Bug 1648630 - Part 1: Remove MultiTouchInput::ToWidgetMouseEvent; r=kats

This was used in B2G and no one uses it now.

Differential Revision: https://phabricator.services.mozilla.com/D81816

widget/InputData.cpp

@@ -193,48 +193,6 @@ WidgetTouchEvent MultiTouchInput::ToWidgetTouchEvent(nsIWidget* aWidget) const {
   return event;
 }
 
-WidgetMouseEvent MultiTouchInput::ToWidgetMouseEvent(nsIWidget* aWidget) const {
-  MOZ_ASSERT(NS_IsMainThread(),
-             "Can only convert To WidgetMouseEvent on main thread");
-
-  EventMessage mouseEventMessage = eVoidEvent;
-  switch (mType) {
-    case MultiTouchInput::MULTITOUCH_START:
-      mouseEventMessage = eMouseDown;
-      break;
-    case MultiTouchInput::MULTITOUCH_MOVE:
-      mouseEventMessage = eMouseMove;
-      break;
-    case MultiTouchInput::MULTITOUCH_CANCEL:
-    case MultiTouchInput::MULTITOUCH_END:
-      mouseEventMessage = eMouseUp;
-      break;
-    default:
-      MOZ_ASSERT_UNREACHABLE("Did not assign a type to WidgetMouseEvent");
-      break;
-  }
-
-  WidgetMouseEvent event(true, mouseEventMessage, aWidget,
-                         WidgetMouseEvent::eReal, WidgetMouseEvent::eNormal);
-
-  const SingleTouchData& firstTouch = mTouches[0];
-  event.mRefPoint.x = firstTouch.mScreenPoint.x;
-  event.mRefPoint.y = firstTouch.mScreenPoint.y;
-
-  event.mTime = mTime;
-  event.mButton = MouseButton::ePrimary;
-  event.mInputSource = MouseEvent_Binding::MOZ_SOURCE_TOUCH;
-  event.mModifiers = modifiers;
-  event.mFlags.mHandledByAPZ = mHandledByAPZ;
-  event.mFocusSequenceNumber = mFocusSequenceNumber;
-
-  if (mouseEventMessage != eMouseMove) {
-    event.mClickCount = 1;
-  }
-
-  return event;
-}
-
 int32_t MultiTouchInput::IndexOfTouch(int32_t aTouchIdentifier) {
   for (size_t i = 0; i < mTouches.Length(); i++) {
     if (mTouches[i].mIdentifier == aTouchIdentifier) {

widget/InputData.h

@@ -205,7 +205,6 @@ class MultiTouchInput : public InputData {
   void Translate(const ScreenPoint& aTranslation);
 
   WidgetTouchEvent ToWidgetTouchEvent(nsIWidget* aWidget) const;
-  WidgetMouseEvent ToWidgetMouseEvent(nsIWidget* aWidget) const;
 
   // Return the index into mTouches of the SingleTouchData with the given
   // identifier, or -1 if there is no such SingleTouchData.