Salient parts of http://codereview.chromium.org/8392042/

content/browser/renderer_host/media/audio_renderer_host_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/bind.h"
 #include "base/environment.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/process_util.h"
 #include "base/sync_socket.h"
-#include "content/browser/browser_thread.h"
 #include "content/browser/mock_resource_context.h"
 #include "content/browser/renderer_host/media/audio_renderer_host.h"
 #include "content/browser/renderer_host/media/mock_media_observer.h"
 #include "content/common/media/audio_messages.h"
+#include "content/test/test_browser_thread.h"
 #include "ipc/ipc_message_utils.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/fake_audio_output_stream.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::AtLeast;
 using ::testing::DoAll;
 using ::testing::InSequence;
@@ skipping 142 matching lines @@
   AudioRendererHostTest()
       : mock_stream_(true) {
   }
 
  protected:
   virtual void SetUp() {
     // Create a message loop so AudioRendererHost can use it.
     message_loop_.reset(new MessageLoop(MessageLoop::TYPE_IO));
 
     // Claim to be on both the UI and IO threads to pass all the DCHECKS.
-    io_thread_.reset(new BrowserThread(BrowserThread::IO, message_loop_.get()));
-    ui_thread_.reset(new BrowserThread(BrowserThread::UI, message_loop_.get()));
+    io_thread_.reset(new content::TestBrowserThread(BrowserThread::IO,
+                                                    message_loop_.get()));
+    ui_thread_.reset(new content::TestBrowserThread(BrowserThread::UI,
+                                                    message_loop_.get()));
 
     observer_.reset(new MockMediaObserver());
     content::MockResourceContext* context =
         content::MockResourceContext::GetInstance();
     context->set_media_observer(observer_.get());
     host_ = new MockAudioRendererHost(context);
 
     // Simulate IPC channel connected.
     host_->OnChannelConnected(base::GetCurrentProcId());
   }
@@ skipping 160 matching lines @@
 
   MessageLoop* message_loop() { return message_loop_.get(); }
   MockAudioRendererHost* host() { return host_; }
   void EnableRealDevice() { mock_stream_ = false; }
 
  private:
   bool mock_stream_;
   scoped_ptr<MockMediaObserver> observer_;
   scoped_refptr<MockAudioRendererHost> host_;
   scoped_ptr<MessageLoop> message_loop_;
-  scoped_ptr<BrowserThread> io_thread_;
-  scoped_ptr<BrowserThread> ui_thread_;
+  scoped_ptr<content::TestBrowserThread> io_thread_;
+  scoped_ptr<content::TestBrowserThread> ui_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioRendererHostTest);
 };
 
 TEST_F(AudioRendererHostTest, CreateAndClose) {
   if (!IsRunningHeadless())
     EnableRealDevice();
 
   Create();
   Close();
@@ skipping 120 matching lines @@
 
 // Simulate the case where a stream is not properly closed.
 TEST_F(AudioRendererHostTest, CreateLowLatencyAndShutdown) {
   if (!IsRunningHeadless())
     EnableRealDevice();
 
   CreateLowLatency();
 }
 
 // TODO(hclam): Add tests for data conversation in low latency mode.