INPUT element: Implicit form submission should reset setTextAsOfLastFormControlChangeEvent.

third_party/WebKit/Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved.
@@ skipping 1247 matching lines @@
                                                 wrapPersistent(this)));
     }
     // Form submission finishes editing, just as loss of focus does.
     // If there was a change, send the event now.
     if (wasChangedSinceLastFormControlChangeEvent())
       dispatchFormControlChangeEvent();
 
     HTMLFormElement* formForSubmission = m_inputTypeView->formForSubmission();
     // Form may never have been present, or may have been destroyed by code
     // responding to the change event.
-    if (formForSubmission)
+    if (formForSubmission) {
       formForSubmission->submitImplicitly(evt, canTriggerImplicitSubmission());
+      // We treat implicit submission is something like blur()-then-focus(). So
+      // we reset the last value. crbug.com/695349.
+      setTextAsOfLastFormControlChangeEvent(value());
+    }
 
     evt->setDefaultHandled();
     return;
   }
 
   if (evt->isBeforeTextInsertedEvent())
     m_inputTypeView->handleBeforeTextInsertedEvent(
         static_cast<BeforeTextInsertedEvent*>(evt));
 
   if (evt->isMouseEvent() && evt->type() == EventTypeNames::mousedown) {
@@ skipping 595 matching lines @@
 
 bool HTMLInputElement::hasFallbackContent() const {
   return m_inputTypeView->hasFallbackContent();
 }
 
 void HTMLInputElement::setFilesFromPaths(const Vector<String>& paths) {
   return m_inputType->setFilesFromPaths(paths);
 }
 
 }  // namespace blink