Don't send touchcancel on touch scroll start

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 9b967cb4d15b3fb7a88945c1bc400c836ff5d290..7f8c99c3f92c315d67d0943083d8f70f75f35f89 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -6963,6 +6963,21 @@ Keep your key file in a safe place. You will need it to create new versions of y
       <message name="IDS_FLAGS_OUT_OF_PROCESS_PDF_DESCRIPTION" desc="Description for the flag to enable out of process PDF.">
         Enable the out of process PDF plugin.
       </message>
+      <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_NAME" desc="Title for the flag to change the touch scrolling mode.">
+        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.
+      </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>
+      <message name="IDS_FLAGS_TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE" desc="Name for the sync-touchmove scrolling mode">
+        sync-touchmove
+      </message>
 
       <!-- Crashes -->
       <message name="IDS_CRASHES_TITLE" desc="Title for the chrome://crashes page.">