Make first TouchStart and first TouchMove events on a flinging layer non-blocking

third_party/WebKit/Source/core/input/TouchEventManager.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 TouchEventManager_h
 #define TouchEventManager_h
 
 #include "core/CoreExport.h"
 #include "core/events/PointerEventFactory.h"
 #include "platform/UserGestureIndicator.h"
@@ skipping 81 matching lines @@
     using TouchTargetMap = HeapHashMap<unsigned, Member<Node>, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>>;
     TouchTargetMap m_targetForTouchID;
     using TouchRegionMap = HashMap<unsigned, String, DefaultHash<unsigned>::Hash, WTF::UnsignedWithZeroKeyHashTraits<unsigned>>;
     TouchRegionMap m_regionForTouchID;
 
     // If set, the document of the active touch sequence. Unset if no touch sequence active.
     Member<Document> m_touchSequenceDocument;
 
     RefPtr<UserGestureToken> m_touchSequenceUserGestureToken;
     bool m_touchPressed;
-    // True if waiting on first touch move after a touch start.
-    bool m_waitingForFirstTouchMove;
     // True if a touch is active but scrolling/zooming has started.
     bool m_touchScrollStarted;
     // The touch event currently being handled or NoType if none.
     PlatformEvent::EventType m_currentEvent;
 };
 
 } // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::TouchEventManager::TouchInfo);
 
 #endif // TouchEventManager_h