Remove a part of type checking predicates of HTMLInputElement.

Source/core/page/EventHandler.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2012 Digia Plc. and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 12 matching lines @@
  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/page/EventHandler.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/HTMLNames.h"
+#include "core/InputTypeNames.h"
 #include "core/SVGNames.h"
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DataTransfer.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentMarkerController.h"
 #include "core/dom/Fullscreen.h"
 #include "core/dom/NodeRenderingTraversal.h"
 #include "core/dom/TouchList.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
@@ skipping 925 matching lines @@
 
 static LocalFrame* subframeForHitTestResult(const MouseEventWithHitTestResults& hitTestResult)
 {
     if (!hitTestResult.isOverWidget())
         return 0;
     return subframeForTargetNode(hitTestResult.targetNode());
 }
 
 static bool isSubmitImage(Node* node)
 {
-    return isHTMLInputElement(node) && toHTMLInputElement(node)->isImageButton();
+    return isHTMLInputElement(node) && toHTMLInputElement(node)->type() == InputTypeNames::image;
 }
 
 bool EventHandler::useHandCursor(Node* node, bool isOverLink)
 {
     if (!node)
         return false;
 
     return ((isOverLink || isSubmitImage(node)) && !node->hasEditableStyle());
 }
 
@@ skipping 2892 matching lines @@
 unsigned EventHandler::accessKeyModifiers()
 {
 #if OS(MACOSX)
     return PlatformEvent::CtrlKey | PlatformEvent::AltKey;
 #else
     return PlatformEvent::AltKey;
 #endif
 }
 
 } // namespace blink