Move SkNoncopyable to include/private.

Change-Id: I62f60ea52faeebddecacf03d9429ac3f7c516b8e
Reviewed-on: https://skia-review.googlesource.com/141823
Commit-Queue: Ben Wagner <bungeman@google.com>
Reviewed-by: Ben Wagner <bungeman@google.com>
diff --git a/src/shaders/SkShaderBase.h b/src/shaders/SkShaderBase.h
index 9cfca4c..c92beec 100644
--- a/src/shaders/SkShaderBase.h
+++ b/src/shaders/SkShaderBase.h
@@ -12,6 +12,7 @@
 #include "SkFlattenablePriv.h"
 #include "SkMask.h"
 #include "SkMatrix.h"
+#include "SkNoncopyable.h"
 #include "SkShader.h"
 #include "SkTLazy.h"