Separate out the TtsController interface from it's impl

chrome/browser/speech/tts_controller_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.
 
 // Unit tests for the TTS Controller.
 
 #include "base/values.h"
-#include "chrome/browser/speech/tts_controller.h"
+#include "chrome/browser/speech/tts_controller_impl.h"
 #include "chrome/browser/speech/tts_platform.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 class TtsApiControllerTest : public testing::Test {
 };
 
 // Platform Tts implementation that does nothing.
 class DummyTtsPlatformImpl : public TtsPlatformImpl {
  public:
   DummyTtsPlatformImpl() {}
@@ skipping 11 matching lines @@
   virtual bool StopSpeaking() OVERRIDE { return true; }
   virtual void Pause() OVERRIDE {}
   virtual void Resume() OVERRIDE {}
   virtual void GetVoices(std::vector<VoiceData>* out_voices) OVERRIDE {}
   virtual std::string error() OVERRIDE { return std::string(); }
   virtual void clear_error() OVERRIDE {}
   virtual void set_error(const std::string& error) OVERRIDE {}
 };
 
 // Subclass of TtsController with a public ctor and dtor.
-class TestableTtsController : public TtsController {
+class TestableTtsController : public TtsControllerImpl {
  public:
   TestableTtsController() {}
   virtual ~TestableTtsController() {}
 };
 
 TEST_F(TtsApiControllerTest, TestTtsControllerShutdown) {
   DummyTtsPlatformImpl platform_impl;
   TestableTtsController* controller =
       new TestableTtsController();
   controller->SetPlatformImpl(&platform_impl);
 
   Utterance* utterance1 = new Utterance(NULL);
   utterance1->set_can_enqueue(true);
   utterance1->set_src_id(1);
   controller->SpeakOrEnqueue(utterance1);
 
   Utterance* utterance2 = new Utterance(NULL);
   utterance2->set_can_enqueue(true);
   utterance2->set_src_id(2);
   controller->SpeakOrEnqueue(utterance2);
 
   // Make sure that deleting the controller when there are pending
   // utterances doesn't cause a crash.
   delete controller;
 }