Oilpan: fix build after r180238

R=haraken
BUG=
NOTRY=true

Review URL: https://codereview.chromium.org/471823002

git-svn-id: svn://svn.chromium.org/blink/trunk@180242 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/svg/SVGElementRareData.cpp

@@ -8,6 +8,7 @@
 #include "core/css/CSSCursorImageValue.h"
 #include "core/css/resolver/StyleResolver.h"
 #include "core/dom/Document.h"
+#include "core/svg/SVGCursorElement.h"
 
 namespace blink {