Make VEA client of command buffer; move sync. IPC to VDA/VEA::Initialize()

media/cast/test/fake_video_encode_accelerator.h

Index: media/cast/test/fake_video_encode_accelerator.h
diff --git a/media/cast/test/fake_video_encode_accelerator.h b/media/cast/test/fake_video_encode_accelerator.h
index 20ad7c3779a1987f5ed4893cf6b1f206a729e7bf..9ec40936d0ed436b14717790cdffa8c00ae7bba9 100644
--- a/media/cast/test/fake_video_encode_accelerator.h
+++ b/media/cast/test/fake_video_encode_accelerator.h
@@ -9,17 +9,23 @@
 
 #include <list>
 
+#include "base/memory/weak_ptr.h"
 #include "media/base/bitstream_buffer.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
 namespace media {
 namespace cast {
 namespace test {
 
 class FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
  public:
-  FakeVideoEncodeAccelerator();
+  explicit FakeVideoEncodeAccelerator(
+      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
 
-  virtual void Initialize(media::VideoFrame::Format input_format,
+  virtual bool Initialize(media::VideoFrame::Format input_format,
                           const gfx::Size& input_visible_size,
                           VideoCodecProfile output_profile,
                           uint32 initial_bitrate,
@@ -38,11 +44,22 @@ class FakeVideoEncodeAccelerator : public VideoEncodeAccelerator {
  private:
   virtual ~FakeVideoEncodeAccelerator();
 
+  void DoRequireBitstreamBuffers(unsigned int input_count,
+                                 const gfx::Size& input_coded_size,
+                                 size_t output_buffer_size) const;
+  void DoBitstreamBufferReady(int32 bitstream_buffer_id,
+                              size_t payload_size,
+                              bool key_frame) const;
+
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+
   VideoEncodeAccelerator::Client* client_;
   bool first_;
 
   std::list<int32> available_buffer_ids_;
 
+  base::WeakPtrFactory<FakeVideoEncodeAccelerator> weak_this_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(FakeVideoEncodeAccelerator);
 };