Move touch slop suppression to TouchEventManager

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 "public/platform/WebInputEventResult.h"
@@ skipping 77 matching lines @@
                                  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;
 
   bool m_touchPressed;
+  bool m_suppressingTouchmoves;

[mustaq, 2017/02/01 20:17:10]

Please make it clear that this is "suppressingMovesWithinSlop", to rule out
possible mixup with other suppressions.

[lanwei, 2017/02/02 19:49:36]

Done.

 
   // The current touch action, computed on each touch start and is
   // a union of all touches. Reset when all touches are released.
   TouchAction m_currentTouchAction;
 };
 
 }  // namespace blink
 
 WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(blink::TouchEventManager::TouchInfo);
 
 #endif  // TouchEventManager_h