Refactor TouchEventManager::TouchInfo class

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

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EventHandlingUtil_h
 #define EventHandlingUtil_h
 
+#include "core/frame/LocalFrame.h"
 #include "core/layout/HitTestResult.h"
 #include "core/page/EventWithHitTestResults.h"
 #include "platform/geometry/LayoutPoint.h"
 #include "public/platform/WebInputEventResult.h"
 
 namespace blink {
 
 class LocalFrame;
 class ScrollableArea;
 class PaintLayer;
@@ skipping 17 matching lines @@
 
 ContainerNode* ParentForClickEvent(const Node&);
 
 LayoutPoint ContentPointFromRootFrame(LocalFrame*,
                                       const IntPoint& point_in_root_frame);
 
 MouseEventWithHitTestResults PerformMouseEventHitTest(LocalFrame*,
                                                       const HitTestRequest&,
                                                       const WebMouseEvent&);
 
+class PointerEventTarget {
+  DISALLOW_NEW_EXCEPT_PLACEMENT_NEW();
+
+ public:
+  DEFINE_INLINE_TRACE() {
+    visitor->Trace(target_node);
+    visitor->Trace(target_frame);
+  }
+
+  Member<Node> target_node;
+  Member<LocalFrame> target_frame;
+  String region;
+};
+
 }  // namespace EventHandlingUtil
 
 }  // namespace blink
 
+WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::EventHandlingUtil::PointerEventTarget);
+
 #endif  // EventHandlingUtil_h