Fix copying from interstitial pages on OSX by going through the RenderWidgetHostDelegate.

content/browser/renderer_host/render_widget_host_delegate.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_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "build/build_config.h"
 #include "content/common/content_export.h"
@@ skipping 57 matching lines @@
   virtual void DidSendScreenRects(RenderWidgetHostImpl* rwh) {}
 
   // Get the root BrowserAccessibilityManager for this frame tree.
   virtual BrowserAccessibilityManager* GetRootBrowserAccessibilityManager();
 
   // Get the root BrowserAccessibilityManager for this frame tree,
   // or create it if it doesn't exist.
   virtual BrowserAccessibilityManager*
       GetOrCreateRootBrowserAccessibilityManager();
 
+  // Send the OS Undo action to the focused frame.
+  virtual void Undo();
+
+  // Send the OS Redo action to the focused frame.
+  virtual void Redo();
+
+  // Send the OS Cut action to the focused frame.
+  virtual void Cut();
+
+  // Send the OS Copy action to the focused frame.
+  virtual void Copy();
+
+  // Send the OS CopyToFindPboard action to the focused frame.
+  virtual void CopyToFindPboard();
+
+  // Send the OS Paste action to the focused frame.
+  virtual void Paste();
+
+  // Send the OS PasteAndMatchStyle action to the focused frame.
+  virtual void PasteAndMatchStyle();
+
+  // Send the OS SelectAll action to the focused frame.
+  virtual void SelectAll();
+
 #if defined(OS_WIN)
   virtual gfx::NativeViewAccessible GetParentNativeViewAccessible();
 #endif
 
  protected:
   virtual ~RenderWidgetHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_DELEGATE_H_