Remove WebContents methods that duplicate WebContentsView methods.

chrome/browser/ui/views/extensions/native_app_window_views.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/extensions/native_app_window_views.h"
 
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/favicon/favicon_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 309 matching lines @@
       // Don't round the top corners in chrome-style frame mode.
       path.moveTo(0, 0);
       path.lineTo(width, 0);
     }
     path.lineTo(width, height - radius - 1);
     path.lineTo(width - radius - 1, height);
     path.lineTo(radius + 1, height);
     path.lineTo(0, height - radius - 1);
     path.close();
   }
-  SetWindowRgn(web_contents()->GetNativeView(), path.CreateNativeRegion(), 1);
+  SetWindowRgn(web_contents()->GetView()->GetNativeView(),
+               path.CreateNativeRegion(), 1);
 
   SkRegion* rgn = new SkRegion;
   if (!window_->IsFullscreen()) {
     if (draggable_region())
       rgn->op(*draggable_region(), SkRegion::kUnion_Op);
     if (!window_->IsMaximized()) {
       if (frameless_)
         rgn->op(0, 0, width, kResizeInsideBoundsSize, SkRegion::kUnion_Op);
       rgn->op(0, 0, kResizeInsideBoundsSize, height, SkRegion::kUnion_Op);
       rgn->op(width - kResizeInsideBoundsSize, 0, width, height,
@@ skipping 244 matching lines @@
 }
 
 //------------------------------------------------------------------------------
 // NativeAppWindow::Create
 
 // static
 NativeAppWindow* NativeAppWindow::Create(
     ShellWindow* shell_window, const ShellWindow::CreateParams& params) {
   return new NativeAppWindowViews(shell_window, params);
 }