Implement an IsAllowed function in the pepper PPB_Broker_Trusted API

content/public/browser/browser_ppapi_host.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_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_
 
 #include "base/callback_forward.h"
 #include "base/process.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_view_host.h"
+#include "googleurl/src/gurl.h"
 #include "ppapi/c/pp_instance.h"
 
 namespace IPC {
 class ChannelProxy;
 struct ChannelHandle;
 class Sender;
 }
 
 namespace net {
 class HostResolver;
@@ skipping 42 matching lines @@
   // invalid, the ids will be 0 and false will be returned.
   //
   // When a resource is created, the PP_Instance should already have been
   // validated, and the resource hosts will be deleted when the resource is
   // destroyed. So it should not generally be necessary to check for errors
   // from this function except as a last-minute sanity check if you convert the
   // IDs to a RenderView/ProcessHost on the UI thread.
   virtual bool GetRenderViewIDsForInstance(PP_Instance instance,
                                            int* render_process_id,
                                            int* render_view_id) const = 0;
+
   // Returns the name of the plugin.
   virtual const std::string& GetPluginName() = 0;
 
   // Returns the user's profile data directory.
   virtual const FilePath& GetProfileDataDirectory() = 0;
+
+  // Get the Document/Plugin URLs for the given PP_Instance.
+  virtual GURL GetDocumentURLForInstance(PP_Instance instance) = 0;
+  virtual GURL GetPluginURLForInstance(PP_Instance instance) = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_BROWSER_PPAPI_HOST_H_