Oilpan: Replace RefPtrs to Node and its subclasses in core/events/ with Oilpan transition types.

BUG=357163

Review URL: https://codereview.chromium.org/308073005

git-svn-id: svn://svn.chromium.org/blink/trunk@175126 bbb929c8-8fbe-4397-9dbb-9b2b20218538

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

@@ -46,6 +46,7 @@ enum EventDispatchContinuation {
 };
 
 class EventDispatcher {
+    STACK_ALLOCATED();
 public:
     static bool dispatchEvent(Node*, PassRefPtr<EventDispatchMediator>);
     static void dispatchScopedEvent(Node*, PassRefPtr<EventDispatchMediator>);
@@ -66,8 +67,8 @@ private:
     void dispatchEventAtBubbling(WindowEventContext&);
     void dispatchEventPostProcess(void* preDispatchEventHandlerResult);
 
-    RefPtr<Node> m_node;
-    RefPtrWillBePersistent<Event> m_event;
+    RefPtrWillBeMember<Node> m_node;
+    RefPtrWillBeMember<Event> m_event;
     RefPtr<FrameView> m_view;
 #ifndef NDEBUG
     bool m_eventDispatched;

third_party/WebKit/Source/core/events/EventPath.cpp

@@ -381,6 +381,7 @@ void EventPath::checkReachability(TreeScope& treeScope, TouchList& touchList)
 
 void EventPath::trace(Visitor* visitor)
 {
+    visitor->trace(m_nodeEventContexts);
     visitor->trace(m_event);
 }
 

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

@@ -95,7 +95,7 @@ private:
     static void checkReachability(TreeScope&, TouchList&);
 #endif
 
-    Vector<NodeEventContext, 64> m_nodeEventContexts;
+    WillBeHeapVector<NodeEventContext, 64> m_nodeEventContexts;
     Node* m_node;
     RawPtrWillBeMember<Event> m_event;
     Vector<RefPtr<TreeScopeEventContext> > m_treeScopeEventContexts;

third_party/WebKit/Source/core/events/MouseEvent.cpp

@@ -49,7 +49,7 @@ PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& type,
     return adoptRefWillBeNoop(new MouseEvent(type, initializer));
 }
 
-PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtr<Node> relatedTarget)
+PassRefPtrWillBeRawPtr<MouseEvent> MouseEvent::create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView> view, const PlatformMouseEvent& event, int detail, PassRefPtrWillBeRawPtr<Node> relatedTarget)
 {
     ASSERT(event.type() == PlatformEvent::MouseMoved || event.button() != NoButton);
 

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

@@ -61,7 +61,7 @@ public:
         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey, unsigned short button,
         PassRefPtr<EventTarget> relatedTarget, PassRefPtrWillBeRawPtr<Clipboard>, bool isSimulated = false);
 
-    static PassRefPtrWillBeRawPtr<MouseEvent> create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView>, const PlatformMouseEvent&, int detail, PassRefPtr<Node> relatedTarget);
+    static PassRefPtrWillBeRawPtr<MouseEvent> create(const AtomicString& eventType, PassRefPtrWillBeRawPtr<AbstractView>, const PlatformMouseEvent&, int detail, PassRefPtrWillBeRawPtr<Node> relatedTarget);
 
     static PassRefPtrWillBeRawPtr<MouseEvent> create(const AtomicString& eventType, const MouseEventInit&);
 

third_party/WebKit/Source/core/events/MutationEvent.cpp

@@ -31,7 +31,7 @@ MutationEvent::MutationEvent()
     ScriptWrappable::init(this);
 }
 
-MutationEvent::MutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<Node> relatedNode,
+MutationEvent::MutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Node> relatedNode,
                              const String& prevValue, const String& newValue,
                              const String& attrName, unsigned short attrChange)
     : Event(type, canBubble, cancelable)
@@ -48,7 +48,7 @@ MutationEvent::~MutationEvent()
 {
 }
 
-void MutationEvent::initMutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<Node> relatedNode,
+void MutationEvent::initMutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Node> relatedNode,
                                       const String& prevValue, const String& newValue,
                                       const String& attrName, unsigned short attrChange)
 {
@@ -71,6 +71,7 @@ const AtomicString& MutationEvent::interfaceName() const
 
 void MutationEvent::trace(Visitor* visitor)
 {
+    visitor->trace(m_relatedNode);
     Event::trace(visitor);
 }
 

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

@@ -44,13 +44,14 @@ namespace WebCore {
             return adoptRefWillBeNoop(new MutationEvent);
         }
 
-        static PassRefPtrWillBeRawPtr<MutationEvent> create(const AtomicString& type, bool canBubble, PassRefPtr<Node> relatedNode = nullptr,
+        static PassRefPtrWillBeRawPtr<MutationEvent> create(
+            const AtomicString& type, bool canBubble, PassRefPtrWillBeRawPtr<Node> relatedNode = nullptr,
             const String& prevValue = String(), const String& newValue = String(), const String& attrName = String(), unsigned short attrChange = 0)
         {
             return adoptRefWillBeNoop(new MutationEvent(type, canBubble, false, relatedNode, prevValue, newValue, attrName, attrChange));
         }
 
-        void initMutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<Node> relatedNode,
+        void initMutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Node> relatedNode,
                                const String& prevValue, const String& newValue,
                                const String& attrName, unsigned short attrChange);
 
@@ -66,11 +67,11 @@ namespace WebCore {
 
     private:
         MutationEvent();
-        MutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtr<Node> relatedNode,
+        MutationEvent(const AtomicString& type, bool canBubble, bool cancelable, PassRefPtrWillBeRawPtr<Node> relatedNode,
                       const String& prevValue, const String& newValue,
                       const String& attrName, unsigned short attrChange);
 
-        RefPtr<Node> m_relatedNode;
+        RefPtrWillBeMember<Node> m_relatedNode;
         String m_prevValue;
         String m_newValue;
         String m_attrName;

third_party/WebKit/Source/core/events/NodeEventContext.cpp

@@ -35,7 +35,7 @@
 
 namespace WebCore {
 
-NodeEventContext::NodeEventContext(PassRefPtr<Node> node, PassRefPtr<EventTarget> currentTarget)
+NodeEventContext::NodeEventContext(PassRefPtrWillBeRawPtr<Node> node, PassRefPtr<EventTarget> currentTarget)
     : m_node(node)
     , m_currentTarget(currentTarget)
 {
@@ -46,6 +46,11 @@ NodeEventContext::~NodeEventContext()
 {
 }
 
+void NodeEventContext::trace(Visitor* visitor)
+{
+    visitor->trace(m_node);
+}
+
 void NodeEventContext::handleLocalEvents(Event* event) const
 {
     if (touchEventContext()) {

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

@@ -39,10 +39,12 @@ class NodeList;
 class TouchEventContext;
 
 class NodeEventContext {
+    ALLOW_ONLY_INLINE_ALLOCATION();
 public:
     // FIXME: Use ContainerNode instead of Node.
-    NodeEventContext(PassRefPtr<Node>, PassRefPtr<EventTarget> currentTarget);
+    NodeEventContext(PassRefPtrWillBeRawPtr<Node>, PassRefPtr<EventTarget> currentTarget);
     ~NodeEventContext();
+    void trace(Visitor*);
 
     Node* node() const { return m_node.get(); }
 
@@ -57,7 +59,7 @@ public:
     void handleLocalEvents(Event*) const;
 
 private:
-    RefPtr<Node> m_node;
+    RefPtrWillBeMember<Node> m_node;
     RefPtr<EventTarget> m_currentTarget;
     RefPtr<TreeScopeEventContext> m_treeScopeEventContext;
 };

third_party/WebKit/Source/core/events/WindowEventContext.cpp

@@ -35,7 +35,7 @@
 
 namespace WebCore {
 
-WindowEventContext::WindowEventContext(Event* event, PassRefPtr<Node> node, const NodeEventContext* topNodeEventContext)
+WindowEventContext::WindowEventContext(Event* event, PassRefPtrWillBeRawPtr<Node> node, const NodeEventContext* topNodeEventContext)
 {
     // We don't dispatch load events to the window. This quirk was originally
     // added because Mozilla doesn't propagate load events to the window object.

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

@@ -40,7 +40,7 @@ class NodeEventContext;
 
 class WindowEventContext {
 public:
-    WindowEventContext(Event*, PassRefPtr<Node>, const NodeEventContext*);
+    WindowEventContext(Event*, PassRefPtrWillBeRawPtr<Node>, const NodeEventContext*);
 
     DOMWindow* window() const;
     EventTarget* target() const;