Eliminate the dependency of Profile from TtsMessageFilter.

chrome/browser/speech/tts_controller_impl.cc

 // Copyright 2014 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_controller_impl.h"
 
 #include <string>
 #include <vector>
 
 #include "base/float_util.h"
@@ skipping 98 matching lines @@
 //
 // TtsControllerImpl
 //
 
 // static
 TtsControllerImpl* TtsControllerImpl::GetInstance() {
   return Singleton<TtsControllerImpl>::get();
 }
 
 TtsControllerImpl::TtsControllerImpl()
-    : current_utterance_(NULL),
+    : current_utterance_(0),

[mrunal, 2014/08/11 23:25:07]

Looking at this, I might have mistakenly pushed this unnecessary change from
other branch. I will revert this.

       paused_(false),
       platform_impl_(NULL),
       tts_engine_delegate_(NULL) {
 }
 
 TtsControllerImpl::~TtsControllerImpl() {
   if (current_utterance_) {
     current_utterance_->Finish();
     delete current_utterance_;
   }
@@ skipping 324 matching lines @@
 }
 
 void TtsControllerImpl::SetTtsEngineDelegate(
     TtsEngineDelegate* delegate) {
   tts_engine_delegate_ = delegate;
 }
 
 TtsEngineDelegate* TtsControllerImpl::GetTtsEngineDelegate() {
   return tts_engine_delegate_;
 }