Deal with AllocateGpuMemoryBuffer returning null.

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/buffer_format_util.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 
 namespace media {
@@ skipping 65 matching lines @@
 
 bool MockGpuVideoAcceleratorFactories::IsGpuVideoAcceleratorEnabled() {
   return true;
 }
 
 scoped_ptr<gfx::GpuMemoryBuffer>
 MockGpuVideoAcceleratorFactories::AllocateGpuMemoryBuffer(
     const gfx::Size& size,
     gfx::BufferFormat format,
     gfx::BufferUsage usage) {
+  if (fail_to_allocate_gpu_memory_buffer_)
+    return nullptr;
   return make_scoped_ptr<gfx::GpuMemoryBuffer>(
       new GpuMemoryBufferImpl(size, format));
 }
 
 scoped_ptr<base::SharedMemory>
 MockGpuVideoAcceleratorFactories::CreateSharedMemory(size_t size) {
   return nullptr;
 }
 
 scoped_ptr<VideoDecodeAccelerator>
 MockGpuVideoAcceleratorFactories::CreateVideoDecodeAccelerator() {
   return scoped_ptr<VideoDecodeAccelerator>(DoCreateVideoDecodeAccelerator());
 }
 
 scoped_ptr<VideoEncodeAccelerator>
 MockGpuVideoAcceleratorFactories::CreateVideoEncodeAccelerator() {
   return scoped_ptr<VideoEncodeAccelerator>(DoCreateVideoEncodeAccelerator());
 }
 
 bool MockGpuVideoAcceleratorFactories::ShouldUseGpuMemoryBuffersForVideoFrames()
     const {
   return false;
 }
 
 unsigned MockGpuVideoAcceleratorFactories::ImageTextureTarget() {
   return GL_TEXTURE_2D;
 }
 
 }  // namespace media