Implement basic theming for panel titlebars.

chrome/browser/ui/cocoa/chrome_browser_window.mm

Index: chrome/browser/ui/cocoa/chrome_browser_window.mm
diff --git a/chrome/browser/ui/cocoa/chrome_browser_window.mm b/chrome/browser/ui/cocoa/chrome_browser_window.mm
index e21507bdfc0cea40d36336736fe93efa54983ec4..a6ef49cfa83623cec43d5a9d1c1836b28093ba97 100644
--- a/chrome/browser/ui/cocoa/chrome_browser_window.mm
+++ b/chrome/browser/ui/cocoa/chrome_browser_window.mm
@@ -5,8 +5,6 @@
 #import "chrome/browser/ui/cocoa/chrome_browser_window.h"
 
 #include "base/logging.h"
-#import "chrome/browser/ui/cocoa/themed_window.h"
-#include "ui/base/theme_provider.h"
 
 @implementation ChromeBrowserWindow
 
@@ -28,25 +26,4 @@
     [self setOpaque:YES];
 }
 
-- (ui::ThemeProvider*)themeProvider {
-  id delegate = [self delegate];
-  if (![delegate respondsToSelector:@selector(themeProvider)])
-    return NULL;
-  return [delegate themeProvider];
-}
-
-- (ThemedWindowStyle)themedWindowStyle {
-  id delegate = [self delegate];
-  if (![delegate respondsToSelector:@selector(themedWindowStyle)])
-    return THEMED_NORMAL;
-  return [delegate themedWindowStyle];
-}
-
-- (NSPoint)themePatternPhase {
-  id delegate = [self delegate];
-  if (![delegate respondsToSelector:@selector(themePatternPhase)])
-    return NSMakePoint(0, 0);
-  return [delegate themePatternPhase];
-}
-
 @end