Android mouse events shouldn't appear as TouchEvents

ui/events/gesture_detection/gesture_provider.cc

Index: ui/events/gesture_detection/gesture_provider.cc
diff --git a/ui/events/gesture_detection/gesture_provider.cc b/ui/events/gesture_detection/gesture_provider.cc
index b7cdb24bdd5fb685af84f3b4a29538ccdfb21286..f5f26981d6404bd9c9f4f9dda0de95fb4d20c04a 100644
--- a/ui/events/gesture_detection/gesture_provider.cc
+++ b/ui/events/gesture_detection/gesture_provider.cc
@@ -42,6 +42,16 @@ const char* GetMotionEventActionName(MotionEvent::Action action) {
       return "ACTION_CANCEL";
     case MotionEvent::ACTION_MOVE:
       return "ACTION_MOVE";
+    case MotionEvent::ACTION_HOVER_ENTER:
+      return "ACTION_HOVER_ENTER";
+    case MotionEvent::ACTION_HOVER_EXIT:
+      return "ACTION_HOVER_EXIT";
+    case MotionEvent::ACTION_HOVER_MOVE:
+      return "ACTION_HOVER_MOVE";
+    case MotionEvent::ACTION_BUTTON_PRESS:
+      return "ACTION_BUTTON_PRESS";
+    case MotionEvent::ACTION_BUTTON_RELEASE:
+      return "ACTION_BUTTON_RELEASE";
   }
   return "";
 }
@@ -853,6 +863,11 @@ void GestureProvider::OnTouchEventHandlingBegin(const MotionEvent& event) {
     case MotionEvent::ACTION_MOVE:
       break;
     case MotionEvent::ACTION_NONE:
+    case MotionEvent::ACTION_HOVER_ENTER:
+    case MotionEvent::ACTION_HOVER_EXIT:
+    case MotionEvent::ACTION_HOVER_MOVE:
+    case MotionEvent::ACTION_BUTTON_PRESS:
+    case MotionEvent::ACTION_BUTTON_RELEASE:
       NOTREACHED();
       break;
   }
@@ -881,6 +896,11 @@ void GestureProvider::OnTouchEventHandlingEnd(const MotionEvent& event) {
     case MotionEvent::ACTION_MOVE:
       break;
     case MotionEvent::ACTION_NONE:
+    case MotionEvent::ACTION_HOVER_ENTER:
+    case MotionEvent::ACTION_HOVER_EXIT:
+    case MotionEvent::ACTION_HOVER_MOVE:
+    case MotionEvent::ACTION_BUTTON_PRESS:
+    case MotionEvent::ACTION_BUTTON_RELEASE:
       NOTREACHED();
       break;
   }