Navigation transitions: Parse out transition-entering-stylesheet link headers.

content/browser/frame_host/render_frame_host_delegate.h

 // Copyright 2013 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_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_
 
 #include "base/basictypes.h"
 #include "base/i18n/rtl.h"
 #include "content/common/content_export.h"
 #include "content/public/common/javascript_message_type.h"
 #include "content/public/common/media_stream_request.h"
+#include "net/http/http_response_headers.h"
 
 class GURL;
 
 namespace IPC {
 class Message;
 }
 
 namespace content {
 class RenderFrameHost;
 class WebContents;
 struct ContextMenuParams;
+struct TransitionLayerData;

[jochen (gone - plz use gerrit), 2014/07/24 09:05:27]

nit. not required anymore

[Zhen Wang, 2014/07/24 15:29:55]

Done.

 
 // An interface implemented by an object interested in knowing about the state
 // of the RenderFrameHost.
 class CONTENT_EXPORT RenderFrameHostDelegate {
  public:
   // This is used to give the delegate a chance to filter IPC messages.
   virtual bool OnMessageReceived(RenderFrameHost* render_frame_host,
                                  const IPC::Message& message);
 
   // Gets the last committed URL. See WebContents::GetLastCommittedURL for a
@@ skipping 17 matching lines @@
   // |to_different_document| will be true unless the load is a fragment
   // navigation, or triggered by history.pushState/replaceState.
   virtual void DidStartLoading(RenderFrameHost* render_frame_host,
                                bool to_different_document) {}
 
   // The RenderFrameHost has been swapped out.
   virtual void SwappedOut(RenderFrameHost* render_frame_host) {}
 
   // Notification that the navigation on the main frame is blocked waiting
   // for transition to occur.
-  virtual void DidDeferAfterResponseStarted() {}
+  virtual void DidDeferAfterResponseStarted(
+      const scoped_refptr<net::HttpResponseHeaders>& headers,
+      const GURL& url) {}
 
   // Used to query whether the navigation transition will be handled.
   virtual bool WillHandleDeferAfterResponseStarted();
 
   // Notification that a worker process has crashed.
   virtual void WorkerCrashed(RenderFrameHost* render_frame_host) {}
 
   // A context menu should be shown, to be built using the context information
   // provided in the supplied params.
   virtual void ShowContextMenu(RenderFrameHost* render_frame_host,
@@ skipping 47 matching lines @@
       const MediaStreamRequest& request,
       const MediaResponseCallback& callback);
 
  protected:
   virtual ~RenderFrameHostDelegate() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_DELEGATE_H_