<webview>: Make contentWindow available prior to attachment (on display:none).

content/public/browser/guest_sizer.h

-// Copyright 2014 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.
-
-// This module provides class that serves as a public interface for a
-// derived object that can size a guest.
-
-// This class currently only serves as a base class for BrowserPluginGuest, and
-// its API can only be accessed by a BrowserPluginGuestDelegate. This module
-// will go away once the migration to RenderFrame architecture has completed
-// (http://crbug.com/330264).
-
-#ifndef CONTENT_PUBLIC_BROWSER_GUEST_SIZER_H_
-#define CONTENT_PUBLIC_BROWSER_GUEST_SIZER_H_
-
-#include "ui/gfx/geometry/size.h"
-
-namespace content {
-
-class GuestSizer {
- public:
-  virtual void SizeContents(const gfx::Size& new_size) = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_BROWSER_GUEST_SIZER_H_