mac: Let Carbon plugin stuff buid with the 10.7 SDK

webkit/plugins/npapi/webplugin_delegate_impl_mac.mm

Index: webkit/plugins/npapi/webplugin_delegate_impl_mac.mm
diff --git a/webkit/plugins/npapi/webplugin_delegate_impl_mac.mm b/webkit/plugins/npapi/webplugin_delegate_impl_mac.mm
index 644b089a305be3f21850cc55471e6df210b5de55..95636912eb5acc333ecca93e8b8fa56e8c08d79d 100644
--- a/webkit/plugins/npapi/webplugin_delegate_impl_mac.mm
+++ b/webkit/plugins/npapi/webplugin_delegate_impl_mac.mm
@@ -43,6 +43,15 @@ using WebKit::WebInputEvent;
 using WebKit::WebMouseEvent;
 using WebKit::WebMouseWheelEvent;
 
+#ifndef NP_NO_CARBON
+// QuickdrawAPI.h is no longer included in the 10.7 SDK, but the symbols are
+// still exported by QD.framework (a subframework of ApplicationServices).
+// http://developer.apple.com/legacy/mac/library/documentation/Carbon/reference/QuickDraw_Ref/QuickDraw_Ref.pdf
+extern "C" void SetRect(
+    Rect* r, short left, short top, short right, short bottom);
+extern "C" void OffsetRect(Rect* r, short dh, short dv);
+#endif
+
 // Important implementation notes: The Mac definition of NPAPI, particularly
 // the distinction between windowed and windowless modes, differs from the
 // Windows and Linux definitions.  Most of those differences are