Mac: Make it easier for views to correctly draw with a theme.

chrome/browser/ui/cocoa/tabs/tab_view.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_TABS_TAB_VIEW_H_
 #define CHROME_BROWSER_UI_COCOA_TABS_TAB_VIEW_H_
 
 #include <ApplicationServices/ApplicationServices.h>
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/hover_close_button.h"
+#import "chrome/browser/ui/cocoa/themed_window.h"
 
 namespace tabs {
 
 // Nomenclature:
 // Tabs _glow_ under two different circumstances, when they are _hovered_ (by
 // the mouse) and when they are _alerted_ (to show that the tab's title has
 // changed).
 
 // The state of alerting (to show a title change on an unselected, pinned tab).
 // This is more complicated than a simple on/off since we want to allow the
@@ skipping 11 matching lines @@
 const CGFloat kImageNoFocusAlpha = 0.65;
 
 }  // namespace tabs
 
 @class TabController, TabWindowController, GTMFadeTruncatingTextFieldCell;
 
 // A view that handles the event tracking (clicking and dragging) for a tab
 // on the tab strip. Relies on an associated TabController to provide a
 // target/action for selecting the tab.
 
-@interface TabView : NSView {
+@interface TabView : NSView<ThemedWindowDrawing> {
  @private
   TabController* controller_;
   base::scoped_nsobject<NSTextField> titleView_;
   GTMFadeTruncatingTextFieldCell* titleViewCell_;  // weak
 
   // TODO(rohitrao): Add this button to a CoreAnimation layer so we can fade it
   // in and out on mouseovers.
   HoverCloseButton* closeButton_;  // Weak.
 
   BOOL closing_;
@@ skipping 72 matching lines @@
 
 // The TabController |controller_| is not the only owner of this view. If the
 // controller is released before this view, then we could be hanging onto a
 // garbage pointer. To prevent this, the TabController uses this interface to
 // clear the |controller_| pointer when it is dying.
 @interface TabView (TabControllerInterface)
 - (void)setController:(TabController*)controller;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_TABS_TAB_VIEW_H_