Remame ImageConstructorImp to JSImageConstructor and move it into its
        own file.

        * GNUmakefile.am:
        * WebCore.pro:
        * WebCore.vcproj/WebCore.vcproj:
        * WebCore.xcodeproj/project.pbxproj:
        * WebCoreSources.bkl:
        * bindings/js/JSImageConstructor.cpp: Copied from bindings/js/kjs_html.cpp.
        (WebCore::JSImageConstructor::JSImageConstructor):
        (WebCore::JSImageConstructor::construct):
        * bindings/js/JSImageConstructor.h: Copied from bindings/js/kjs_html.h.
        * bindings/js/kjs_html.cpp:
        (WebCore::getRuntimeObject): Make this function static since it is only used
        in this file.
        * bindings/js/kjs_html.h:
        * bindings/js/kjs_window.cpp:
        (WebCore::JSDOMWindowBase::getValueProperty):



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@30756 268f45cc-cd09-0410-ab3c-d52691b4dbfc