Delete obviously unneeded forward declarations in chrome/browser/*.h.

chrome/browser/jsmessage_box_client.h

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_JSMESSAGE_BOX_CLIENT_H_
 #define CHROME_BROWSER_JSMESSAGE_BOX_CLIENT_H_
 #pragma once
 
 // JavaScriptMessageBoxClient
 //
 // An interface implemented by an object that receives results from JavaScript
 // message boxes (alert, confirm, and prompt).
 //
 
 #include <string>
 
 #include "gfx/native_widget_types.h"
 
 class ExtensionHost;
 class GURL;
-class Profile;
 class TabContents;
 namespace IPC {
 class Message;
 }
 
 class JavaScriptMessageBoxClient {
  public:
   virtual ~JavaScriptMessageBoxClient() {}
 
   // Returns the title to use for the message box.
@@ skipping 13 matching lines @@
 
   // Returns the TabContents or ExtensionHost associated with this message
   // box -- in practice, the object implementing this interface. Exactly one of
   // these must be non-NULL; behavior is undefined (read: it'll probably crash)
   // if that is not the case.
   virtual TabContents* AsTabContents() = 0;
   virtual ExtensionHost* AsExtensionHost() = 0;
 };
 
 #endif  // CHROME_BROWSER_JSMESSAGE_BOX_CLIENT_H_