Implement async touchmove dispatch during scroll

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 4acba924ceaf9977b589b5303d9a67d55fc4cf9b..e067a17517a4ada1ef905456ff55a7a99c7767dc 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6745,13 +6745,13 @@ Keep your key file in a safe place. You will need it to create new versions of y
         Touch scrolling mode.
       </message>
       <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_DESCRIPTION" desc="Description for the flag to control touch scrolling mode.">
-        Change the touch event behavior while scrolling.  "touchcancel" is what chrome has historically used, and "absorb-touchmove" is the new preferred mode.
+        Change the touch event behavior while scrolling.  "touchcancel" is what chrome has historically used, and "async-touchmove" is the new preferred mode.
       </message>
       <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_TOUCHCANCEL" desc="Name for the touchcancel scrolling mode">
         touchcancel
       </message>
-      <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_ABSORB_TOUCHMOVE" desc="Name for the absorb-touchmove scrolling mode">
-        absorb-touchmove
+      <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE" desc="Name for the async-touchmove scrolling mode">
+        async-touchmove
       </message>
       <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE" desc="Name for the sync-touchmove scrolling mode">
         sync-touchmove