Separate mouse transition events from pointerevent

third_party/WebKit/Source/core/input/PointerEventManager.h

Index: third_party/WebKit/Source/core/input/PointerEventManager.h
diff --git a/third_party/WebKit/Source/core/input/PointerEventManager.h b/third_party/WebKit/Source/core/input/PointerEventManager.h
index 5b74b984e4a43ed8ff323c057a6b17beac280d19..cb96d1885d2a33439080deb3f55902d785836d99 100644
--- a/third_party/WebKit/Source/core/input/PointerEventManager.h
+++ b/third_party/WebKit/Source/core/input/PointerEventManager.h
@@ -29,7 +29,8 @@ public:
         PassRefPtrWillBeRawPtr<Node>, const AtomicString& type,
         int clickCount, const PlatformMouseEvent&,
         PassRefPtrWillBeRawPtr<Node> relatedTarget,
-        PassRefPtrWillBeRawPtr<AbstractView>);
+        PassRefPtrWillBeRawPtr<AbstractView>,
+        PassRefPtrWillBeRawPtr<Node> lastNodeUnderMouse);
 
     // Returns whether the event is consumed or not
     WebInputEventResult sendTouchPointerEvent(
@@ -45,15 +46,11 @@ public:
     void sendNodeTransitionEvents(PassRefPtrWillBeRawPtr<Node> exitedNode,
         PassRefPtrWillBeRawPtr<Node> enteredNode,
         const PlatformMouseEvent&,
-        PassRefPtrWillBeRawPtr<AbstractView>);
+        PassRefPtrWillBeRawPtr<AbstractView>, bool);
 
     // Clear all the existing ids.
     void clear();
 
-    // May clear PREVENT MOUSE EVENT flag as per pointer event spec:
-    // https://w3c.github.io/pointerevents/#compatibility-mapping-with-mouse-events
-    void conditionallyEnableMouseEventForPointerTypeMouse(unsigned);
-
     void elementRemoved(EventTarget*);
     void setPointerCapture(int, EventTarget*);
     void releasePointerCapture(int, EventTarget*);
@@ -86,12 +83,25 @@ private:
         const PlatformMouseEvent& = PlatformMouseEvent(),
         bool sendMouseEvent = false);
     void setNodeUnderPointer(PassRefPtrWillBeRawPtr<PointerEvent>,
-        PassRefPtrWillBeRawPtr<EventTarget>);
-    void processPendingPointerCapture(
+        PassRefPtrWillBeRawPtr<EventTarget>, bool sendEvent = true);
+
+    // Returns whether the pointer capture is changed. In this case this
+    // function will take care of transition events and setNodeUnderPointer
+    // should not send transition events.
+    bool processPendingPointerCapture(
         const PassRefPtrWillBeRawPtr<PointerEvent>,
         const PassRefPtrWillBeRawPtr<EventTarget>,
         const PlatformMouseEvent& = PlatformMouseEvent(),
         bool sendMouseEvent = false);
+
+    void prepareForFiringPointerEvent(
+        const PassRefPtrWillBeRawPtr<PointerEvent>,
+        const PassRefPtrWillBeRawPtr<EventTarget> hitTestTarget,
+        const PassRefPtrWillBeRawPtr<EventTarget> lastNodeUnderMouse = nullptr,
+        const PlatformMouseEvent& = PlatformMouseEvent(),
+        bool sendMouseEvent = false,
+        bool isFrameBoundaryTransition = true);
+
     void removeTargetFromPointerCapturingMapping(
         PointerCapturingMap&, const EventTarget*);
     PassRefPtrWillBeRawPtr<EventTarget> getEffectiveTargetForPointerEvent(