Implement direction-specific touch-action values (chromium side).

content/common/input/touch_action.h

Index: content/common/input/touch_action.h
diff --git a/content/common/input/touch_action.h b/content/common/input/touch_action.h
index 5eb09f9ada2e980bc7ee5b39171452124a52063f..89f000df7bd19124496f57e61bafb9874332c434 100644
--- a/content/common/input/touch_action.h
+++ b/content/common/input/touch_action.h
@@ -17,17 +17,25 @@ enum TouchAction {
   // No scrolling or zooming allowed.
   TOUCH_ACTION_NONE = 1 << 0,
 
-  TOUCH_ACTION_PAN_X = 1 << 1,
+  TOUCH_ACTION_PAN_LEFT = 1 << 1,
 
-  TOUCH_ACTION_PAN_Y = 1 << 2,
+  TOUCH_ACTION_PAN_RIGHT = 1 << 2,
+
+  TOUCH_ACTION_PAN_X = TOUCH_ACTION_PAN_LEFT | TOUCH_ACTION_PAN_RIGHT,
+
+  TOUCH_ACTION_PAN_UP = 1 << 3,
+
+  TOUCH_ACTION_PAN_DOWN = 1 << 4,
+
+  TOUCH_ACTION_PAN_Y = TOUCH_ACTION_PAN_UP | TOUCH_ACTION_PAN_DOWN,
 
   TOUCH_ACTION_PAN_X_Y = TOUCH_ACTION_PAN_X | TOUCH_ACTION_PAN_Y,
 
-  TOUCH_ACTION_PINCH_ZOOM = 1 << 3,
+  TOUCH_ACTION_PINCH_ZOOM = 1 << 5,
 
   TOUCH_ACTION_MANIPULATION = TOUCH_ACTION_PAN_X_Y | TOUCH_ACTION_PINCH_ZOOM,
 
-  TOUCH_ACTION_MAX = (1 << 4) - 1
+  TOUCH_ACTION_MAX = (1 << 6) - 1
 };
 
 }  // namespace content