Add some missing header include guards
BUG=skia:
R=reed@google.com, bsalomon@google.com, tfarina@chromium.org
Author: george@mozilla.com
Review URL: https://codereview.chromium.org/325843002
diff --git a/src/gpu/GrReducedClip.h b/src/gpu/GrReducedClip.h
index cbb0346..e3a28cc 100644
--- a/src/gpu/GrReducedClip.h
+++ b/src/gpu/GrReducedClip.h
@@ -6,6 +6,9 @@
* found in the LICENSE file.
*/
+#ifndef GrReducedClip_DEFINED
+#define GrReducedClip_DEFINED
+
#include "SkClipStack.h"
#include "SkTLList.h"
@@ -41,3 +44,5 @@
bool* requiresAA = NULL);
} // namespace GrReducedClip
+
+#endif