Send node transition events for touch events

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

Index: third_party/WebKit/Source/core/events/PointerEventManager.h
diff --git a/third_party/WebKit/Source/core/events/PointerEventManager.h b/third_party/WebKit/Source/core/events/PointerEventManager.h
index ea851f1b29d581ad7efb15ad4820d0df00c51af3..fe6a9a5dd068ddec0ecbb129ea5b26dd511dd6af 100644
--- a/third_party/WebKit/Source/core/events/PointerEventManager.h
+++ b/third_party/WebKit/Source/core/events/PointerEventManager.h
@@ -26,20 +26,22 @@ namespace blink {
 class CORE_EXPORT PointerEventManager {
     DISALLOW_NEW();
 public:
+    PointerEventManager();
+    ~PointerEventManager();
+    DECLARE_TRACE();
 
     PassRefPtrWillBeRawPtr<PointerEvent> create(const AtomicString& type,
         const PlatformMouseEvent&, PassRefPtrWillBeRawPtr<Node> relatedTarget,
         PassRefPtrWillBeRawPtr<AbstractView>);
 
-    PassRefPtrWillBeRawPtr<PointerEvent> create(const AtomicString& type,
+    // Returns whether the event is consumed or not
+    bool sendTouchPointerEvent(PassRefPtrWillBeRawPtr<EventTarget>,
         const PlatformTouchPoint&, PlatformEvent::Modifiers,
         const double width, const double height,
         const double clientX, const double clientY);
 
-    PassRefPtrWillBeRawPtr<PointerEvent> createPointerCancel(const PlatformTouchPoint&);
-
-    PointerEventManager();
-    ~PointerEventManager();
+    void sendTouchCancelPointerEvent(PassRefPtrWillBeRawPtr<EventTarget>,
+        const PlatformTouchPoint&);
 
     // Clear all the existing ids.
     void clear();
@@ -60,6 +62,22 @@ private:
     MappedId add(const IncomingId);
     bool isPrimary(const MappedId) const;
     void setIdAndType(PointerEventInit &, const WebPointerProperties &);
+    void sendNodeTransitionEvents(EventTarget* exitedTarget,
+        EventTarget* enteredTarget,
+        PassRefPtrWillBeRawPtr<PointerEvent>);
+
+    PassRefPtrWillBeRawPtr<PointerEvent> create(const AtomicString& type,
+        const PlatformTouchPoint&, PlatformEvent::Modifiers,
+        const double width, const double height,
+        const double clientX, const double clientY);
+    PassRefPtrWillBeRawPtr<PointerEvent> create(
+        PassRefPtrWillBeRawPtr<PointerEvent>,
+        const AtomicString& type,
+        PassRefPtrWillBeRawPtr<EventTarget>);
+    PassRefPtrWillBeRawPtr<PointerEvent> createPointerCancel(
+        const PlatformTouchPoint&);
+    void setNodeUnderPointer(PassRefPtrWillBeRawPtr<PointerEvent>,
+        EventTarget*);
 
     static const MappedId s_invalidId;
     static const MappedId s_mouseId;
@@ -69,6 +87,7 @@ private:
     HashMap<MappedId, IncomingId, WTF::IntHash<MappedId>, WTF::UnsignedWithZeroKeyHashTraits<MappedId>> m_idReverseMapping;
     MappedId m_primaryId[static_cast<int>(WebPointerProperties::PointerType::LastEntry) + 1];
     MappedId m_idCount[static_cast<int>(WebPointerProperties::PointerType::LastEntry) + 1];
+    WillBeHeapHashMap<int, RefPtrWillBeMember<EventTarget>> m_nodeUnderPointer;
 };
 
 } // namespace blink