Allow dragging text/url content out of the browser. Dragging back in not yet ...

chrome/browser/tab_contents/tab_contents_view_mac.h

 // Copyright (c) 2009 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_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 #define CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/gfx/size.h"
@@ skipping 56 matching lines @@
   virtual void TakeFocus(bool reverse);
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event);
 
   // NotificationObserver implementation ---------------------------------------
 
   virtual void Observe(NotificationType type,
                        const NotificationSource& source,
                        const NotificationDetails& details);
 
  private:
-  // ---------------------------------------------------------------------------
+  // Returns a drag pasteboard filled with the appropriate data. The types are
+  // populated in decending order of richness.
+  NSPasteboard* FillDragData(const WebDropData& drop_data);
 
   // The Cocoa NSView that lives in the view hierarchy.
   scoped_nsobject<TabContentsViewCocoa> cocoa_view_;
 
   // The Cocoa NSView to restore the focus to when focus returns.
   scoped_nsobject<NSView> latent_focus_view_;
 
   // Used to get notifications about renderers coming and going.
   NotificationRegistrar registrar_;
 
   // Used to render the sad tab. This will be non-NULL only when the sad tab is
   // visible.
   scoped_nsobject<SadTabView> sad_tab_;
 
   // The page content's intrinsic width.
   int preferred_width_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContentsViewMac);
 };
 
 #endif  // CHROME_BROWSER_TAB_CONTENTS_TAB_CONTENTS_VIEW_MAC_H_