Navigation transitions: Block first response until after transitions have run.

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 295 matching lines @@
   virtual base::android::ScopedJavaLocalRef<jobject> GetJavaWebContents()
       OVERRIDE;
 #elif defined(OS_MACOSX)
   virtual void SetAllowOverlappingViews(bool overlapping) OVERRIDE;
   virtual bool GetAllowOverlappingViews() OVERRIDE;
   virtual void SetOverlayView(WebContents* overlay,
                               const gfx::Point& offset) OVERRIDE;
   virtual void RemoveOverlayView() OVERRIDE;
 #endif
 
+  // Notifies the main frame that it can continue navigation (if it was deferred
+  // immediately at first response).
+  virtual void ResumeResponseDeferredAtStart() OVERRIDE;
+

[nasko, 2014/05/28 22:59:00]

nit: extra blank line

[shatch, 2014/05/29 21:41:22]

Done.

+
   // Implementation of PageNavigator.
   virtual WebContents* OpenURL(const OpenURLParams& params) OVERRIDE;
 
   // Implementation of IPC::Sender.
   virtual bool Send(IPC::Message* message) OVERRIDE;
 
   // RenderFrameHostDelegate ---------------------------------------------------
   virtual bool OnMessageReceived(RenderFrameHost* render_frame_host,
                                  const IPC::Message& message) OVERRIDE;
   virtual const GURL& GetMainFrameLastCommittedURL() const OVERRIDE;
   virtual void RenderFrameCreated(RenderFrameHost* render_frame_host) OVERRIDE;
   virtual void RenderFrameDeleted(RenderFrameHost* render_frame_host) OVERRIDE;
   virtual void DidStartLoading(RenderFrameHost* render_frame_host,
                                bool to_different_document) OVERRIDE;
   virtual void SwappedOut(RenderFrameHost* render_frame_host) OVERRIDE;
+  virtual void DidDeferAfterResponseStarted() OVERRIDE;
   virtual void WorkerCrashed(RenderFrameHost* render_frame_host) OVERRIDE;
   virtual void ShowContextMenu(RenderFrameHost* render_frame_host,
                                const ContextMenuParams& params) OVERRIDE;
   virtual void RunJavaScriptMessage(RenderFrameHost* render_frame_host,
                                     const base::string16& message,
                                     const base::string16& default_prompt,
                                     const GURL& frame_url,
                                     JavaScriptMessageType type,
                                     IPC::Message* reply_msg) OVERRIDE;
   virtual void RunBeforeUnloadConfirm(RenderFrameHost* render_frame_host,
@@ skipping 788 matching lines @@
   bool last_dialog_suppressed_;
 
   scoped_ptr<GeolocationDispatcherHost> geolocation_dispatcher_host_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_IMPL_H_