Send mouse events for disabled form controls.

third_party/WebKit/Source/core/events/EventPath.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 358 matching lines @@
 
     RelatedTargetMap related_node_map;
     BuildRelatedNodeMap(*target_node, related_node_map);
     for (size_t j = 0; j < tree_scopes.size(); ++j) {
       adjusted_touch_list[j]->Append(touch.CloneWithNewTarget(
           FindRelatedNode(*tree_scopes[j], related_node_map)));
     }
   }
 }
 
+bool EventPath::DisabledFormControlExistsInPath() const {
+  for (const auto& context : node_event_contexts_) {
+    const Node* target_node = context.GetNode();
+    if (target_node && IsDisabledFormControl(target_node))
+      return true;
+  }
+  return false;
+}
+
 NodeEventContext& EventPath::TopNodeEventContext() {
   DCHECK(!IsEmpty());
   return Last();
 }
 
 void EventPath::EnsureWindowEventContext() {
   DCHECK(event_);
   if (!window_event_context_)
     window_event_context_ =
         new WindowEventContext(*event_, TopNodeEventContext());
@@ skipping 14 matching lines @@
 
 DEFINE_TRACE(EventPath) {
   visitor->Trace(node_event_contexts_);
   visitor->Trace(node_);
   visitor->Trace(event_);
   visitor->Trace(tree_scope_event_contexts_);
   visitor->Trace(window_event_context_);
 }
 
 }  // namespace blink