Use enum instead of string in MessageLoopFactory::GetMessageLoop*

media/base/pipeline_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 <vector>
 
 #include "base/bind.h"
 #include "base/message_loop.h"
 #include "base/stl_util.h"
 #include "base/threading/simple_thread.h"
@@ skipping 74 matching lines @@
 
 // TODO(scherkus): even though some filters are initialized on separate
 // threads these test aren't flaky... why?  It's because filters' Initialize()
 // is executed on |message_loop_| and the mock filters instantly call
 // InitializationComplete(), which keeps the pipeline humming along.  If
 // either filters don't call InitializationComplete() immediately or filter
 // initialization is moved to a separate thread this test will become flaky.
 class PipelineTest : public ::testing::Test {
  public:
   PipelineTest()
-      : pipeline_(new Pipeline(&message_loop_, new MediaLog())) {
+      : pipeline_(new Pipeline(message_loop_.message_loop_proxy(),
+                               new MediaLog())) {
     mocks_.reset(new MockFilterCollection());
 
     // InitializeDemuxer() adds overriding expectations for expected non-NULL
     // streams.
     DemuxerStream* null_pointer = NULL;
     EXPECT_CALL(*mocks_->demuxer(), GetStream(_))
         .WillRepeatedly(Return(null_pointer));
 
     EXPECT_CALL(*mocks_->demuxer(), GetStartTime())
         .WillRepeatedly(Return(base::TimeDelta()));
@@ skipping 1189 matching lines @@
 INSTANTIATE_TEARDOWN_TEST(Error, InitAudioRenderer);
 INSTANTIATE_TEARDOWN_TEST(Error, InitVideoRenderer);
 INSTANTIATE_TEARDOWN_TEST(Error, Pausing);
 INSTANTIATE_TEARDOWN_TEST(Error, Flushing);
 INSTANTIATE_TEARDOWN_TEST(Error, Seeking);
 INSTANTIATE_TEARDOWN_TEST(Error, Prerolling);
 INSTANTIATE_TEARDOWN_TEST(Error, Starting);
 INSTANTIATE_TEARDOWN_TEST(Error, Playing);
 
 }  // namespace media