Remove media::VideoDecodeContext as it has no implementation and is unused.

media/video/ffmpeg_video_decode_engine_unittest.cc

 // 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.
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "media/base/data_buffer.h"
 #include "media/base/pipeline.h"
 #include "media/base/test_data_util.h"
 #include "media/filters/ffmpeg_glue.h"
@@ skipping 43 matching lines @@
 
     end_of_stream_buffer_ = new DataBuffer(0);
   }
 
   ~FFmpegVideoDecodeEngineTest() {
     test_engine_.reset();
   }
 
   void Initialize() {
     EXPECT_CALL(*this, OnInitializeComplete(true));
-    test_engine_->Initialize(MessageLoop::current(), this, NULL, config_);
+    test_engine_->Initialize(this, config_);
   }
 
   // Decodes the single compressed frame in |buffer| and writes the
   // uncompressed output to |video_frame|. This method works with single
   // and multithreaded decoders. End of stream buffers are used to trigger
   // the frame to be returned in the multithreaded decoder case.
   void DecodeASingleFrame(const scoped_refptr<Buffer>& buffer,
                           scoped_refptr<VideoFrame>* video_frame) {
     EXPECT_CALL(*this, ProduceVideoSample(_))
         .WillOnce(DemuxComplete(test_engine_.get(), buffer))
@@ skipping 72 matching lines @@
 
 TEST_F(FFmpegVideoDecodeEngineTest, Initialize_FindDecoderFails) {
   VideoDecoderConfig config(kUnknownVideoCodec, kVideoFormat,
                             kCodedSize, kVisibleRect,
                             kFrameRate.num, kFrameRate.den,
                             kAspectRatio.num, kAspectRatio.den,
                             NULL, 0);
 
   // Test avcodec_find_decoder() returning NULL.
   EXPECT_CALL(*this, OnInitializeComplete(false));
-  test_engine_->Initialize(MessageLoop::current(), this, NULL, config);
+  test_engine_->Initialize(this, config);
 }
 
 TEST_F(FFmpegVideoDecodeEngineTest, Initialize_OpenDecoderFails) {
   // Specify Theora w/o extra data so that avcodec_open() fails.
   VideoDecoderConfig config(kCodecTheora, kVideoFormat,
                             kCodedSize, kVisibleRect,
                             kFrameRate.num, kFrameRate.den,
                             kAspectRatio.num, kAspectRatio.den,
                             NULL, 0);
   EXPECT_CALL(*this, OnInitializeComplete(false));
-  test_engine_->Initialize(MessageLoop::current(), this, NULL, config);
+  test_engine_->Initialize(this, config);
 }
 
 TEST_F(FFmpegVideoDecodeEngineTest, DecodeFrame_Normal) {
   Initialize();
 
   // Simulate decoding a single frame.
   scoped_refptr<VideoFrame> video_frame;
   DecodeASingleFrame(i_frame_buffer_, &video_frame);
 
   // |video_frame| timestamp is 0 because we set the timestamp based off
@@ skipping 87 matching lines @@
 //  DecodeIFrameThenTestFile("vp8-I-frame-320x480");
 //}
 
 // Decode |i_frame_buffer_| and then a frame with a smaller height and verify
 // the output size didn't change.
 TEST_F(FFmpegVideoDecodeEngineTest, DecodeFrame_SmallerHeight) {
   DecodeIFrameThenTestFile("vp8-I-frame-320x120");
 }
 
 }  // namespace media