Add missing 'virtual'.

content/renderer/renderer_gpu_video_decoder_factories.h

 // Copyright (c) 2011 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.
 
 #ifndef CONTENT_RENDERER_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_
 #define CONTENT_RENDERER_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
@@ skipping 11 matching lines @@
 class RendererGpuVideoDecoderFactories
     : public media::GpuVideoDecoder::Factories {
  public:
   // Takes a ref on |gpu_channel_host| and tests |context| for NULL before each
   // use.
   RendererGpuVideoDecoderFactories(GpuChannelHost* gpu_channel_host,
                                    base::WeakPtr<RendererGLContext> context);
 
   virtual ~RendererGpuVideoDecoderFactories();
 
-  media::VideoDecodeAccelerator* CreateVideoDecodeAccelerator(
+  virtual media::VideoDecodeAccelerator* CreateVideoDecodeAccelerator(
       media::VideoDecodeAccelerator::Profile profile,
       media::VideoDecodeAccelerator::Client* client) OVERRIDE;
 
   virtual bool CreateTextures(int32 count, const gfx::Size& size,
                               std::vector<uint32>* texture_ids) OVERRIDE;
 
   virtual bool DeleteTexture(uint32 texture_id) OVERRIDE;
 
   virtual base::SharedMemory* CreateSharedMemory(size_t size) OVERRIDE;
 
  private:
   scoped_refptr<GpuChannelHost> gpu_channel_host_;
   base::WeakPtr<RendererGLContext> context_;
   DISALLOW_IMPLICIT_CONSTRUCTORS(RendererGpuVideoDecoderFactories);
 };
 
 #endif  // CONTENT_RENDERER_RENDERER_GPU_VIDEO_DECODER_FACTORIES_H_