Remove a part of type checking predicates of HTMLInputElement.

Source/core/page/DragController.cpp

 /*
  * Copyright (C) 2007, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Google Inc.
  *
  * 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 11 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/DragController.h"
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/HTMLNames.h"
+#include "core/InputTypeNames.h"
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DataTransfer.h"
 #include "core/clipboard/DataTransferAccessPolicy.h"
 #include "core/dom/Document.h"
 #include "core/dom/DocumentFragment.h"
 #include "core/dom/Element.h"
 #include "core/dom/Node.h"
 #include "core/dom/Text.h"
 #include "core/dom/shadow/ShadowRoot.h"
 #include "core/editing/Editor.h"
@@ skipping 253 matching lines @@
     m_documentIsHandlingDrag = tryDocumentDrag(dragData, m_dragDestinationAction, dragSession);
     if (!m_documentIsHandlingDrag && (m_dragDestinationAction & DragDestinationActionLoad))
         dragSession.operation = operationForLoad(dragData);
     return dragSession;
 }
 
 static HTMLInputElement* asFileInput(Node* node)
 {
     ASSERT(node);
     for (; node; node = node->shadowHost()) {
-        if (isHTMLInputElement(*node) && toHTMLInputElement(node)->isFileUpload())
+        if (isHTMLInputElement(*node) && toHTMLInputElement(node)->type() == InputTypeNames::file)
             return toHTMLInputElement(node);
     }
     return 0;
 }
 
 // This can return null if an empty document is loaded.
 static Element* elementUnderMouse(Document* documentUnderMouse, const IntPoint& p)
 {
     LocalFrame* frame = documentUnderMouse->frame();
     float zoomFactor = frame ? frame->pageZoomFactor() : 1;
@@ skipping 649 matching lines @@
 
 void DragController::trace(Visitor* visitor)
 {
     visitor->trace(m_page);
     visitor->trace(m_documentUnderMouse);
     visitor->trace(m_dragInitiator);
     visitor->trace(m_fileInputElementUnderMouse);
 }
 
 } // namespace blink