content/renderer/gpu/queue_message_swap_promise.h

   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 #ifndef CONTENT_RENDERER_QUEUE_MESSAGE_SWAP_PROMISE_H_
   6 #define CONTENT_RENDERER_QUEUE_MESSAGE_SWAP_PROMISE_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "cc/base/swap_promise.h"
  11
  12 namespace IPC {
  13 class SyncMessageFilter;
  14 }
  15
  16 namespace content {
  17
  18 class FrameSwapMessageQueue;
  19
  20 class QueueMessageSwapPromise : public cc::SwapPromise {
  21  public:
  22   QueueMessageSwapPromise(scoped_refptr<IPC::SyncMessageFilter> message_sender,
  23                           scoped_refptr<FrameSwapMessageQueue> message_queue,
  24                           int source_frame_number);
  25
  26   virtual ~QueueMessageSwapPromise();
  27
  28   virtual void DidSwap(cc::CompositorFrameMetadata* metadata) override;
  29
  30   virtual void DidNotSwap(DidNotSwapReason reason) override;
  31
  32   virtual int64 TraceId() const override;
  33
  34  private:
  35   void PromiseCompleted();
  36
  37   scoped_refptr<IPC::SyncMessageFilter> message_sender_;
  38   scoped_refptr<content::FrameSwapMessageQueue> message_queue_;
  39   int source_frame_number_;
  40 #if DCHECK_IS_ON
  41   bool completed_;
  42 #endif
  43 };
  44
  45 }  // namespace content
  46
  47 #endif  // CONTENT_RENDERER_QUEUE_MESSAGE_SWAP_PROMISE_H_