Run smooth scroll animations on the compositor when possible

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

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 2018 matching lines @@
 }
 
 WebInputEventResult EventHandler::handleGestureShowPress()
 {
     m_lastShowPressTimestamp = WTF::monotonicallyIncreasingTime();
 
     FrameView* view = m_frame->view();
     if (!view)
         return WebInputEventResult::NotHandled;
     if (ScrollAnimatorBase* scrollAnimator = view->existingScrollAnimator())
-        scrollAnimator->cancelAnimations();
+        scrollAnimator->cancelAnimation();
     const FrameView::ScrollableAreaSet* areas = view->scrollableAreas();
     if (!areas)
         return WebInputEventResult::NotHandled;
     for (const ScrollableArea* scrollableArea : *areas) {
         ScrollAnimatorBase* animator = scrollableArea->existingScrollAnimator();
         if (animator)
-            animator->cancelAnimations();
+            animator->cancelAnimation();
     }
     return WebInputEventResult::NotHandled;
 }
 
 WebInputEventResult EventHandler::handleGestureEvent(const PlatformGestureEvent& gestureEvent)
 {
     // Propagation to inner frames is handled below this function.
     ASSERT(m_frame == m_frame->localFrameRoot());
 
     // Scrolling-related gesture events invoke EventHandler recursively for each frame down
@@ skipping 2084 matching lines @@
 PlatformEvent::Modifiers EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return static_cast<PlatformEvent::Modifiers>(PlatformEvent::CtrlKey | PlatformEvent::AltKey);
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink