Make rendering timeouts work even if paint data received early

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 <map>
 #include <set>
 #include <string>
@@ skipping 869 matching lines @@
 
   // Callback function when requesting permission to access the PPAPI broker.
   // |result| is true if permission was granted.
   void OnPpapiBrokerPermissionResult(int routing_id, bool result);
 
   void OnBrowserPluginMessage(RenderFrameHost* render_frame_host,
                               const IPC::Message& message);
 #endif  // defined(ENABLE_PLUGINS)
   void OnUpdateFaviconURL(const std::vector<FaviconURL>& candidates);
   void OnFirstVisuallyNonEmptyPaint();
+  void OnFirstPaintAfterLoad();

[Charlie Reis, 2015/09/30 21:42:09]

Don't forget to remove this.

[kenrb, 2015/10/01 12:45:09]

Done.

   void OnMediaPlayingNotification(int64 player_cookie,
                                   bool has_video,
                                   bool has_audio,
                                   bool is_remote);
   void OnMediaPausedNotification(int64 player_cookie);
   void OnShowValidationMessage(const gfx::Rect& anchor_in_root_view,
                                const base::string16& main_text,
                                const base::string16& sub_text);
   void OnHideValidationMessage();
   void OnMoveValidationMessage(const gfx::Rect& anchor_in_root_view);
@@ skipping 431 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_