(NOT FOR REVIEW) Distinguish between touch and touchmove handler presence

Source/core/frame/EventHandlerRegistry.cpp

 // Copyright 2014 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 "config.h"
 #include "core/frame/EventHandlerRegistry.h"
 
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLFrameOwnerElement.h"
@@ skipping 38 matching lines @@
 {
     checkConsistency();
 }
 
 bool EventHandlerRegistry::eventTypeToClass(const AtomicString& eventType, EventHandlerClass* result)
 {
     if (eventType == EventTypeNames::scroll) {
         *result = ScrollEvent;
     } else if (eventType == EventTypeNames::wheel || eventType == EventTypeNames::mousewheel) {
         *result = WheelEvent;
+    } else if (eventType == EventTypeNames::touchmove || eventType == EventTypeNames::pointermove) {
+        *result = TouchMoveEvent;
     } else if (isTouchEventType(eventType)) {
         *result = TouchEvent;
     } else if (isPointerEventType(eventType)) {
         // The EventHandlerClass is still TouchEvent below since we are firing PointerEvents only from
         // EventHandler::handleTouchEvent for now. See crbug.com/476565.
         *result = TouchEvent;
 #if ENABLE(ASSERT)
     } else if (eventType == EventTypeNames::load || eventType == EventTypeNames::mousemove || eventType == EventTypeNames::touchstart) {
         *result = EventsForTesting;
 #endif
@@ skipping 134 matching lines @@
         if (scrollingCoordinator)
             scrollingCoordinator->updateHaveScrollEventHandlers();
         break;
     case WheelEvent:
         if (scrollingCoordinator)
             scrollingCoordinator->updateHaveWheelEventHandlers();
         break;
     case TouchEvent:
         m_frameHost->chromeClient().needTouchEvents(hasActiveHandlers);
         break;
+    case TouchMoveEvent:
+        m_frameHost->chromeClient().needTouchMoveEvents(hasActiveHandlers);
+        break;
 #if ENABLE(ASSERT)
     case EventsForTesting:
         break;
 #endif
     default:
         ASSERT_NOT_REACHED();
         break;
     }
 }
 
 void EventHandlerRegistry::notifyDidAddOrRemoveEventHandlerTarget(EventHandlerClass handlerClass)
 {
     ScrollingCoordinator* scrollingCoordinator = m_frameHost->page().scrollingCoordinator();
-    if (scrollingCoordinator && handlerClass == TouchEvent)
+    if (scrollingCoordinator && (handlerClass == TouchEvent || handlerClass == TouchMoveEvent))
         scrollingCoordinator->touchEventTargetRectsDidChange();
 }
 
 DEFINE_TRACE(EventHandlerRegistry)
 {
     visitor->trace(m_frameHost);
     visitor->template registerWeakMembers<EventHandlerRegistry, &EventHandlerRegistry::clearWeakMembers>(this);
 }
 
 void EventHandlerRegistry::clearWeakMembers(Visitor* visitor)
@@ skipping 60 matching lines @@
                 ASSERT(window->frame());
                 ASSERT(window->frame()->host());
                 ASSERT(window->frame()->host() == m_frameHost);
             }
         }
     }
 #endif // ENABLE(ASSERT)
 }
 
 } // namespace blink