content/renderer/scheduler/renderer_scheduler.cc

   1 // Copyright 2014 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/renderer/scheduler/renderer_scheduler.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/trace_event/trace_event.h"
  10 #include "base/trace_event/trace_event_impl.h"
  11 #include "content/child/scheduler/scheduler_message_loop_delegate.h"
  12 #include "content/public/common/content_switches.h"
  13 #include "content/renderer/scheduler/null_renderer_scheduler.h"
  14 #include "content/renderer/scheduler/renderer_scheduler_impl.h"
  15
  16 namespace content {
  17
  18 RendererScheduler::RendererScheduler() {
  19 }
  20
  21 RendererScheduler::~RendererScheduler() {
  22 }
  23
  24 // static
  25 scoped_ptr<RendererScheduler> RendererScheduler::Create() {
  26   // Ensure worker.scheduler appears as an option in about://tracing
  27   base::trace_event::TraceLog::GetCategoryGroupEnabled(
  28       TRACE_DISABLED_BY_DEFAULT("worker.scheduler"));
  29
  30   base::CommandLine* command_line = base::CommandLine::ForCurrentProcess();
  31   if (command_line->HasSwitch(switches::kDisableBlinkScheduler)) {
  32     return make_scoped_ptr(new NullRendererScheduler());
  33   } else {
  34     base::MessageLoop* message_loop = base::MessageLoop::current();
  35     return make_scoped_ptr(new RendererSchedulerImpl(
  36         SchedulerMessageLoopDelegate::Create(message_loop)));
  37   }
  38 }
  39
  40 }  // namespace content