Fix for WebView accessible resources.

extensions/browser/guest_view/web_view/web_view_guest.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 EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_
 
 #include <vector>
 
 #include "base/observer_list.h"
@@ skipping 42 matching lines @@
   // A <webview> can specify both the partition name and whether the storage
   // for that partition should be persisted. Each tag gets a SiteInstance with
   // a specially formatted URL, based on the application it is hosted by and
   // the partition requested by it. The format for that URL is:
   // chrome-guest://partition_domain/persist?partition_name
   static bool GetGuestPartitionConfigForSite(const GURL& site,
                                              std::string* partition_domain,
                                              std::string* partition_name,
                                              bool* in_memory);
 
+  // Returns the webview partition ID associated with the render process
+  // represented by |render_process_host|, if any. Otherwise, an empty string is
+  // returned.
+  static std::string GetPartitionID(
+      const content::RenderProcessHost* render_process_host);
+
   static const char Type[];
 
   // Returns the stored rules registry ID of the given webview. Will generate
   // an ID for the first query.
   static int GetOrGenerateRulesRegistryID(
       int embedder_process_id,
       int web_view_instance_id);
 
   // Get the current zoom.
   double GetZoom() const;
@@ skipping 340 matching lines @@
   // This is used to ensure pending tasks will not fire after this object is
   // destroyed.
   base::WeakPtrFactory<WebViewGuest> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebViewGuest);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_WEB_VIEW_WEB_VIEW_GUEST_H_