[Tracking Patch] Unified gesture detection

content/browser/renderer_host/input/gesture_event_packet.cc

Index: content/browser/renderer_host/input/gesture_event_packet.cc
diff --git a/content/browser/renderer_host/input/gesture_event_packet.cc b/content/browser/renderer_host/input/gesture_event_packet.cc
index 542e719f4d0bfdcb21a819e28e90da73a2d9c52f..b7419d73ba5a32f3795d82706a94f90236b4afbe 100644
--- a/content/browser/renderer_host/input/gesture_event_packet.cc
+++ b/content/browser/renderer_host/input/gesture_event_packet.cc
@@ -5,6 +5,7 @@
 #include "content/browser/renderer_host/input/gesture_event_packet.h"
 
 #include "base/logging.h"
+#include "ui/events/gesture_detection/motion_event.h"
 
 using blink::WebGestureEvent;
 using blink::WebInputEvent;
@@ -40,6 +41,26 @@ GestureEventPacket::GestureSource ToGestureSource(const WebTouchEvent& event) {
   }
 }
 
+GestureEventPacket::GestureSource
+ToGestureSource(const ui::MotionEvent& event) {
+  switch (event.GetAction()) {
+    case ui::MotionEvent::ACTION_POINTER_DOWN:
+      return GestureEventPacket::TOUCH_BEGIN;
+    case ui::MotionEvent::ACTION_POINTER_UP:
+      return GestureEventPacket::TOUCH_END;
+    case ui::MotionEvent::ACTION_DOWN:
+      return GestureEventPacket::TOUCH_SEQUENCE_BEGIN;
+    case ui::MotionEvent::ACTION_UP:
+      return GestureEventPacket::TOUCH_SEQUENCE_END;
+    case ui::MotionEvent::ACTION_CANCEL:
+      return GestureEventPacket::TOUCH_SEQUENCE_END;
+    case ui::MotionEvent::ACTION_MOVE:
+      return GestureEventPacket::TOUCH_MOVE;
+  };
+  NOTREACHED() << "Invalid ui::MotionEvent action: " << event.GetAction();
+  return GestureEventPacket::INVALID;
+}
+
 }  // namespace
 
 GestureEventPacket::GestureEventPacket()
@@ -78,6 +99,10 @@ GestureEventPacket GestureEventPacket::FromTouch(const WebTouchEvent& event) {
   return GestureEventPacket(ToGestureSource(event));
 }
 
+GestureEventPacket GestureEventPacket::FromTouch(const ui::MotionEvent& event) {
+  return GestureEventPacket(ToGestureSource(event));
+}
+
 GestureEventPacket GestureEventPacket::FromTouchTimeout(
     const WebGestureEvent& event) {
   GestureEventPacket packet(TOUCH_TIMEOUT);