Change the ChromiumPasteboard to have a notion of an alternate clipboard...

chrome/browser/renderer_host/render_widget_host_view.h

 // Copyright (c) 2006-2008 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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 #define CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_
 
 #include "base/gfx/native_widget_types.h"
 #include "base/shared_memory.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 114 matching lines @@
   // Tells the View to destroy itself.
   virtual void Destroy() = 0;
 
   // Tells the View that the tooltip text for the current mouse position over
   // the page has changed.
   virtual void SetTooltipText(const std::wstring& tooltip_text) = 0;
 
   // Notifies the View that the renderer text selection has changed.
   virtual void SelectionChanged(const std::string& text) { };
 
-  // Tells the View to get the text from the selection clipboard and send it
-  // back to the renderer asynchronously.
-  virtual void PasteFromSelectionClipboard() { }
-
   // Tells the View whether the context menu is showing. This is used on Linux
   // to suppress updates to webkit focus for the duration of the show.
   virtual void ShowingContextMenu(bool showing) { }
 
   // Allocate a backing store for this view
   virtual BackingStore* AllocBackingStore(const gfx::Size& size) = 0;
 
 #if defined(OS_MACOSX)
   // Display a native control popup menu for WebKit.
   virtual void ShowPopupWithItems(gfx::Rect bounds,
@@ skipping 38 matching lines @@
 
   // A custom background to paint behind the web content. This will be tiled
   // horizontally. Can be null, in which case we fall back to painting white.
   SkBitmap background_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostView);
 };
 
 #endif  // CHROME_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_H_