Added MediaSourceState unit test.

media/base/mock_filters.h

 // Copyright (c) 2012 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_BASE_MOCK_FILTERS_H_
 #define MEDIA_BASE_MOCK_FILTERS_H_
 
 #include <stdint.h>
 
 #include <memory>
 #include <string>
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "media/base/audio_decoder.h"
 #include "media/base/audio_decoder_config.h"
 #include "media/base/audio_renderer.h"
 #include "media/base/cdm_context.h"
 #include "media/base/decoder_buffer.h"
 #include "media/base/decryptor.h"
 #include "media/base/demuxer.h"
 #include "media/base/media_track.h"
 #include "media/base/pipeline.h"
 #include "media/base/pipeline_status.h"
 #include "media/base/renderer.h"
 #include "media/base/renderer_client.h"
+#include "media/base/stream_parser.h"
 #include "media/base/text_track.h"
 #include "media/base/text_track_config.h"
 #include "media/base/time_source.h"
 #include "media/base/video_decoder.h"
 #include "media/base/video_decoder_config.h"
 #include "media/base/video_frame.h"
 #include "media/base/video_renderer.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace media {
@@ skipping 331 matching lines @@
   int GetCdmId() const override;
 
   void set_cdm_id(int cdm_id);
 
  private:
   int cdm_id_ = CdmContext::kInvalidCdmId;
 
   DISALLOW_COPY_AND_ASSIGN(MockCdmContext);
 };
 
+class MockStreamParser : public StreamParser {
+ public:
+  MockStreamParser();
+  ~MockStreamParser() override;
+
+  // StreamParser interface
+  MOCK_METHOD8(
+      Init,
+      void(const InitCB& init_cb,
+           const NewConfigCB& config_cb,
+           const NewBuffersCB& new_buffers_cb,
+           bool ignore_text_track,
+           const EncryptedMediaInitDataCB& encrypted_media_init_data_cb,
+           const NewMediaSegmentCB& new_segment_cb,
+           const EndMediaSegmentCB& end_of_segment_cb,
+           const scoped_refptr<MediaLog>& media_log));
+  MOCK_METHOD0(Flush, void());
+  MOCK_METHOD2(Parse, bool(const uint8_t*, int));
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(MockStreamParser);
+};
+
 }  // namespace media
 
 #endif  // MEDIA_BASE_MOCK_FILTERS_H_