Don't send touchcancel on touch scroll start

content/browser/renderer_host/input/touch_event_queue.h

Index: content/browser/renderer_host/input/touch_event_queue.h
diff --git a/content/browser/renderer_host/input/touch_event_queue.h b/content/browser/renderer_host/input/touch_event_queue.h
index 6c50c329e85938dbeb53b6725ef738fad1fe481f..cd8c8e6f1861b868ec17d03e0431eedcc5357d85 100644
--- a/content/browser/renderer_host/input/touch_event_queue.h
+++ b/content/browser/renderer_host/input/touch_event_queue.h
@@ -50,9 +50,9 @@ class CONTENT_EXPORT TouchEventQueue {
     // Like sync, except that consumed scroll events cause subsequent touchmove
     // events to be suppressed.  Unconsumed scroll events return touchmove
     // events to being dispatched synchronously (so scrolling may be hijacked
-    // when a scroll limit is reached, and later resumed).
+    // when a scroll limit is reached, and later resumed). http://goo.gl/RShsdN
     TOUCH_SCROLLING_MODE_ABSORB_TOUCHMOVE,
-    TOUCH_SCROLLING_MODE_DEFAULT = TOUCH_SCROLLING_MODE_TOUCHCANCEL
+    TOUCH_SCROLLING_MODE_DEFAULT = TOUCH_SCROLLING_MODE_ABSORB_TOUCHMOVE
   };
 
   // The |client| must outlive the TouchEventQueue. If