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

chrome/browser/ui/cocoa/bookmarks/bookmark_bar_folder_controller.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_BOOKMARKS_BOOKMARK_BAR_FOLDER_CONTROLLER_H_
 #define CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BAR_FOLDER_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/memory/scoped_nsobject.h"
 #import "chrome/browser/ui/cocoa/bookmarks/bookmark_button.h"
-#import "chrome/browser/ui/cocoa/tracking_area.h"
+#import "ui/base/cocoa/tracking_area.h"
 
 @class BookmarkBarController;
 @class BookmarkBarFolderView;
 @class BookmarkBarFolderHoverState;
 @class BookmarkBarFolderWindow;
 @class BookmarkBarFolderWindowContentView;
 @class BookmarkFolderTarget;
 
 // A controller for the pop-up windows from bookmark folder buttons
 // which look sort of like menus.
@@ skipping 82 matching lines @@
   // Logic for dealing with a click on a bookmark folder button.
   scoped_nsobject<BookmarkFolderTarget> folderTarget_;
 
   // A controller for a pop-up bookmark folder window (custom menu).
   // We (self) are the parentController_ for our folderController_.
   // This is not a scoped_nsobject because it owns itself (when its
   // window closes the controller gets autoreleased).
   BookmarkBarFolderController* folderController_;
 
   // Implement basic menu scrolling through this tracking area.
-  ScopedCrTrackingArea scrollTrackingArea_;
+  ui::ScopedCrTrackingArea scrollTrackingArea_;
 
   // Timer to continue scrolling as needed.  We own the timer but
   // don't release it when done (we invalidate it).
   NSTimer* scrollTimer_;
 
   // Precalculated sum of left and right edge padding of buttons in a
   // folder menu window. This is calculated from the widths of the main
   // folder menu window and the scroll view within.
   CGFloat padding_;
 
@@ skipping 73 matching lines @@
 - (BOOL)canScrollDown;
 - (CGFloat)verticalScrollArrowHeight;
 - (NSView*)visibleView;
 - (NSScrollView*)scrollView;
 - (NSView*)folderView;
 
 - (BookmarkButton*)buttonForDroppingOnAtPoint:(NSPoint)point;
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_BOOKMARKS_BOOKMARK_BAR_FOLDER_CONTROLLER_H_