Update user gesture related code to the new WebKit API

chrome/renderer/extensions/request_sender.cc

Index: chrome/renderer/extensions/request_sender.cc
diff --git a/chrome/renderer/extensions/request_sender.cc b/chrome/renderer/extensions/request_sender.cc
index 7ad4a243a59e48415371616f93896745b21b062e..fdc7354545640acf80e05e3589b4b10595bd1c3a 100644
--- a/chrome/renderer/extensions/request_sender.cc
+++ b/chrome/renderer/extensions/request_sender.cc
@@ -13,6 +13,7 @@
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDocument.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSecurityOrigin.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebUserGestureIndicator.h"
 
 using content::V8ValueConverter;
 
@@ -92,7 +93,7 @@ void RequestSender::StartRequest(ChromeV8Context* context,
   params.request_id = request_id;
   params.has_callback = has_callback;
   params.user_gesture =
-      webframe ? webframe->isProcessingUserGesture() : false;
+      WebKit::WebUserGestureIndicator::isProcessingUserGesture();
   if (for_io_thread) {
     renderview->Send(new ExtensionHostMsg_RequestForIOThread(
         renderview->GetRoutingID(), params));