[Manifest] Update a RenderFrame's Manifest when navigated.

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"
@@ skipping 24 matching lines @@
   explicit ManifestManager(RenderFrame* render_frame);
   ~ManifestManager() override;
 
   // Will call the given |callback| with the Manifest associated with the
   // RenderFrame if any. Will pass an empty Manifest in case of error.
   void GetManifest(const GetManifestCallback& callback);
 
   // RenderFrameObserver implementation.
   bool OnMessageReceived(const IPC::Message& message) override;
   void DidChangeManifest() override;
+  void DidCommitProvisionalLoad(bool is_new_navigation) override;
 
  private:
   enum ResolveState {
     ResolveStateSuccess,
     ResolveStateFailure
   };
 
   // Called when receiving a ManifestManagerMsg_RequestManifest from the browser
   // process.
   void OnRequestManifest(int request_id);
@@ skipping 20 matching lines @@
   Manifest manifest_;
 
   std::list<GetManifestCallback> pending_callbacks_;
 
   DISALLOW_COPY_AND_ASSIGN(ManifestManager);
 };
 
 } // namespace content
 
 #endif // CONTENT_RENDERER_MANIFEST_MANIFEST_MANAGER_H_