Revert of Content in disabled input field should not be selectable.

third_party/WebKit/Source/core/dom/Node.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.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 943 matching lines @@
 }
 
 int Node::maxCharacterOffset() const {
   NOTREACHED();
   return 0;
 }
 
 // FIXME: Shouldn't these functions be in the editing code?  Code that asks
 // questions about HTML in the core DOM class is obviously misplaced.
 bool Node::canStartSelection() const {
-  if (isDisabledFormControl(this))
-    return false;
-
   if (hasEditableStyle(*this))
     return true;
 
   if (layoutObject()) {
     const ComputedStyle& style = layoutObject()->styleRef();
     // We allow selections to begin within an element that has
     // -webkit-user-select: none set, but if the element is draggable then
     // dragging should take priority over selection.
     if (style.userDrag() == DRAG_ELEMENT && style.userSelect() == SELECT_NONE)
       return false;
@@ skipping 1516 matching lines @@
   if (node) {
     std::stringstream stream;
     node->printNodePathTo(stream);
     LOG(INFO) << stream.str();
   } else {
     LOG(INFO) << "Cannot showNodePath for <null>";
   }
 }
 
 #endif