Eliminate the dependency of Profile from TtsMessageFilter.

chrome/browser/speech/tts_chromeos.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 "chrome/browser/speech/tts_platform.h"
 
 // Chrome OS doesn't have native TTS, instead it includes a built-in
 // component extension that provides speech synthesis. This class includes
 // an implementation of LoadBuiltInTtsExtension and dummy implementations of
 // everything else.
 
-class Profile;
-
 class TtsPlatformImplChromeOs : public TtsPlatformImpl {
  public:
   // TtsPlatformImpl overrides:
   virtual bool PlatformImplAvailable() OVERRIDE {
     return false;
   }
 
-  virtual bool LoadBuiltInTtsExtension(Profile* profile) OVERRIDE {
+  virtual bool LoadBuiltInTtsExtension(
+      BrowserContext* browser_context) OVERRIDE {
     TtsEngineDelegate* tts_engine_delegate =
         TtsController::GetInstance()->GetTtsEngineDelegate();
     if (tts_engine_delegate)
-      return tts_engine_delegate->LoadBuiltInTtsExtension(profile);
+      return tts_engine_delegate->LoadBuiltInTtsExtension(browser_context);
     return false;
   }
 
   virtual bool Speak(
       int utterance_id,
       const std::string& utterance,
       const std::string& lang,
       const VoiceData& voice,
       const UtteranceContinuousParameters& params) OVERRIDE {
     return false;
@@ skipping 29 matching lines @@
 // static
 TtsPlatformImpl* TtsPlatformImpl::GetInstance() {
   return TtsPlatformImplChromeOs::GetInstance();
 }
 
 // static
 TtsPlatformImplChromeOs*
 TtsPlatformImplChromeOs::GetInstance() {
   return Singleton<TtsPlatformImplChromeOs>::get();
 }