[Sheriff] Revert "Revert "Revert 266297 "1. Handle the case of empty embedder_extension_id..."""

chrome/browser/guest_view/ad_view/ad_view_guest.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.
-
-#ifndef CHROME_BROWSER_GUEST_VIEW_AD_VIEW_AD_VIEW_GUEST_H_
-#define CHROME_BROWSER_GUEST_VIEW_AD_VIEW_AD_VIEW_GUEST_H_
-
-#include "base/values.h"
-#include "chrome/browser/guest_view/guest_view.h"
-#include "content/public/browser/web_contents_observer.h"
-
-// An AdViewGuest is a WebContentsObserver on the guest WebContents of a
-// <adview> tag. It provides the browser-side implementation of the <adview>
-// API and manages the lifetime of <adview> extension events. AdViewGuest is
-// created on attachment. When a guest WebContents is associated with
-// a particular embedder WebContents, we call this "attachment".
-// TODO(fsamuel): There might be an opportunity here to refactor and reuse code
-// between AdViewGuest and WebViewGuest.
-class AdViewGuest : public GuestView<AdViewGuest>,
-                    public content::WebContentsObserver {
- public:
-  AdViewGuest(content::WebContents* guest_web_contents,
-              const std::string& extension_id);
-
-  static const char Type[];
-
- private:
-  virtual ~AdViewGuest();
-
-  virtual void DidCommitProvisionalLoadForFrame(
-      int64 frame_id,
-      const base::string16& frame_unique_name,
-      bool is_main_frame,
-      const GURL& url,
-      content::PageTransition transition_type,
-      content::RenderViewHost* render_view_host) OVERRIDE;
-  virtual void DidFailProvisionalLoad(
-      int64 frame_id,
-      const base::string16& frame_unique_name,
-      bool is_main_frame,
-      const GURL& validated_url,
-      int error_code,
-      const base::string16& error_description,
-      content::RenderViewHost* render_view_host) OVERRIDE;
-
-  DISALLOW_COPY_AND_ASSIGN(AdViewGuest);
-};
-
-#endif  // CHROME_BROWSER_GUEST_VIEW_AD_VIEW_AD_VIEW_GUEST_H_