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

media/cast/test/fake_gpu_video_accelerator_factories.cc

Index: media/cast/test/fake_gpu_video_accelerator_factories.cc
diff --git a/media/cast/test/fake_gpu_video_accelerator_factories.cc b/media/cast/test/fake_gpu_video_accelerator_factories.cc
index 9718a5631944fae5dcdba15d624f45a68787eb50..d3f639e9df0b80bb6be479ae95d286bf65608e32 100644
--- a/media/cast/test/fake_gpu_video_accelerator_factories.cc
+++ b/media/cast/test/fake_gpu_video_accelerator_factories.cc
@@ -5,6 +5,7 @@
 #include "media/cast/test/fake_gpu_video_accelerator_factories.h"
 
 #include "base/logging.h"
+#include "base/single_thread_task_runner.h"
 #include "media/cast/test/fake_video_encode_accelerator.h"
 #include "media/video/video_decode_accelerator.h"
 
@@ -20,7 +21,8 @@ FakeGpuVideoAcceleratorFactories::~FakeGpuVideoAcceleratorFactories() {}
 
 scoped_ptr<VideoEncodeAccelerator>
 FakeGpuVideoAcceleratorFactories::CreateVideoEncodeAccelerator() {
-  return scoped_ptr<VideoEncodeAccelerator>(new FakeVideoEncodeAccelerator());
+  return scoped_ptr<VideoEncodeAccelerator>(
+      new FakeVideoEncodeAccelerator(fake_task_runner_));
 }
 
 base::SharedMemory* FakeGpuVideoAcceleratorFactories::CreateSharedMemory(
@@ -47,8 +49,7 @@ bool FakeGpuVideoAcceleratorFactories::CreateTextures(
 }
 
 scoped_ptr<VideoDecodeAccelerator>
-FakeGpuVideoAcceleratorFactories::CreateVideoDecodeAccelerator(
-    VideoCodecProfile profile) {
+FakeGpuVideoAcceleratorFactories::CreateVideoDecodeAccelerator() {
   return scoped_ptr<VideoDecodeAccelerator>(
       static_cast<media::VideoDecodeAccelerator*>(NULL));
 }