Revert of Make SkGraphics::Term a no-op, stop calling it.

include/views/SkEvent.h

Index: include/views/SkEvent.h
diff --git a/include/views/SkEvent.h b/include/views/SkEvent.h
index 0af76fe686cb4dfbeeb4a755714a6975820a6cf1..f4df4482bf7b997141c26746460da30894eef774 100644
--- a/include/views/SkEvent.h
+++ b/include/views/SkEvent.h
@@ -223,7 +223,7 @@
     */
     static void Init();
     /** Global cleanup function for the SkEvent system. Should be called exactly once after
-        all event methods have been called.
+        all event methods have been called, and should be called before calling SkGraphics::Term().
     */
     static void Term();