Remove GestureScrollUpdateWithoutPropagation event (blink)

Source/core/page/EventHandler.cpp

Index: Source/core/page/EventHandler.cpp
diff --git a/Source/core/page/EventHandler.cpp b/Source/core/page/EventHandler.cpp
index fd1abbb8136b323932b8bebfab8dafc6ba36383f..7b8f6ca1878581f688e939fd23c7c86dea20ff76 100644
--- a/Source/core/page/EventHandler.cpp
+++ b/Source/core/page/EventHandler.cpp
@@ -2201,7 +2201,6 @@ bool EventHandler::handleGestureScrollEvent(const PlatformGestureEvent& gestureE
     case PlatformEvent::GestureScrollBegin:
         return handleGestureScrollBegin(gestureEvent);
     case PlatformEvent::GestureScrollUpdate:
-    case PlatformEvent::GestureScrollUpdateWithoutPropagation:
         return handleGestureScrollUpdate(gestureEvent);
     case PlatformEvent::GestureScrollEnd:
         return handleGestureScrollEnd(gestureEvent);
@@ -2371,8 +2370,7 @@ bool EventHandler::handleScrollGestureOnResizer(Node* eventTarget, const Platfor
             m_offsetFromResizeCorner = m_resizeScrollableArea->offsetFromResizeCorner(p);
             return true;
         }
-    } else if (gestureEvent.type() == PlatformEvent::GestureScrollUpdate ||
-               gestureEvent.type() == PlatformEvent::GestureScrollUpdateWithoutPropagation) {
+    } else if (gestureEvent.type() == PlatformEvent::GestureScrollUpdate) {
         if (m_resizeScrollableArea && m_resizeScrollableArea->inResizeMode()) {
             m_resizeScrollableArea->resize(gestureEvent, m_offsetFromResizeCorner);
             return true;
@@ -2457,8 +2455,8 @@ bool EventHandler::handleGestureScrollUpdate(const PlatformGestureEvent& gesture
     RefPtrWillBeRawPtr<FrameView> protector(m_frame->view());
 
     Node* stopNode = nullptr;
-    bool scrollShouldNotPropagate = gestureEvent.type() == PlatformEvent::GestureScrollUpdateWithoutPropagation
-        || (gestureEvent.type() == PlatformEvent::GestureScrollUpdate && gestureEvent.preventPropagation());
+    bool scrollShouldNotPropagate =
+        gestureEvent.type() == PlatformEvent::GestureScrollUpdate && gestureEvent.preventPropagation();

[Rick Byers, 2014/11/25 19:48:02]

nit: I believe we're not guaranteed to have a GestureScrollUpdate event here,
right?  In which case you should just remove this bool and check
gestureEvent.preventPropagation() directly when you need it.

[majidvp, 2014/11/25 19:58:17]

Did you mean that we ARE guaranteed to have a GestureScrollUpdate? 

[majidvp, 2014/11/26 14:58:35]

Done.

 
     // Try to send the event to the correct view.
     if (passScrollGestureEventToWidget(gestureEvent, renderer)) {