Add the feature to retain the user gesture in the extension callback

extensions/browser/extension_function_dispatcher.cc

Index: extensions/browser/extension_function_dispatcher.cc
===================================================================
--- extensions/browser/extension_function_dispatcher.cc	(revision 262146)
+++ extensions/browser/extension_function_dispatcher.cc	(working copy)
@@ -92,7 +92,8 @@
                             int request_id,
                             ExtensionFunction::ResponseType type,
                             const base::ListValue& results,
-                            const std::string& error) {
+                            const std::string& error,
+                            const bool user_gesture) {
   DCHECK(ipc_sender);
 
   if (type == ExtensionFunction::BAD_MESSAGE) {
@@ -114,7 +115,7 @@
 
   ipc_sender->Send(new ExtensionMsg_Response(
       routing_id, request_id, type == ExtensionFunction::SUCCEEDED, results,
-      error));
+      error, user_gesture));
 }
 
 void IOThreadResponseCallback(
@@ -123,7 +124,8 @@
     int request_id,
     ExtensionFunction::ResponseType type,
     const base::ListValue& results,
-    const std::string& error) {
+    const std::string& error,
+    const bool user_gesture) {
   if (!ipc_sender.get())
     return;
 
@@ -133,7 +135,8 @@
                          request_id,
                          type,
                          results,
-                         error);
+                         error,
+                         user_gesture);
 }
 
 }  // namespace
@@ -180,11 +183,12 @@
   void OnExtensionFunctionCompleted(int request_id,
                                     ExtensionFunction::ResponseType type,
                                     const base::ListValue& results,
-                                    const std::string& error) {
+                                    const std::string& error,
+                                    const bool user_gesture) {
     CommonResponseCallback(
         render_view_host_, render_view_host_->GetRoutingID(),
         render_view_host_->GetProcess()->GetHandle(), request_id, type,
-        results, error);
+        results, error, user_gesture);
   }
 
   base::WeakPtr<ExtensionFunctionDispatcher> dispatcher_;
@@ -506,7 +510,7 @@
     const ExtensionFunction::ResponseCallback& callback) {
   base::ListValue empty_list;
   callback.Run(ExtensionFunction::FAILED, empty_list,
-               "Access to extension API denied.");
+               "Access to extension API denied.", false);
 }
 
 }  // namespace extensions