isFileUploadButton 1385 Source/core/accessibility/AXNodeObject.cpp     if (isFileUploadButton())
isFileUploadButton  321 Source/core/accessibility/AXObject.h     virtual bool isFileUploadButton() const { return false; }
isFileUploadButton  326 Source/core/accessibility/AXRenderObject.cpp     if (isFileUploadButton())
isFileUploadButton   98 Source/core/accessibility/AXRenderObject.h     virtual bool isFileUploadButton() const OVERRIDE;