Move creation of content TabContentsViews to content so that we can hide these headers through DEPS…

content/public/browser/web_contents_view_win_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_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_
-#define CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_
-#pragma once
-
-#include "content/common/content_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace gfx {
-class Size;
-}
-
-namespace content {
-
-class WebDragDestDelegate;
-struct ContextMenuParams;
-
-// This interface allows a client to extend the functionality of
-// WebContentsViewWin.
-class CONTENT_EXPORT WebContentsViewWinDelegate {
- public:
-  virtual ~WebContentsViewWinDelegate() {}
-
-  // Returns a delegate to process drags not handled by content.
-  virtual WebDragDestDelegate* GetDragDestDelegate() = 0;
-
-  // These methods allow the embedder to intercept WebContentsViewWin's
-  // implementation of these WebContentsView methods. See the WebContentsView
-  // interface documentation for more information about these methods.
-  virtual void StoreFocus() = 0;
-  virtual void RestoreFocus() = 0;
-  virtual bool Focus() = 0;
-  virtual void TakeFocus(bool reverse) = 0;
-  virtual void ShowContextMenu(const content::ContextMenuParams& params) = 0;
-  virtual void SizeChanged(const gfx::Size& size) = 0;
-};
-
-}  // namespace content
-
-#endif  // CONTENT_PUBLIC_BROWSER_WEB_CONTENTS_VIEW_WIN_DELEGATE_H_