Add support for 'start_url' in Manifest.

content/renderer/manifest/manifest_manager.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 CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_
 #define CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_
 
 #include <list>
 
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/common/manifest.h"
 #include "content/public/renderer/render_frame_observer.h"
 
+class GURL;
+
 namespace blink {
 class WebURLResponse;
 }
 
 namespace content {
 
 class ManifestFetcher;
 
 // The ManifestManager is a helper class that takes care of fetching and parsing
 // the Manifest of the associated RenderFrame. It uses the ManifestFetcher and
@@ skipping 21 matching lines @@
     ResolveStateSuccess,
     ResolveStateFailure
   };
 
   // Called when receiving a ManifestManagerMsg_RequestManifest from the browser
   // process.
   void OnRequestManifest(int request_id);
   void OnRequestManifestComplete(int request_id, const Manifest&);
 
   void FetchManifest();
-  void OnManifestFetchComplete(const blink::WebURLResponse& response,
+  void OnManifestFetchComplete(const GURL& document_url,
+                               const blink::WebURLResponse& response,
                                const std::string& data);
   void ResolveCallbacks(ResolveState state);
 
   scoped_ptr<ManifestFetcher> fetcher_;
 
   // Whether the RenderFrame may have an associated Manifest. If true, the frame
   // may have a manifest, if false, it can't have one. This boolean is true when
   // DidChangeManifest() is called, if it is never called, it means that the
   // associated document has no <link rel='manifest'>.
   bool may_have_manifest_;
 
   // Whether the current Manifest is dirty.
   bool manifest_dirty_;
 
   // Current Manifest. Might be outdated if manifest_dirty_ is true.
   Manifest manifest_;
 
   std::list<GetManifestCallback> pending_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(ManifestManager);
 };
 
 } // namespace content
 
 #endif // CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_