content/plugin/webplugin_proxy.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/plugin/webplugin_proxy.h"
   6
   7 #include "build/build_config.h"
   8
   9 #include "base/bind.h"
  10 #include "base/lazy_instance.h"
  11 #include "base/memory/scoped_handle.h"
  12 #include "base/memory/shared_memory.h"
  13 #include "build/build_config.h"
  14 #include "content/child/npapi/npobject_proxy.h"
  15 #include "content/child/npapi/npobject_util.h"
  16 #include "content/child/npapi/webplugin_delegate_impl.h"
  17 #include "content/child/plugin_messages.h"
  18 #include "content/plugin/plugin_channel.h"
  19 #include "content/plugin/plugin_thread.h"
  20 #include "content/public/common/content_client.h"
  21 #include "content/public/common/url_constants.h"
  22 #include "skia/ext/platform_canvas.h"
  23 #include "skia/ext/platform_device.h"
  24 #include "third_party/WebKit/public/web/WebBindings.h"
  25 #include "ui/gfx/blit.h"
  26 #include "ui/gfx/canvas.h"
  27
  28 #if defined(OS_MACOSX)
  29 #include "base/mac/mac_util.h"
  30 #include "base/mac/scoped_cftyperef.h"
  31 #include "content/plugin/webplugin_accelerated_surface_proxy_mac.h"
  32 #endif
  33
  34 #if defined(USE_X11)
  35 #include "ui/base/x/x11_util_internal.h"
  36 #endif
  37
  38 #if defined(OS_WIN)
  39 #include "content/common/plugin_process_messages.h"
  40 #include "content/public/common/sandbox_init.h"
  41 #endif
  42
  43 using WebKit::WebBindings;
  44
  45 namespace content {
  46
  47 WebPluginProxy::SharedTransportDIB::SharedTransportDIB(TransportDIB* dib)
  48     : dib_(dib) {
  49 }
  50
  51 WebPluginProxy::SharedTransportDIB::~SharedTransportDIB() {
  52 }
  53
  54 WebPluginProxy::WebPluginProxy(
  55     PluginChannel* channel,
  56     int route_id,
  57     const GURL& page_url,
  58     int host_render_view_routing_id)
  59     : channel_(channel),
  60       route_id_(route_id),
  61       window_npobject_(NULL),
  62       plugin_element_(NULL),
  63       delegate_(NULL),
  64       waiting_for_paint_(false),
  65       page_url_(page_url),
  66       windowless_buffer_index_(0),
  67       host_render_view_routing_id_(host_render_view_routing_id),
  68       weak_factory_(this) {
  69 #if defined(USE_X11)
  70   windowless_shm_pixmaps_[0] = None;
  71   windowless_shm_pixmaps_[1] = None;
  72   use_shm_pixmap_ = false;
  73
  74   // If the X server supports SHM pixmaps
  75   // and the color depth and masks match,
  76   // then consider using SHM pixmaps for windowless plugin painting.
  77   Display* display = ui::GetXDisplay();
  78   if (ui::QuerySharedMemorySupport(display) == ui::SHARED_MEMORY_PIXMAP &&
  79       ui::BitsPerPixelForPixmapDepth(
  80           display, DefaultDepth(display, DefaultScreen(display))) == 32) {
  81     Visual* vis = DefaultVisual(display, DefaultScreen(display));
  82
  83     if (vis->red_mask == 0xff0000 &&
  84         vis->green_mask == 0xff00 &&
  85         vis->blue_mask == 0xff)
  86       use_shm_pixmap_ = true;
  87   }
  88 #endif
  89 }
  90
  91 WebPluginProxy::~WebPluginProxy() {
  92 #if defined(USE_X11)
  93   if (windowless_shm_pixmaps_[0] != None)
  94     XFreePixmap(ui::GetXDisplay(), windowless_shm_pixmaps_[0]);
  95   if (windowless_shm_pixmaps_[1] != None)
  96     XFreePixmap(ui::GetXDisplay(), windowless_shm_pixmaps_[1]);
  97 #endif
  98
  99 #if defined(OS_MACOSX)
 100   // Destroy the surface early, since it may send messages during cleanup.
 101   if (accelerated_surface_)
 102     accelerated_surface_.reset();
 103 #endif
 104
 105   if (plugin_element_)
 106     WebBindings::releaseObject(plugin_element_);
 107   if (window_npobject_)
 108     WebBindings::releaseObject(window_npobject_);
 109 }
 110
 111 bool WebPluginProxy::Send(IPC::Message* msg) {
 112   return channel_->Send(msg);
 113 }
 114
 115 void WebPluginProxy::SetWindow(gfx::PluginWindowHandle window) {
 116   Send(new PluginHostMsg_SetWindow(route_id_, window));
 117 }
 118
 119 void WebPluginProxy::SetAcceptsInputEvents(bool accepts) {
 120   NOTREACHED();
 121 }
 122
 123 void WebPluginProxy::WillDestroyWindow(gfx::PluginWindowHandle window) {
 124 #if defined(OS_WIN)
 125   PluginThread::current()->Send(
 126       new PluginProcessHostMsg_PluginWindowDestroyed(
 127           window, ::GetParent(window)));
 128 #elif defined(USE_X11)
 129   // Nothing to do.
 130 #else
 131   NOTIMPLEMENTED();
 132 #endif
 133 }
 134
 135 #if defined(OS_WIN)
 136 void WebPluginProxy::SetWindowlessData(
 137     HANDLE pump_messages_event, gfx::NativeViewId dummy_activation_window) {
 138   HANDLE pump_messages_event_for_renderer = NULL;
 139   BrokerDuplicateHandle(pump_messages_event, channel_->peer_pid(),
 140                                  &pump_messages_event_for_renderer,
 141                                  SYNCHRONIZE | EVENT_MODIFY_STATE, 0);
 142   DCHECK(pump_messages_event_for_renderer);
 143   Send(new PluginHostMsg_SetWindowlessData(
 144       route_id_, pump_messages_event_for_renderer, dummy_activation_window));
 145 }
 146 #endif
 147
 148 void WebPluginProxy::CancelResource(unsigned long id) {
 149   Send(new PluginHostMsg_CancelResource(route_id_, id));
 150   resource_clients_.erase(id);
 151 }
 152
 153 void WebPluginProxy::Invalidate() {
 154   gfx::Rect rect(0, 0,
 155                  delegate_->GetRect().width(),
 156                  delegate_->GetRect().height());
 157   InvalidateRect(rect);
 158 }
 159
 160 void WebPluginProxy::InvalidateRect(const gfx::Rect& rect) {
 161 #if defined(OS_MACOSX)
 162   // If this is a Core Animation plugin, all we need to do is inform the
 163   // delegate.
 164   if (!windowless_context()) {
 165     delegate_->PluginDidInvalidate();
 166     return;
 167   }
 168
 169   // Some plugins will send invalidates larger than their own rect when
 170   // offscreen, so constrain invalidates to the plugin rect.
 171   gfx::Rect plugin_rect = delegate_->GetRect();
 172   plugin_rect.set_origin(gfx::Point(0, 0));
 173   plugin_rect.Intersect(rect);
 174   const gfx::Rect invalidate_rect(plugin_rect);
 175 #else
 176   const gfx::Rect invalidate_rect(rect);
 177 #endif
 178   damaged_rect_.Union(invalidate_rect);
 179   // Ignore NPN_InvalidateRect calls with empty rects.  Also don't send an
 180   // invalidate if it's outside the clipping region, since if we did it won't
 181   // lead to a paint and we'll be stuck waiting forever for a DidPaint response.
 182   //
 183   // TODO(piman): There is a race condition here, because this test assumes
 184   // that when the paint actually occurs, the clip rect will not have changed.
 185   // This is not true because scrolling (or window resize) could occur and be
 186   // handled by the renderer before it receives the InvalidateRect message,
 187   // changing the clip rect and then not painting.
 188   if (damaged_rect_.IsEmpty() ||
 189       !delegate_->GetClipRect().Intersects(damaged_rect_))
 190     return;
 191
 192   // Only send a single InvalidateRect message at a time.  From DidPaint we
 193   // will dispatch an additional InvalidateRect message if necessary.
 194   if (!waiting_for_paint_) {
 195     waiting_for_paint_ = true;
 196     // Invalidates caused by calls to NPN_InvalidateRect/NPN_InvalidateRgn
 197     // need to be painted asynchronously as per the NPAPI spec.
 198     base::MessageLoop::current()->PostTask(
 199         FROM_HERE,
 200         base::Bind(&WebPluginProxy::OnPaint,
 201                    weak_factory_.GetWeakPtr(),
 202                    damaged_rect_));
 203     damaged_rect_ = gfx::Rect();
 204   }
 205 }
 206
 207 NPObject* WebPluginProxy::GetWindowScriptNPObject() {
 208   if (window_npobject_)
 209     return window_npobject_;
 210
 211   int npobject_route_id = channel_->GenerateRouteID();
 212   bool success = false;
 213   Send(new PluginHostMsg_GetWindowScriptNPObject(
 214       route_id_, npobject_route_id, &success));
 215   if (!success)
 216     return NULL;
 217
 218   // PluginChannel creates a dummy owner identifier for unknown owners, so
 219   // use that.
 220   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 221
 222   window_npobject_ = NPObjectProxy::Create(channel_.get(),
 223                                            npobject_route_id,
 224                                            host_render_view_routing_id_,
 225                                            page_url_,
 226                                            owner);
 227
 228   return window_npobject_;
 229 }
 230
 231 NPObject* WebPluginProxy::GetPluginElement() {
 232   if (plugin_element_)
 233     return plugin_element_;
 234
 235   int npobject_route_id = channel_->GenerateRouteID();
 236   bool success = false;
 237   Send(new PluginHostMsg_GetPluginElement(route_id_, npobject_route_id,
 238                                           &success));
 239   if (!success)
 240     return NULL;
 241
 242   // PluginChannel creates a dummy owner identifier for unknown owners, so
 243   // use that.
 244   NPP owner = channel_->GetExistingNPObjectOwner(MSG_ROUTING_NONE);
 245
 246   plugin_element_ = NPObjectProxy::Create(channel_.get(),
 247                                           npobject_route_id,
 248                                           host_render_view_routing_id_,
 249                                           page_url_,
 250                                           owner);
 251
 252   return plugin_element_;
 253 }
 254
 255 bool WebPluginProxy::FindProxyForUrl(const GURL& url, std::string* proxy_list) {
 256   bool result = false;
 257   Send(new PluginHostMsg_ResolveProxy(route_id_, url, &result, proxy_list));
 258   return result;
 259 }
 260
 261 void WebPluginProxy::SetCookie(const GURL& url,
 262                                const GURL& first_party_for_cookies,
 263                                const std::string& cookie) {
 264   Send(new PluginHostMsg_SetCookie(route_id_, url,
 265                                    first_party_for_cookies, cookie));
 266 }
 267
 268 std::string WebPluginProxy::GetCookies(const GURL& url,
 269                                        const GURL& first_party_for_cookies) {
 270   std::string cookies;
 271   Send(new PluginHostMsg_GetCookies(route_id_, url,
 272                                     first_party_for_cookies, &cookies));
 273
 274   return cookies;
 275 }
 276
 277 WebPluginResourceClient* WebPluginProxy::GetResourceClient(int id) {
 278   ResourceClientMap::iterator iterator = resource_clients_.find(id);
 279   // The IPC messages which deal with streams are now asynchronous. It is
 280   // now possible to receive stream messages from the renderer for streams
 281   // which may have been cancelled by the plugin.
 282   if (iterator == resource_clients_.end()) {
 283     return NULL;
 284   }
 285
 286   return iterator->second;
 287 }
 288
 289 int WebPluginProxy::GetRendererId() {
 290   if (channel_.get())
 291     return channel_->renderer_id();
 292   return -1;
 293 }
 294
 295 void WebPluginProxy::DidPaint() {
 296   // If we have an accumulated damaged rect, then check to see if we need to
 297   // send out another InvalidateRect message.
 298   waiting_for_paint_ = false;
 299   if (!damaged_rect_.IsEmpty())
 300     InvalidateRect(damaged_rect_);
 301 }
 302
 303 void WebPluginProxy::OnResourceCreated(int resource_id,
 304                                        WebPluginResourceClient* client) {
 305   DCHECK(resource_clients_.find(resource_id) == resource_clients_.end());
 306   resource_clients_[resource_id] = client;
 307 }
 308
 309 void WebPluginProxy::HandleURLRequest(const char* url,
 310                                       const char* method,
 311                                       const char* target,
 312                                       const char* buf,
 313                                       unsigned int len,
 314                                       int notify_id,
 315                                       bool popups_allowed,
 316                                       bool notify_redirects) {
 317  if (!target && (0 == base::strcasecmp(method, "GET"))) {
 318     // Please refer to https://bugzilla.mozilla.org/show_bug.cgi?id=366082
 319     // for more details on this.
 320     if (delegate_->GetQuirks() &
 321         WebPluginDelegateImpl::PLUGIN_QUIRK_BLOCK_NONSTANDARD_GETURL_REQUESTS) {
 322       GURL request_url(url);
 323       if (!request_url.SchemeIs(chrome::kHttpScheme) &&
 324           !request_url.SchemeIs(chrome::kHttpsScheme) &&
 325           !request_url.SchemeIs(chrome::kFtpScheme)) {
 326         return;
 327       }
 328     }
 329   }
 330
 331   PluginHostMsg_URLRequest_Params params;
 332   params.url = url;
 333   params.method = method;
 334   if (target)
 335     params.target = std::string(target);
 336
 337   if (len) {
 338     params.buffer.resize(len);
 339     memcpy(&params.buffer.front(), buf, len);
 340   }
 341
 342   params.notify_id = notify_id;
 343   params.popups_allowed = popups_allowed;
 344   params.notify_redirects = notify_redirects;
 345
 346   Send(new PluginHostMsg_URLRequest(route_id_, params));
 347 }
 348
 349 void WebPluginProxy::Paint(const gfx::Rect& rect) {
 350 #if defined(OS_MACOSX)
 351   if (!windowless_context())
 352     return;
 353 #else
 354   if (!windowless_canvas() || !windowless_canvas()->getDevice())
 355     return;
 356 #endif
 357
 358   // Clear the damaged area so that if the plugin doesn't paint there we won't
 359   // end up with the old values.
 360   gfx::Rect offset_rect = rect;
 361   offset_rect.Offset(delegate_->GetRect().OffsetFromOrigin());
 362 #if defined(OS_MACOSX)
 363   CGContextSaveGState(windowless_context());
 364   // It is possible for windowless_contexts_ to change during plugin painting
 365   // (since the plugin can make a synchronous call during paint event handling),
 366   // in which case we don't want to try to restore later. Not an owning ref
 367   // since owning the ref without owning the shared backing memory doesn't make
 368   // sense, so this should only be used for pointer comparisons.
 369   CGContextRef saved_context_weak = windowless_context();
 370   // We also save the buffer index for the comparison because if we flip buffers
 371   // but haven't reallocated them then we do need to restore the context because
 372   // it is going to continue to be used.
 373   int saved_index = windowless_buffer_index_;
 374
 375   CGContextClipToRect(windowless_context(), rect.ToCGRect());
 376   // TODO(caryclark): This is a temporary workaround to allow the Darwin / Skia
 377   // port to share code with the Darwin / CG port. All ports will eventually use
 378   // the common code below.
 379   delegate_->CGPaint(windowless_context(), rect);
 380   if (windowless_contexts_[saved_index].get() == saved_context_weak)
 381     CGContextRestoreGState(windowless_contexts_[saved_index]);
 382 #else
 383   // See above comment about windowless_context_ changing.
 384   // http::/crbug.com/139462
 385   skia::RefPtr<skia::PlatformCanvas> saved_canvas = windowless_canvas();
 386 #if defined(USE_X11)
 387   scoped_refptr<SharedTransportDIB> local_dib_ref(
 388       windowless_dibs_[windowless_buffer_index_]);
 389 #endif
 390
 391   saved_canvas->save();
 392
 393   // The given clip rect is relative to the plugin coordinate system.
 394   SkRect sk_rect = { SkIntToScalar(rect.x()),
 395                      SkIntToScalar(rect.y()),
 396                      SkIntToScalar(rect.right()),
 397                      SkIntToScalar(rect.bottom()) };
 398   saved_canvas->clipRect(sk_rect);
 399
 400   // Fill a transparent value so that if the plugin supports transparency that
 401   // will work.
 402   saved_canvas->drawColor(SkColorSetARGB(0, 0, 0, 0), SkXfermode::kSrc_Mode);
 403
 404   // Bring the windowless canvas into the window coordinate system, which is
 405   // how the plugin expects to draw (since the windowless API was originally
 406   // designed just for scribbling over the web page).
 407   saved_canvas->translate(SkIntToScalar(-delegate_->GetRect().x()),
 408                           SkIntToScalar(-delegate_->GetRect().y()));
 409
 410   // Before we send the invalidate, paint so that renderer uses the updated
 411   // bitmap.
 412   delegate_->Paint(saved_canvas.get(), offset_rect);
 413
 414   saved_canvas->restore();
 415 #endif
 416 }
 417
 418 void WebPluginProxy::UpdateGeometry(
 419     const gfx::Rect& window_rect,
 420     const gfx::Rect& clip_rect,
 421     const TransportDIB::Handle& windowless_buffer0,
 422     const TransportDIB::Handle& windowless_buffer1,
 423     int windowless_buffer_index) {
 424   gfx::Rect old = delegate_->GetRect();
 425   gfx::Rect old_clip_rect = delegate_->GetClipRect();
 426
 427   // Update the buffers before doing anything that could call into plugin code,
 428   // so that we don't process buffer changes out of order if plugins make
 429   // synchronous calls that lead to nested UpdateGeometry calls.
 430   if (TransportDIB::is_valid_handle(windowless_buffer0)) {
 431     // The plugin's rect changed, so now we have new buffers to draw into.
 432     SetWindowlessBuffers(windowless_buffer0,
 433                          windowless_buffer1,
 434                          window_rect);
 435   }
 436
 437   DCHECK(0 <= windowless_buffer_index && windowless_buffer_index <= 1);
 438   windowless_buffer_index_ = windowless_buffer_index;
 439 #if defined(USE_X11)
 440   delegate_->SetWindowlessShmPixmap(windowless_shm_pixmap());
 441 #endif
 442
 443 #if defined(OS_MACOSX)
 444   delegate_->UpdateGeometryAndContext(
 445       window_rect, clip_rect, windowless_context());
 446 #else
 447   delegate_->UpdateGeometry(window_rect, clip_rect);
 448 #endif
 449
 450   // Send over any pending invalidates which occured when the plugin was
 451   // off screen.
 452   if (delegate_->IsWindowless() && !clip_rect.IsEmpty() &&
 453       !damaged_rect_.IsEmpty()) {
 454     InvalidateRect(damaged_rect_);
 455   }
 456 }
 457
 458 #if defined(OS_WIN)
 459
 460 void WebPluginProxy::CreateCanvasFromHandle(
 461     const TransportDIB::Handle& dib_handle,
 462     const gfx::Rect& window_rect,
 463     skia::RefPtr<skia::PlatformCanvas>* canvas) {
 464   *canvas = skia::AdoptRef(
 465       skia::CreatePlatformCanvas(window_rect.width(),
 466                                  window_rect.height(),
 467                                  true,
 468                                  dib_handle,
 469                                  skia::RETURN_NULL_ON_FAILURE));
 470   // The canvas does not own the section so we need to close it now.
 471   CloseHandle(dib_handle);
 472 }
 473
 474 void WebPluginProxy::SetWindowlessBuffers(
 475     const TransportDIB::Handle& windowless_buffer0,
 476     const TransportDIB::Handle& windowless_buffer1,
 477     const gfx::Rect& window_rect) {
 478   CreateCanvasFromHandle(windowless_buffer0,
 479                          window_rect,
 480                          &windowless_canvases_[0]);
 481   if (!windowless_canvases_[0]) {
 482     windowless_canvases_[1].clear();
 483     return;
 484   }
 485   CreateCanvasFromHandle(windowless_buffer1,
 486                          window_rect,
 487                          &windowless_canvases_[1]);
 488   if (!windowless_canvases_[1]) {
 489     windowless_canvases_[0].clear();
 490     return;
 491   }
 492 }
 493
 494 #elif defined(OS_MACOSX)
 495
 496 void WebPluginProxy::CreateDIBAndCGContextFromHandle(
 497     const TransportDIB::Handle& dib_handle,
 498     const gfx::Rect& window_rect,
 499     scoped_ptr<TransportDIB>* dib_out,
 500     base::ScopedCFTypeRef<CGContextRef>* cg_context_out) {
 501   // Convert the shared memory handle to a handle that works in our process,
 502   // and then use that to create a CGContextRef.
 503   TransportDIB* dib = TransportDIB::Map(dib_handle);
 504   CGContextRef cg_context = NULL;
 505   if (dib) {
 506     cg_context = CGBitmapContextCreate(
 507         dib->memory(),
 508         window_rect.width(),
 509         window_rect.height(),
 510         8,
 511         4 * window_rect.width(),
 512         base::mac::GetSystemColorSpace(),
 513         kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host);
 514     CGContextTranslateCTM(cg_context, 0, window_rect.height());
 515     CGContextScaleCTM(cg_context, 1, -1);
 516   }
 517   dib_out->reset(dib);
 518   cg_context_out->reset(cg_context);
 519 }
 520
 521 void WebPluginProxy::SetWindowlessBuffers(
 522     const TransportDIB::Handle& windowless_buffer0,
 523     const TransportDIB::Handle& windowless_buffer1,
 524     const gfx::Rect& window_rect) {
 525   CreateDIBAndCGContextFromHandle(windowless_buffer0,
 526                                   window_rect,
 527                                   &windowless_dibs_[0],
 528                                   &windowless_contexts_[0]);
 529   CreateDIBAndCGContextFromHandle(windowless_buffer1,
 530                                   window_rect,
 531                                   &windowless_dibs_[1],
 532                                   &windowless_contexts_[1]);
 533 }
 534
 535 #elif defined(TOOLKIT_GTK)
 536
 537 void WebPluginProxy::CreateDIBAndCanvasFromHandle(
 538     const TransportDIB::Handle& dib_handle,
 539     const gfx::Rect& window_rect,
 540     scoped_refptr<SharedTransportDIB>* dib_out,
 541     skia::RefPtr<skia::PlatformCanvas>* canvas) {
 542   TransportDIB* dib = TransportDIB::Map(dib_handle);
 543   // dib may be NULL if the renderer has already destroyed the TransportDIB by
 544   // the time we receive the handle, e.g. in case of multiple resizes.
 545   if (dib) {
 546     *canvas = skia::AdoptRef(
 547         dib->GetPlatformCanvas(window_rect.width(), window_rect.height()));
 548   } else {
 549     canvas->clear();
 550   }
 551   *dib_out = new SharedTransportDIB(dib);
 552 }
 553
 554 void WebPluginProxy::CreateShmPixmapFromDIB(
 555     TransportDIB* dib,
 556     const gfx::Rect& window_rect,
 557     XID* pixmap_out) {
 558   if (dib) {
 559     Display* display = ui::GetXDisplay();
 560     XID root_window = ui::GetX11RootWindow();
 561     XShmSegmentInfo shminfo = {0};
 562
 563     if (*pixmap_out != None)
 564       XFreePixmap(display, *pixmap_out);
 565
 566     shminfo.shmseg = dib->MapToX(display);
 567     // Create a shared memory pixmap based on the image buffer.
 568     *pixmap_out = XShmCreatePixmap(display, root_window,
 569                                    NULL, &shminfo,
 570                                    window_rect.width(), window_rect.height(),
 571                                    DefaultDepth(display,
 572                                                 DefaultScreen(display)));
 573   }
 574 }
 575
 576 void WebPluginProxy::SetWindowlessBuffers(
 577     const TransportDIB::Handle& windowless_buffer0,
 578     const TransportDIB::Handle& windowless_buffer1,
 579     const gfx::Rect& window_rect) {
 580   CreateDIBAndCanvasFromHandle(windowless_buffer0,
 581                                window_rect,
 582                                &windowless_dibs_[0],
 583                                &windowless_canvases_[0]);
 584   CreateDIBAndCanvasFromHandle(windowless_buffer1,
 585                                window_rect,
 586                                &windowless_dibs_[1],
 587                                &windowless_canvases_[1]);
 588
 589   // If SHM pixmaps support is available, create SHM pixmaps to pass to the
 590   // delegate for windowless plugin painting.
 591   if (delegate_->IsWindowless() && use_shm_pixmap_) {
 592     CreateShmPixmapFromDIB(windowless_dibs_[0]->dib(),
 593                            window_rect,
 594                            &windowless_shm_pixmaps_[0]);
 595     CreateShmPixmapFromDIB(windowless_dibs_[1]->dib(),
 596                            window_rect,
 597                            &windowless_shm_pixmaps_[1]);
 598   }
 599 }
 600
 601 #else
 602
 603 void WebPluginProxy::SetWindowlessBuffers(
 604     const TransportDIB::Handle& windowless_buffer0,
 605     const TransportDIB::Handle& windowless_buffer1,
 606     const gfx::Rect& window_rect) {
 607   NOTIMPLEMENTED();
 608 }
 609
 610 #endif
 611
 612 void WebPluginProxy::CancelDocumentLoad() {
 613   Send(new PluginHostMsg_CancelDocumentLoad(route_id_));
 614 }
 615
 616 void WebPluginProxy::InitiateHTTPRangeRequest(
 617     const char* url, const char* range_info, int range_request_id) {
 618   Send(new PluginHostMsg_InitiateHTTPRangeRequest(
 619       route_id_, url, range_info, range_request_id));
 620 }
 621
 622 void WebPluginProxy::SetDeferResourceLoading(unsigned long resource_id,
 623                                              bool defer) {
 624   Send(new PluginHostMsg_DeferResourceLoading(route_id_, resource_id, defer));
 625 }
 626
 627 #if defined(OS_MACOSX)
 628 void WebPluginProxy::FocusChanged(bool focused) {
 629   IPC::Message* msg = new PluginHostMsg_FocusChanged(route_id_, focused);
 630   Send(msg);
 631 }
 632
 633 void WebPluginProxy::StartIme() {
 634   IPC::Message* msg = new PluginHostMsg_StartIme(route_id_);
 635   // This message can be sent during event-handling, and needs to be delivered
 636   // within that context.
 637   msg->set_unblock(true);
 638   Send(msg);
 639 }
 640
 641 WebPluginAcceleratedSurface* WebPluginProxy::GetAcceleratedSurface(
 642     gfx::GpuPreference gpu_preference) {
 643   if (!accelerated_surface_)
 644     accelerated_surface_.reset(
 645         WebPluginAcceleratedSurfaceProxy::Create(this, gpu_preference));
 646   return accelerated_surface_.get();
 647 }
 648
 649 void WebPluginProxy::AcceleratedPluginEnabledRendering() {
 650   Send(new PluginHostMsg_AcceleratedPluginEnabledRendering(route_id_));
 651 }
 652
 653 void WebPluginProxy::AcceleratedPluginAllocatedIOSurface(int32 width,
 654                                                          int32 height,
 655                                                          uint32 surface_id) {
 656   Send(new PluginHostMsg_AcceleratedPluginAllocatedIOSurface(
 657       route_id_, width, height, surface_id));
 658 }
 659
 660 void WebPluginProxy::AcceleratedPluginSwappedIOSurface() {
 661   Send(new PluginHostMsg_AcceleratedPluginSwappedIOSurface(
 662       route_id_));
 663 }
 664 #endif
 665
 666 void WebPluginProxy::OnPaint(const gfx::Rect& damaged_rect) {
 667   GetContentClient()->SetActiveURL(page_url_);
 668
 669   Paint(damaged_rect);
 670   Send(new PluginHostMsg_InvalidateRect(route_id_, damaged_rect));
 671 }
 672
 673 bool WebPluginProxy::IsOffTheRecord() {
 674   return channel_->incognito();
 675 }
 676
 677 void WebPluginProxy::ResourceClientDeleted(
 678     WebPluginResourceClient* resource_client) {
 679   ResourceClientMap::iterator index = resource_clients_.begin();
 680   while (index != resource_clients_.end()) {
 681     WebPluginResourceClient* client = (*index).second;
 682
 683     if (client == resource_client) {
 684       resource_clients_.erase(index++);
 685     } else {
 686       index++;
 687     }
 688   }
 689 }
 690
 691 void WebPluginProxy::URLRedirectResponse(bool allow, int resource_id) {
 692   Send(new PluginHostMsg_URLRedirectResponse(route_id_, allow, resource_id));
 693 }
 694
 695 #if defined(OS_WIN) && !defined(USE_AURA)
 696 void WebPluginProxy::UpdateIMEStatus() {
 697   // Retrieve the IME status from a plug-in and send it to a renderer process
 698   // when the plug-in has updated it.
 699   int input_type;
 700   gfx::Rect caret_rect;
 701   if (!delegate_->GetIMEStatus(&input_type, &caret_rect))
 702     return;
 703
 704   Send(new PluginHostMsg_NotifyIMEStatus(route_id_, input_type, caret_rect));
 705 }
 706 #endif
 707
 708 }  // namespace content