Add GenericSharedMemoryId and use w/ GpuMemoryBuffer

media/renderers/mock_gpu_video_accelerator_factories.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/renderers/mock_gpu_video_accelerator_factories.h"
 
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace media {
 
@@ skipping 14 matching lines @@
   bool IsMapped() const override {
     NOTREACHED();
     return false;
   }
   gfx::BufferFormat GetFormat() const override {
     return gfx::BufferFormat::R_8;
   }
   void GetStride(int* stride) const override { stride[0] = size_.width(); }
   gfx::GpuMemoryBufferId GetId() const override {
     NOTREACHED();
-    return 0;
+    return gfx::GpuMemoryBufferId(0);
   }
   gfx::GpuMemoryBufferHandle GetHandle() const override {
     NOTREACHED();
     return gfx::GpuMemoryBufferHandle();
   }
   ClientBuffer AsClientBuffer() override {
     return reinterpret_cast<ClientBuffer>(this);
   }
 
  private:
@@ skipping 33 matching lines @@
 scoped_ptr<VideoEncodeAccelerator>
 MockGpuVideoAcceleratorFactories::CreateVideoEncodeAccelerator() {
   return scoped_ptr<VideoEncodeAccelerator>(DoCreateVideoEncodeAccelerator());
 }
 
 unsigned MockGpuVideoAcceleratorFactories::ImageTextureTarget() {
   return GL_TEXTURE_2D;
 }
 
 }  // namespace media