[mac] Implement {frame: 'none'} app window on Mac.

content/browser/web_contents/web_contents_view_mac.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 CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include <string>
@@ skipping 19 matching lines @@
 
 namespace gfx {
 class Point;
 }
 
 @interface WebContentsViewCocoa : BaseView {
  @private
   WebContentsViewMac* webContentsView_;  // WEAK; owns us
   scoped_nsobject<WebDragSource> dragSource_;
   scoped_nsobject<WebDragDest> dragDest_;
+  BOOL mouseDownCanMoveWindow_;
 }
 
+- (void)setMouseDownCanMoveWindow:(BOOL)canMove;
+
 // Expose this, since sometimes one needs both the NSView and the
 // WebContentsImpl.
 - (WebContentsImpl*)webContents;
 @end
 
 // Mac-specific implementation of the WebContentsView. It owns an NSView that
 // contains all of the contents of the tab and associated child views.
 class WebContentsViewMac
     : public content::WebContentsView,
       public content::RenderViewHostDelegateView {
@@ skipping 66 matching lines @@
   // focus returns.
   scoped_nsobject<FocusTracker> focus_tracker_;
 
   // Our optional delegate.
   scoped_ptr<content::WebContentsViewDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewMac);
 };
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_MAC_H_