Switch content tests to use BrowserThreadImpl directly.

content/browser/speech/speech_recognizer_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 <vector>
 
+#include "content/browser/browser_thread_impl.h"
 #include "content/browser/speech/speech_recognizer.h"
-#include "content/test/test_browser_thread.h"
 #include "content/test/test_url_fetcher_factory.h"
 #include "media/audio/test_audio_input_controller_factory.h"
 #include "net/base/net_errors.h"
 #include "net/url_request/url_request_status.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using content::BrowserThreadImpl;
+
 using media::AudioInputController;
 using media::TestAudioInputController;
 using media::TestAudioInputControllerFactory;
 
 namespace speech_input {
 
 class SpeechRecognizerTest : public SpeechRecognizerDelegate,
                              public testing::Test {
  public:
   SpeechRecognizerTest()
@@ skipping 74 matching lines @@
     int value = 0;
     int factor = 175;
     for (size_t i = 0; i < audio_packet_.size(); ++i) {
       value += factor;
       audio_packet_[i] = value % 100;
     }
   }
 
  protected:
   MessageLoopForIO message_loop_;
-  content::TestBrowserThread io_thread_;
+  BrowserThreadImpl io_thread_;
   scoped_refptr<SpeechRecognizer> recognizer_;
   bool recording_complete_;
   bool recognition_complete_;
   bool result_received_;
   bool audio_received_;
   SpeechInputError error_;
   TestURLFetcherFactory url_fetcher_factory_;
   TestAudioInputControllerFactory audio_input_controller_factory_;
   std::vector<uint8> audio_packet_;
   float volume_;
@@ skipping 288 matching lines @@
   EXPECT_FLOAT_EQ(0.89926866f, volume_);
   EXPECT_FLOAT_EQ(0.75071919f, noise_volume_);
 
   EXPECT_EQ(kErrorNone, error_);
   EXPECT_FALSE(recording_complete_);
   EXPECT_FALSE(recognition_complete_);
   recognizer_->CancelRecognition();
 }
 
 }  // namespace speech_input