Implement basic theming for panel titlebars.

chrome/browser/ui/panels/panel_window_controller_cocoa.mm

 // 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.
 
 #include "chrome/browser/ui/panels/panel_window_controller_cocoa.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/logging.h"
 #include "base/mac/mac_util.h"
 #include "chrome/app/chrome_command_ids.h"  // IDC_*
 #include "chrome/browser/tabs/tab_strip_model.h"
+#include "chrome/browser/themes/theme_service.h"
+#include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #import "chrome/browser/ui/cocoa/event_utils.h"
 #import "chrome/browser/ui/cocoa/find_bar/find_bar_bridge.h"
 #import "chrome/browser/ui/cocoa/find_bar/find_bar_cocoa_controller.h"
 #include "chrome/browser/ui/panels/panel.h"
 #include "chrome/browser/ui/panels/panel_browser_window_cocoa.h"
 #import "chrome/browser/ui/panels/panel_titlebar_view_cocoa.h"
 #include "chrome/browser/ui/toolbar/encoding_menu_controller.h"
 #include "content/browser/tab_contents/tab_contents.h"
 
 const int kMinimumWindowSize = 1;
 
 @implementation PanelWindowControllerCocoa
 
 - (id)initWithBrowserWindow:(PanelBrowserWindowCocoa*)window {
   NSString* nibpath =
       [base::mac::MainAppBundle() pathForResource:@"Panel" ofType:@"nib"];
   if ((self = [super initWithWindowNibPath:nibpath owner:self]))
     windowShim_.reset(window);
   return self;
 }
 
+- (ui::ThemeProvider*)themeProvider {
+  return ThemeServiceFactory::GetForProfile(windowShim_->browser()->profile());
+}
+
 - (void)awakeFromNib {
   NSWindow* window = [self window];
 
   DCHECK(window);
   DCHECK(titlebar_view_);
   DCHECK_EQ(self, [window delegate]);
 
   // Using NSModalPanelWindowLevel (8) rather then NSStatusWindowLevel (25)
   // ensures notification balloons on top of regular windows, but below
   // popup menus which are at NSPopUpMenuWindowLevel (101) and Spotlight
@@ skipping 161 matching lines @@
 // When windowShouldClose returns YES (or if controller receives direct 'close'
 // signal), window will be unconditionally closed. Clean up.
 - (void)windowWillClose:(NSNotification*)notification {
   DCHECK(windowShim_->browser()->tabstrip_model()->empty());
 
   windowShim_->didCloseNativeWindow();
   [self autorelease];
 }
 
 @end