Added MediaSourceState unit test.

media/filters/decrypting_demuxer_stream_unittest.cc

 // 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.
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 37 matching lines @@
 }
 
 // Use anonymous namespace here to prevent the actions to be defined multiple
 // times across multiple test files. Sadly we can't use static for them.
 namespace {
 
 ACTION_P(ReturnBuffer, buffer) {
   arg0.Run(buffer.get() ? DemuxerStream::kOk : DemuxerStream::kAborted, buffer);
 }
 
-MATCHER(IsEndOfStream, "end of stream") {
-  return arg->end_of_stream();
-}
-
 }  // namespace
 
 class DecryptingDemuxerStreamTest : public testing::Test {
  public:
   DecryptingDemuxerStreamTest()
       : demuxer_stream_(new DecryptingDemuxerStream(
             message_loop_.task_runner(),
             new MediaLog(),
             base::Bind(&DecryptingDemuxerStreamTest::OnWaitingForDecryptionKey,
                        base::Unretained(this)))),
@@ skipping 448 matching lines @@
 }
 
 // Test destruction after reset.
 TEST_F(DecryptingDemuxerStreamTest, Destroy_AfterReset) {
   Initialize();
   EnterNormalReadingState();
   Reset();
 }
 
 }  // namespace media