Make the generated stubs weak. Enable the unittests that had conflicting symbols.

media/filters/test_video_decoder.h

 // Copyright (c) 2009 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 MEDIA_FILTERS_TEST_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_TEST_VIDEO_DECODER_H_
 
 #include <string>
 
 #include "media/base/buffers.h"
 #include "media/base/factory.h"
 #include "media/base/filters.h"
+#include "media/base/mock_media_filters.h"
 #include "media/base/video_frame_impl.h"
 #include "media/filters/decoder_base.h"
 
 namespace media {
 
 class TestVideoDecoder : public DecoderBase<VideoDecoder, VideoFrame> {
  public:
   TestVideoDecoder()
       : DecoderBase<VideoDecoder, VideoFrame>("VideoDecoderThread"),
         video_width_(0),
@@ skipping 21 matching lines @@
 
   void OnDecode(Buffer* buffer) {
     scoped_refptr<VideoFrame> frame;
     VideoFrameImpl::CreateFrame(VideoSurface::YV12,
                                 video_width_,
                                 video_height_,
                                 buffer->GetTimestamp(),
                                 buffer->GetDuration(),
                                 &frame);
     if (frame) {
-      MockVideoDecoder::InitializeYV12Frame(frame, 0.5f);
+      old_mocks::MockVideoDecoder::InitializeYV12Frame(frame, 0.5f);
       EnqueueResult(frame);
     } else {
       host_->Error(PIPELINE_ERROR_OUT_OF_MEMORY);
     }
   }
 
   static bool IsMediaFormatSupported(const MediaFormat& media_format) {
     std::string mime_type;
     return (media_format.GetAsString(MediaFormat::kMimeType, &mime_type) &&
             mime_type == mime_type::kH264AnnexB);
   }
 
  private:
   friend class scoped_refptr<TestVideoDecoder>;
   virtual ~TestVideoDecoder() {}
 
   size_t video_width_;
   size_t video_height_;
 
   DISALLOW_COPY_AND_ASSIGN(TestVideoDecoder);
 };
 
 }  // namespace
 
 #endif  // MEDIA_FILTERS_TEST_VIDEO_DECODER_H_