Check the root frame pointer events as well for capture

third_party/WebKit/Source/core/events/PointerEventFactory.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 PointerEventFactory_h
 #define PointerEventFactory_h
 
 #include "core/CoreExport.h"
 #include "core/events/PointerEvent.h"
 #include "public/platform/WebPointerProperties.h"
@@ skipping 55 matching lines @@
   // Returns whether a pointer id exists and active.
   bool isActive(const int) const;
 
   // Returns whether a pointer id exists and has at least one pressed button.
   bool isActiveButtonsState(const int) const;
 
   // Returns the id of the pointer event corresponding to the given pointer
   // properties if exists otherwise s_invalidId.
   int getPointerEventId(const WebPointerProperties&) const;
 
+  // Returns the pointer type of the active pointer event corresponding to
+  // the give pointerId. If there is no matching active pointer it returns
+  // WebPointerProperties::PointerType::Unknown.
+  WebPointerProperties::PointerType getPointerType(int pointerId) const;
+
   static const int s_mouseId;
 
  private:
   typedef WTF::UnsignedWithZeroKeyHashTraits<int> UnsignedHash;
   typedef struct IncomingId : public std::pair<int, int> {
     IncomingId() {}
     IncomingId(WebPointerProperties::PointerType pointerType, int rawId)
         : std::pair<int, int>(static_cast<int>(pointerType), rawId) {}
-    int pointerType() const { return first; }
+    int pointerTypeInt() const { return first; }
+    WebPointerProperties::PointerType pointerType() const {
+      return static_cast<WebPointerProperties::PointerType>(first);
+    }
     int rawId() const { return second; }
   } IncomingId;
   typedef struct PointerAttributes {
     IncomingId incomingId;
     bool isActiveButtons;
     PointerAttributes() : incomingId(), isActiveButtons(false) {}
     PointerAttributes(IncomingId incomingId, unsigned isActiveButtons)
         : incomingId(incomingId), isActiveButtons(isActiveButtons) {}
   } PointerAttributes;
 
@@ skipping 23 matching lines @@
   int m_primaryId[static_cast<int>(
                       WebPointerProperties::PointerType::LastEntry) +
                   1];
   int m_idCount[static_cast<int>(WebPointerProperties::PointerType::LastEntry) +
                 1];
 };
 
 }  // namespace blink
 
 #endif  // PointerEventFactory_h