Implement basic theming for panel titlebars.

chrome/browser/ui/cocoa/browser_window_utils.h

 // Copyright (c) 2011 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_UI_COCOA_BROWSER_WINDOW_UTILS_H_
 #define CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_
 #pragma once
 
 #import <Cocoa/Cocoa.h>
 
 class Browser;
 struct NativeWebKeyboardEvent;
 
 @interface BrowserWindowUtils : NSObject
 
 // Returns YES if keyboard event should be handled.
 + (BOOL)shouldHandleKeyboardEvent:(const NativeWebKeyboardEvent&)event;
 
 // Determines the command associated with the keyboard event.
 // Returns -1 if no command found.
 + (int)getCommandId:(const NativeWebKeyboardEvent&)event;
 
 // NSWindow must be a ChromeEventProcessingWindow.
 + (BOOL)handleKeyboardEvent:(NSEvent*)event
                    inWindow:(NSWindow*)window;
+
+// Schedule a window title change in the next run loop iteration. This works
+// around a Cocoa bug: if a window changes title during the tracking of the
+// Window menu it doesn't display well and the constant re-sorting of the list
+// makes it difficult for the user to pick the desired window.
+// Passing in a non-nil oldTitle will also cancel any pending title changes with
+// a matching window and title. This function returns a NSString* that can be
+// passed in future calls as oldTitle.
++ (NSString*)scheduleReplaceOldTitle:(NSString*)oldTitle
+                        withNewTitle:(NSString*)newTitle
+                           forWindow:(NSWindow*)window;
+
++ (NSPoint)themePatternPhaseFor:(NSView*)windowView
+                   withTabStrip:(NSView*)tabStripView;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_