Set selection to INPUT/TEXTAREA before dispatching 'focus' event.

third_party/WebKit/Source/core/html/HTMLTextAreaElement.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, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 233 matching lines @@
 void HTMLTextAreaElement::updateFocusAppearance(SelectionBehaviorOnFocus selectionBehavior)
 {
     switch (selectionBehavior) {
     case SelectionBehaviorOnFocus::Reset:
         setSelectionRange(0, 0, SelectionHasNoDirection, NotDispatchSelectEvent);
         break;
     case SelectionBehaviorOnFocus::Restore:
         restoreCachedSelection();
         break;
     case SelectionBehaviorOnFocus::None:
-        // |None| is used only for FocusController::setFocusedElement and
-        // Document::setFocusedElement, and they don't call
-        // updateFocusAppearance().
-        ASSERT_NOT_REACHED();
+        return;
     }
     if (document().frame())
         document().frame()->selection().revealSelection();
 }
 
 void HTMLTextAreaElement::defaultEventHandler(Event* event)
 {
     if (layoutObject() && (event->isMouseEvent() || event->isDragEvent() || event->hasInterface(EventNames::WheelEvent) || event->type() == EventTypeNames::blur))
         forwardEvent(event);
     else if (layoutObject() && event->isBeforeTextInsertedEvent())
@@ skipping 386 matching lines @@
 
 void HTMLTextAreaElement::copyNonAttributePropertiesFromElement(const Element& source)
 {
     const HTMLTextAreaElement& sourceElement = static_cast<const HTMLTextAreaElement&>(source);
     setValueCommon(sourceElement.value(), DispatchNoEvent, SetSeletion);
     m_isDirty = sourceElement.m_isDirty;
     HTMLTextFormControlElement::copyNonAttributePropertiesFromElement(source);
 }
 
 } // namespace blink