Don't log a console warning when touch-action is used.

third_party/WebKit/Source/core/events/TouchEvent.cpp

Index: third_party/WebKit/Source/core/events/TouchEvent.cpp
diff --git a/third_party/WebKit/Source/core/events/TouchEvent.cpp b/third_party/WebKit/Source/core/events/TouchEvent.cpp
index b4df51359f30b24c0c8c5e6142b2c2a341dee3ec..964f93f94ca577afbc2b09ac7ae805322cb252cd 100644
--- a/third_party/WebKit/Source/core/events/TouchEvent.cpp
+++ b/third_party/WebKit/Source/core/events/TouchEvent.cpp
@@ -199,7 +199,8 @@ void logTouchTargetHistogram(EventTarget* eventTarget,
 TouchEvent::TouchEvent()
     : m_causesScrollingIfUncanceled(false),
       m_firstTouchMoveOrStart(false),
-      m_defaultPreventedBeforeCurrentTarget(false) {}
+      m_defaultPreventedBeforeCurrentTarget(false),
+      m_currentTouchAction(TouchActionAuto) {}
 
 TouchEvent::TouchEvent(TouchList* touches,
                        TouchList* targetTouches,
@@ -240,7 +241,8 @@ TouchEvent::TouchEvent(const AtomicString& type,
       m_changedTouches(TouchList::create(initializer.changedTouches())),
       m_causesScrollingIfUncanceled(false),
       m_firstTouchMoveOrStart(false),
-      m_defaultPreventedBeforeCurrentTarget(false) {}
+      m_defaultPreventedBeforeCurrentTarget(false),
+      m_currentTouchAction(TouchActionAuto) {}
 
 TouchEvent::~TouchEvent() {}
 
@@ -312,6 +314,10 @@ DEFINE_TRACE(TouchEvent) {
   UIEventWithKeyState::trace(visitor);
 }
 
+bool TouchEvent::shouldLogPassiveDevtoolsWarning() const {
+  return m_currentTouchAction == TouchActionAuto;

[Rick Byers, 2016/11/22 20:40:33]

nit: add a comment explaining why we disable the warning in this case.  It is a
bit of a heuristic - it's possible the warning still applies.

+}
+
 TouchEventDispatchMediator* TouchEventDispatchMediator::create(
     TouchEvent* touchEvent) {
   return new TouchEventDispatchMediator(touchEvent);