Block content scripts from executing until user grants permission

chrome/browser/extensions/active_script_controller.h

Index: chrome/browser/extensions/active_script_controller.h
diff --git a/chrome/browser/extensions/active_script_controller.h b/chrome/browser/extensions/active_script_controller.h
index 3edb667a87dad8b6e3df37998ec3bcee411a8bed..bdac973f21876c3b2b52943e0c243b72408ea5aa 100644
--- a/chrome/browser/extensions/active_script_controller.h
+++ b/chrome/browser/extensions/active_script_controller.h
@@ -80,9 +80,13 @@ class ActiveScriptController : public LocationBarController::ActionProvider,
   typedef std::vector<PendingRequest> PendingRequestList;
   typedef std::map<std::string, PendingRequestList> PendingRequestMap;
 
-  // Handles the NotifyExtensionScriptExecution message.
-  void OnNotifyExtensionScriptExecution(const std::string& extension_id,
-                                        int page_id);
+  // Handle the RequestContentScriptPermission message.
+  void OnRequestContentScriptPermission(const std::string& extension_id,
+                                        int page_id,
+                                        int request_id);
+
+  // Grants permission for the given request to run.
+  void GrantContentScriptPermission(int request_id);
 
   // content::WebContentsObserver implementation.
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;