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

chrome/browser/find_bar.h

 // 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.
 //
 // This is an interface for the platform specific FindBar.  It is responsible
 // for drawing the FindBar bar on the platform and is owned by the
 // FindBarController.
 
 #ifndef CHROME_BROWSER_FIND_BAR_H_
 #define CHROME_BROWSER_FIND_BAR_H_
 #pragma once
 
 #include "base/string16.h"
 #include "gfx/rect.h"
 
 class FindBarController;
 class FindBarTesting;
 class FindNotificationDetails;
-class TabContents;
 
 class FindBar {
  public:
   virtual ~FindBar() { }
 
   // Accessor and setter for the FindBarController.
   virtual FindBarController* GetFindBarController() const = 0;
   virtual void SetFindBarController(
       FindBarController* find_bar_controller) = 0;
 
@@ skipping 57 matching lines @@
   // This is used for UI tests of the find bar. If the find bar is not currently
   // shown (return value of false), the out params will be {(0, 0), false}.
   virtual bool GetFindBarWindowInfo(gfx::Point* position,
                                     bool* fully_visible) = 0;
 
   // Gets the search string currently visible in the Find box.
   virtual string16 GetFindText() = 0;
 };
 
 #endif  // CHROME_BROWSER_FIND_BAR_H_