[Mac] Remove flicker when typing in the findbar....

chrome/browser/cocoa/find_bar_cocoa_controller.h

 // Copyright (c) 2009 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.
 
 #import <Cocoa/Cocoa.h>
 
 #import "chrome/browser/cocoa/find_bar_cocoa_controller.h"
 
 #include "base/scoped_nsobject.h"
 #include "base/string16.h"
@@ skipping 21 matching lines @@
   FindBarBridge* findBarBridge_;  // weak
 
   scoped_nsobject<FocusTracker> focusTracker_;
 
   // The currently-running animation.  This is defined to be non-nil if an
   // animation is running, and is always nil otherwise.  The
   // FindBarCocoaController should not be deallocated while an animation is
   // running (stopAnimation is currently called before the last tab in a
   // window is removed).
   scoped_nsobject<NSViewAnimation> currentAnimation_;
+
+  // If YES, do nothing as a result of find pasteboard update notifications.
+  BOOL suppressPboardUpdateActions_;
 };
 
 // Initializes a new FindBarCocoaController.
 - (id)init;
 
 - (void)setFindBarBridge:(FindBarBridge*)findBar;
 
 - (IBAction)close:(id)sender;
 
 - (IBAction)nextResult:(id)sender;
@@ skipping 11 matching lines @@
 - (void)setFocusAndSelection;
 - (void)restoreSavedFocus;
 - (void)setFindText:(NSString*)findText;
 
 - (void)clearResults:(const FindNotificationDetails&)results;
 - (void)updateUIForFindResult:(const FindNotificationDetails&)results
                      withText:(const string16&)findText;
 - (BOOL)isFindBarVisible;
 
 @end