Move persistent gesture state to Document, add DocumentUserGestureToken

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

 // 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.
 
 #include "core/input/TouchEventManager.h"
 
 #include "core/dom/Document.h"
+#include "core/dom/DocumentUserGestureToken.h"
 #include "core/events/TouchEvent.h"
 #include "core/frame/Deprecation.h"
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameHost.h"
 #include "core/frame/FrameView.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/input/EventHandlingUtil.h"
 #include "core/input/TouchActionUtil.h"
 #include "core/layout/HitTestCanvasResult.h"
 #include "core/page/ChromeClient.h"
@@ skipping 499 matching lines @@
                                          ->securityContext()
                                          ->getSecurityOrigin();
     Frame* top = m_frame->tree().top();
     if (top &&
         securityOrigin->canAccess(top->securityContext()->getSecurityOrigin()))
       isSameOrigin = true;
   }
 
   std::unique_ptr<UserGestureIndicator> gestureIndicator;
   if (isTap || isSameOrigin) {
-    gestureIndicator = wrapUnique(
-        new UserGestureIndicator(m_touchSequenceUserGestureToken
-                                     ? m_touchSequenceUserGestureToken.release()
-                                     : UserGestureToken::create()));
+    gestureIndicator = wrapUnique(new UserGestureIndicator(
+        m_touchSequenceUserGestureToken
+            ? m_touchSequenceUserGestureToken.release()
+            : DocumentUserGestureToken::create(m_touchSequenceDocument)));
 
     m_touchSequenceUserGestureToken = UserGestureIndicator::currentToken();
     // These are cases we'd like to migrate to not hold a user gesture.
     if (event.type() == PlatformEvent::TouchStart ||
         event.type() == PlatformEvent::TouchMove ||
         (event.type() == PlatformEvent::TouchEnd && m_touchScrollStarted)) {
       // Collect metrics in userGestureUtilized().
       m_touchSequenceUserGestureToken->setUserGestureUtilizedCallback(this);
     }
   }
@@ skipping 23 matching lines @@
       feature = UseCounter::TouchEndDuringScrollUserGestureUtilized;
       break;
     default:
       NOTREACHED();
       return;
   }
   Deprecation::countDeprecation(m_frame, feature);
 }
 
 }  // namespace blink