Send mouse events for disabled form controls.

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

Index: third_party/WebKit/Source/core/events/EventPath.cpp
diff --git a/third_party/WebKit/Source/core/events/EventPath.cpp b/third_party/WebKit/Source/core/events/EventPath.cpp
index ee57ba46b68ebb858cc5b297526e46009a83d31c..8bd40282fe7a70298b079e1d935db4e136105d3a 100644
--- a/third_party/WebKit/Source/core/events/EventPath.cpp
+++ b/third_party/WebKit/Source/core/events/EventPath.cpp
@@ -376,6 +376,15 @@ void EventPath::AdjustTouchList(
   }
 }
 
+bool EventPath::DisabledFormControlExistsInPath() {
+  for (size_t i = 0; i < size(); ++i) {

[jbroman, 2017/04/24 18:19:49]

super-nit: I'd ordinarily suggest a range-based for loop over
node_event_contexts_, or maybe even std::any, here, but this seems consistent
with existing code, so it doesn't matter.

[dtapuska, 2017/04/24 19:14:39]

Done.

+    Node* target_node = at(i).GetNode();
+    if (target_node && IsDisabledFormControl(target_node))
+      return true;
+  }
+  return false;
+}
+
 NodeEventContext& EventPath::TopNodeEventContext() {
   DCHECK(!IsEmpty());
   return Last();