Move CrTrackingArea from chrome/browser/ui/cocoa to ui/base/cocoa.

chrome/browser/ui/cocoa/panels/panel_titlebar_view_cocoa.h

 // Copyright (c) 2012 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_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_
 
 #import <Cocoa/Cocoa.h>
 
 #import "chrome/browser/ui/cocoa/panels/mouse_drag_controller.h"
-#import "chrome/browser/ui/cocoa/tracking_area.h"
+#import "ui/base/cocoa/tracking_area.h"
 
-@class CrTrackingArea;
 @class HoverImageButton;
 @class MouseDragController;
 @class PanelWindowControllerCocoa;
 
 // A class that works as a custom titlebar for Panels. It is placed on top of
 // the regular Cocoa titlebar. It's the place for the close button, page
 // favicon, title label and a button to minimize/restore the panel.
 // It also facilitates dragging and minimization of the panels, and changes
 // color as 'new activity' indicator.
 // One way to have custom titlebar would be to use NSBorderlessWindow,
@@ skipping 27 matching lines @@
   IBOutlet NSView* icon_;
   IBOutlet NSTextField* title_;
   IBOutlet HoverImageButton* minimizeButton_;
   IBOutlet HoverImageButton* restoreButton_;
   IBOutlet HoverImageButton* customCloseButton_;
   // Transparent view on top of entire titlebar. It catches mouse events to
   // prevent window activation by the system on mouseDown.
   IBOutlet NSView* overlay_;
   NSButton* closeButton_;  // Created explicitly, not from NIB. Weak, destroyed
                            // when view is destroyed, as a subview.
-  ScopedCrTrackingArea closeButtonTrackingArea_;
+  ui::ScopedCrTrackingArea closeButtonTrackingArea_;
   BOOL isDrawingAttention_;
 
   // "Glint" animation is used in "Draw Attention" mode.
   scoped_nsobject<RepaintAnimation> glintAnimation_;
   scoped_nsobject<NSTimer> glintAnimationTimer_;
   int glintCounter_;
 
   // Drag support.
   scoped_nsobject<MouseDragController> dragController_;
 }
@@ skipping 51 matching lines @@
 - (void)pressLeftMouseButtonTitlebar:(NSPoint)mouseLocation
                            modifiers:(int)modifierFlags;
 - (void)releaseLeftMouseButtonTitlebar:(int)modifierFlags;
 - (void)dragTitlebar:(NSPoint)mouseLocation;
 - (void)cancelDragTitlebar;
 - (void)finishDragTitlebar;
 
 @end  // @interface PanelTitlebarViewCocoa(TestingAPI)
 
 #endif  // CHROME_BROWSER_UI_COCOA_PANELS_PANEL_TITLEBAR_VIEW_COCOA_H_