add option to supress prints on context

include/gpu/GrTypesPriv.h

Index: include/gpu/GrTypesPriv.h
diff --git a/include/gpu/GrTypesPriv.h b/include/gpu/GrTypesPriv.h
index 412de897c6543b851dad3134020c0f9d1788deca..eaf1aa4050615805910e6719d9baa2f1343527ba 100644
--- a/include/gpu/GrTypesPriv.h
+++ b/include/gpu/GrTypesPriv.h
@@ -264,4 +264,14 @@ private:
     SkIRect fRect;
 };
 
+#ifdef SK_DEBUG
+// Takes a pointer to a GrContext, and will suppress prints if required
+#define GrContextDebugf(context, ...) \
+    if (!context->suppressPrints()) {         \
+        SkDebugf(__VA_ARGS__);      \
+    }
+#else
+#define GrContextDebugf(context, ...)
+#endif
+
 #endif