Simplify PointerEventFactory::getPointerIdsOfType() return type.

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 44 matching lines @@
 
     // Clear all the existing ids.
     void clear();
 
     // When a particular pointerId is removed, the id is considered free even
     // though there might have been other PointerEvents that were generated with
     // the same id before.
     bool remove(const int);
 
     // Returns all ids of the given pointerType.
-    HeapVector<int> getPointerIdsOfType(WebPointerProperties::PointerType);
+    Vector<int> getPointerIdsOfType(WebPointerProperties::PointerType);
 
     // Returns whether a pointer id exists and active
     bool isActive(const int);
 
     // Returns type of pointer id if exists, otherwise Unknown
     WebPointerProperties::PointerType getPointerType(const int);
 
     // Returns whether a pointer id exists and has at least one pressed button
     bool isActiveButtonsState(const int);
 
@@ skipping 28 matching lines @@
     int m_currentId;
     HashMap<IncomingId, int, WTF::PairHash<int, int>, WTF::PairHashTraits<UnsignedHash, UnsignedHash>> m_pointerIncomingIdMapping;
     HashMap<int, PointerAttributes, WTF::IntHash<int>, UnsignedHash> m_pointerIdMapping;
     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