Delay instantiating InputDeviceCapabilities until accessed.

third_party/WebKit/Source/web/WebFormControlElement.cpp

 /*
  * Copyright (C) 2010 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.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 76 matching lines @@
   else if (isHTMLTextAreaElement(*m_private))
     unwrap<HTMLTextAreaElement>()->setValue(
         value, sendEvents ? DispatchInputAndChangeEvent : DispatchNoEvent);
   else if (isHTMLSelectElement(*m_private))
     unwrap<HTMLSelectElement>()->setValue(value, sendEvents);
 }
 
 void WebFormControlElement::setAutofillValue(const WebString& value) {
   // The input and change events will be sent in setValue.
   if (isHTMLInputElement(*m_private) || isHTMLTextAreaElement(*m_private)) {
-    if (!focused())
+    if (!focused()) {
       unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward,
-                                            nullptr);
+                                            InputDeviceCapabilities::Null);
+    }
     unwrap<Element>()->dispatchScopedEvent(
         Event::createBubble(EventTypeNames::keydown));
     unwrap<TextControlElement>()->setValue(value, DispatchInputAndChangeEvent);
     unwrap<Element>()->dispatchScopedEvent(
         Event::createBubble(EventTypeNames::keyup));
-    if (!focused())
+    if (!focused()) {
       unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward,
-                                           nullptr);
+                                           InputDeviceCapabilities::Null);
+    }
   } else if (isHTMLSelectElement(*m_private)) {
-    if (!focused())
+    if (!focused()) {
       unwrap<Element>()->dispatchFocusEvent(nullptr, WebFocusTypeForward,
-                                            nullptr);
+                                            InputDeviceCapabilities::Null);
+    }
     unwrap<HTMLSelectElement>()->setValue(value, true);
-    if (!focused())
+    if (!focused()) {
       unwrap<Element>()->dispatchBlurEvent(nullptr, WebFocusTypeForward,
-                                           nullptr);
+                                           InputDeviceCapabilities::Null);
+    }
   }
 }
 
 WebString WebFormControlElement::value() const {
   if (isHTMLInputElement(*m_private))
     return constUnwrap<HTMLInputElement>()->value();
   if (isHTMLTextAreaElement(*m_private))
     return constUnwrap<HTMLTextAreaElement>()->value();
   if (isHTMLSelectElement(*m_private))
     return constUnwrap<HTMLSelectElement>()->value();
@@ skipping 85 matching lines @@
     HTMLFormControlElement* elem) {
   m_private = elem;
   return *this;
 }
 
 WebFormControlElement::operator HTMLFormControlElement*() const {
   return toHTMLFormControlElement(m_private.get());
 }
 
 }  // namespace blink