Don't send touch move to renderer while scrolling

content/browser/renderer_host/input/touch_event_queue.cc

Index: content/browser/renderer_host/input/touch_event_queue.cc
diff --git a/content/browser/renderer_host/input/touch_event_queue.cc b/content/browser/renderer_host/input/touch_event_queue.cc
index c1675b9952dc78f817446561167db94f8440c7a4..e22c05d0f80ff504cdbcdd8408c55dd3b030bb06 100644
--- a/content/browser/renderer_host/input/touch_event_queue.cc
+++ b/content/browser/renderer_host/input/touch_event_queue.cc
@@ -91,7 +91,8 @@ class CoalescedWebTouchEvent {
 
 TouchEventQueue::TouchEventQueue(TouchEventQueueClient* client)
     : client_(client),
-      dispatching_touch_ack_(false) {
+      dispatching_touch_ack_(false),
+      no_touch_move_to_renderer_(false) {
   DCHECK(client);
 }
 
@@ -212,6 +213,10 @@ bool TouchEventQueue::ShouldForwardToRenderer(
   if (event.type == WebKit::WebInputEvent::TouchStart)
     return true;
 
+  if (event.type == WebKit::WebInputEvent::TouchMove &&
+      no_touch_move_to_renderer_)
+    return false;
+
   for (unsigned int i = 0; i < event.touchesLength; ++i) {
     const WebKit::WebTouchPoint& point = event.touches[i];
     // If a point has been stationary, then don't take it into account.