Clear the state of scroll and selection onmouseup

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
@@ skipping 577 matching lines @@
 
   // For 4th/5th button in the mouse since Chrome does not yet send
   // button value to Blink but in some cases it does send the event.
   // This check is needed to suppress such an event (crbug.com/574959)
   if (mouse_event.button == WebPointerProperties::Button::kNoButton)
     return WebInputEventResult::kHandledSuppressed;
 
   if (event_handler_will_reset_capturing_mouse_events_node_)
     capturing_mouse_events_node_ = nullptr;
   mouse_event_manager_->HandleMousePressEventUpdateStates(mouse_event);
-  GetSelectionController().SetMouseDownMayStartSelect(false);
   if (!frame_->View())
     return WebInputEventResult::kNotHandled;
 
   HitTestRequest request(HitTestRequest::kActive);
   // Save the document point we generate in case the window coordinate is
   // invalidated by what happens when we dispatch the event.
   LayoutPoint document_point = frame_->View()->RootFrameToContents(
       FlooredIntPoint(mouse_event.PositionInRootFrame()));
   MouseEventWithHitTestResults mev =
       frame_->GetDocument()->PerformMouseEventHitTest(request, document_point,
@@ skipping 389 matching lines @@
 
   WebInputEventResult click_event_result =
       mouse_release_target ? mouse_event_manager_->DispatchMouseClickIfNeeded(
                                  mev, *mouse_release_target)
                            : WebInputEventResult::kNotHandled;
 
   scroll_manager_->ClearResizeScrollableArea(false);
 
   if (event_result == WebInputEventResult::kNotHandled)
     event_result = mouse_event_manager_->HandleMouseReleaseEvent(mev);
-  mouse_event_manager_->ClearDragHeuristicState();
 
-  mouse_event_manager_->InvalidateClick();
+  mouse_event_manager_->HandleMouseReleaseEventUpdateStates();
 
   return EventHandlingUtil::MergeEventResult(click_event_result, event_result);
 }
 
 static bool TargetIsFrame(Node* target, LocalFrame*& frame) {
   if (!IsHTMLFrameElementBase(target))
     return false;
 
   // Cross-process drag and drop is not yet supported.
   if (ToHTMLFrameElementBase(target)->ContentFrame() &&
@@ skipping 1096 matching lines @@
     MouseEventWithHitTestResults& mev,
     LocalFrame* subframe) {
   WebInputEventResult result =
       subframe->GetEventHandler().HandleMouseReleaseEvent(mev.Event());
   if (result != WebInputEventResult::kNotHandled)
     return result;
   return WebInputEventResult::kHandledSystem;
 }
 
 }  // namespace blink