[Extensions] Use document url (not top url) for tab-specific permissions

extensions/renderer/extension_frame_helper.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 EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_
 #define EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_
 
 #include "content/public/common/console_message_level.h"
 #include "content/public/renderer/render_frame_observer.h"
 #include "content/public/renderer/render_frame_observer_tracker.h"
 
 struct ExtensionMsg_ExternalConnectionInfo;
 struct ExtensionMsg_TabConnectionInfo;
 
 namespace extensions {
 
 class Dispatcher;
 struct Message;
 
 // RenderFrame-level plumbing for extension features.
 class ExtensionFrameHelper
     : public content::RenderFrameObserver,
       public content::RenderFrameObserverTracker<ExtensionFrameHelper> {
  public:
   ExtensionFrameHelper(content::RenderFrame* render_frame,
                        Dispatcher* extension_dispatcher);
   ~ExtensionFrameHelper() override;
 
+  const std::string& tab_extension_owner_id() const {
+    return tab_extension_owner_id_;
+  }
+
  private:
   // RenderFrameObserver implementation.
   void DidCreateScriptContext(v8::Local<v8::Context>,
                               int extension_group,
                               int world_id) override;
   void WillReleaseScriptContext(v8::Local<v8::Context>, int world_id) override;
   bool OnMessageReceived(const IPC::Message& message) override;
 
   // IPC handlers.
   void OnAddMessageToConsole(content::ConsoleMessageLevel level,
                              const std::string& message);
   void OnExtensionDispatchOnConnect(
       int target_port_id,
       const std::string& channel_name,
       const ExtensionMsg_TabConnectionInfo& source,
       const ExtensionMsg_ExternalConnectionInfo& info,
       const std::string& tls_channel_id);
   void OnExtensionDeliverMessage(int target_port_id,
                                  const Message& message);
   void OnExtensionDispatchOnDisconnect(int port_id,
                                        const std::string& error_message);
+  void OnSetTabExtensionOwner(const std::string& extension_id);
+
+  // The id of the extension that "owns" the tab if this is a chrome-extension
+  // page. If it's not a chrome-extension page, |tab_extension_owner_id_| is
+  // empty.
+  std::string tab_extension_owner_id_;
 
   Dispatcher* extension_dispatcher_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionFrameHelper);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_EXTENSION_FRAME_HELPER_H_