Move persistent gesture state to Document, add DocumentUserGestureToken

third_party/WebKit/Source/core/input/PointerEventManager.cpp

Index: third_party/WebKit/Source/core/input/PointerEventManager.cpp
diff --git a/third_party/WebKit/Source/core/input/PointerEventManager.cpp b/third_party/WebKit/Source/core/input/PointerEventManager.cpp
index 5dae54204c09d59fadb4dc303b6dfb2500124de1..17f49536c25b1b17cf35e51ade3dfcfd5877f818 100644
--- a/third_party/WebKit/Source/core/input/PointerEventManager.cpp
+++ b/third_party/WebKit/Source/core/input/PointerEventManager.cpp
@@ -4,6 +4,7 @@
 
 #include "core/input/PointerEventManager.h"
 
+#include "core/dom/DocumentUserGestureToken.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/dom/shadow/FlatTreeTraversal.h"
 #include "core/events/MouseEvent.h"
@@ -171,8 +172,8 @@ WebInputEventResult PointerEventManager::dispatchPointerEvent(
     std::unique_ptr<UserGestureIndicator> gestureIndicator;
     if (eventType == EventTypeNames::pointerup &&
         pointerEvent->pointerType() == "touch") {
-      gestureIndicator =
-          wrapUnique(new UserGestureIndicator(UserGestureToken::create()));
+      gestureIndicator = wrapUnique(new UserGestureIndicator(
+          DocumentUserGestureToken::create(&target->toNode()->document())));
     }
 
     DispatchEventResult dispatchResult = target->dispatchEvent(pointerEvent);