Implement basic theming for panel titlebars.

chrome/browser/ui/cocoa/browser_window_utils.h

Index: chrome/browser/ui/cocoa/browser_window_utils.h
diff --git a/chrome/browser/ui/cocoa/browser_window_utils.h b/chrome/browser/ui/cocoa/browser_window_utils.h
index 97d454f5e60dbf4f3b1841a928c38697c36a6612..6f4359f2147d8a8452bba44c24ca102cc5e55480 100644
--- a/chrome/browser/ui/cocoa/browser_window_utils.h
+++ b/chrome/browser/ui/cocoa/browser_window_utils.h
@@ -23,6 +23,17 @@ struct NativeWebKeyboardEvent;
 // NSWindow must be a ChromeEventProcessingWindow.
 + (BOOL)handleKeyboardEvent:(NSEvent*)event
                    inWindow:(NSWindow*)window;
+
+// Work around 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. Delay window
+// title updates until the default run-loop mode.
++ (void)delayedReplace:(NSString*)oldTitle
+                  with:(NSString*)newTitle
+                    on:(NSWindow*)window;
+
++ (NSPoint)themePatternPhaseFor:(NSView*)windowView
+                   withTabStrip:(NSView*)tabStripView;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BROWSER_WINDOW_UTILS_H_