Eliminate the dependency of Profile from TtsMessageFilter.

chrome/browser/speech/tts_message_filter.h

Index: chrome/browser/speech/tts_message_filter.h
diff --git a/chrome/browser/speech/tts_message_filter.h b/chrome/browser/speech/tts_message_filter.h
index 154f4827139986202f9f656f46f3bef3f2e70b8a..2d59c9f60c3ac992e53f502c0123b3c900b43d7d 100644
--- a/chrome/browser/speech/tts_message_filter.h
+++ b/chrome/browser/speech/tts_message_filter.h
@@ -10,15 +10,13 @@
 #include "chrome/common/tts_messages.h"
 #include "content/public/browser/browser_message_filter.h"
 
-class Profile;
-
 class TtsMessageFilter
     : public content::BrowserMessageFilter,
       public UtteranceEventDelegate,
       public VoicesChangedDelegate,
       public base::SupportsWeakPtr<TtsMessageFilter> {
  public:
-  TtsMessageFilter(int render_process_id, Profile* profile);
+  explicit TtsMessageFilter(int render_process_id);
 
   // content::BrowserMessageFilter implementation.
   virtual void OverrideThreadForMessage(
@@ -52,7 +50,6 @@ class TtsMessageFilter
   void OnChannelClosingInUIThread();
 
   int render_process_id_;
-  Profile* profile_;
 
   DISALLOW_COPY_AND_ASSIGN(TtsMessageFilter);
 };