Revert of Remove about:srcdoc url conversion.

content/browser/web_contents/web_contents_impl.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_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_
 
 #include <stdint.h>
 
 #include <functional>
@@ skipping 552 matching lines @@
   bool HideDownloadUI() const override;
 
   // NavigatorDelegate ---------------------------------------------------------
 
   void DidStartNavigation(NavigationHandle* navigation_handle) override;
   void DidRedirectNavigation(NavigationHandle* navigation_handle) override;
   void ReadyToCommitNavigation(NavigationHandle* navigation_handle) override;
   void DidFinishNavigation(NavigationHandle* navigation_handle) override;
   void DidStartProvisionalLoad(RenderFrameHostImpl* render_frame_host,
                                const GURL& validated_url,
-                               bool is_error_page) override;
+                               bool is_error_page,
+                               bool is_iframe_srcdoc) override;
   void DidFailProvisionalLoadWithError(RenderFrameHostImpl* render_frame_host,
                                        const GURL& validated_url,
                                        int error_code,
                                        const base::string16& error_description,
                                        bool was_ignored_by_handler) override;
   void DidFailLoadWithError(RenderFrameHostImpl* render_frame_host,
                             const GURL& url,
                             int error_code,
                             const base::string16& error_description,
                             bool was_ignored_by_handler) override;
@@ skipping 905 matching lines @@
   // Adds/removes a callback called on creation of each new WebContents.
   static void AddCreatedCallbackForTesting(const CreatedCallback& callback);
   static void RemoveCreatedCallbackForTesting(const CreatedCallback& callback);
 
   DISALLOW_COPY_AND_ASSIGN(FriendZone);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_