Extract minimal RenderViewHost interface for embedders, leaving

chrome/browser/ui/views/tab_contents/native_tab_contents_view_aura.cc

 // 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.
 
 #include "chrome/browser/ui/views/tab_contents/native_tab_contents_view_aura.h"
 
 // TODO(beng): USE_ASH
 #include "ash/shell.h"
 #include "ash/wm/visibility_controller.h"
 #include "base/event_types.h"
@@ skipping 40 matching lines @@
   }
   virtual void DidProcessEvent(const base::NativeEvent& event) OVERRIDE {
     ui::EventType type = ui::EventTypeFromNative(event);
     RenderViewHost* rvh = NULL;
     switch (type) {
       case ui::ET_MOUSE_DRAGGED:
         rvh = view_->GetWebContents()->GetRenderViewHost();
         if (rvh) {
           gfx::Point screen_loc = ui::EventLocationFromNative(event);
           gfx::Point client_loc = screen_loc;
-          aura::Window* window = rvh->view()->GetNativeView();
+          aura::Window* window = rvh->GetView()->GetNativeView();
           aura::Window::ConvertPointToWindow(ash::Shell::GetRootWindow(),
               window, &client_loc);
           rvh->DragSourceMovedTo(client_loc.x(), client_loc.y(),
               screen_loc.x(), screen_loc.y());
         }
         break;
       default:
         break;
     }
   }
@@ skipping 240 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeTabContentsViewAura, private:
 
 void NativeTabContentsViewAura::EndDrag(WebKit::WebDragOperationsMask ops) {
   gfx::Point screen_loc =
       ash::Shell::GetRootWindow()->last_mouse_location();
   gfx::Point client_loc = screen_loc;
   RenderViewHost* rvh = GetWebContents()->GetRenderViewHost();
-  aura::Window* window = rvh->view()->GetNativeView();
+  aura::Window* window = rvh->GetView()->GetNativeView();
   aura::Window::ConvertPointToWindow(ash::Shell::GetRootWindow(),
       window, &client_loc);
   rvh->DragSourceEndedAt(client_loc.x(), client_loc.y(), screen_loc.x(),
       screen_loc.y(), ops);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // NativeTabContentsView, public:
 
 // static
 NativeTabContentsView* NativeTabContentsView::CreateNativeTabContentsView(
     internal::NativeTabContentsViewDelegate* delegate) {
   return new NativeTabContentsViewAura(delegate);
 }