IWYU: 'core' target, files starting A-C.

TBR=reed@google.com
Verbal lgtm, does not change API.

Committed: https://skia.googlesource.com/skia/+/7403d87db8e43d4c2b5b25ac22a0ebc22bd09d69

Review URL: https://codereview.chromium.org/1265033002
diff --git a/samplecode/SampleIdentityScale.cpp b/samplecode/SampleIdentityScale.cpp
index 4450d61..3302d27 100644
--- a/samplecode/SampleIdentityScale.cpp
+++ b/samplecode/SampleIdentityScale.cpp
@@ -13,6 +13,7 @@
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkImageDecoder.h"
+#include "SkPath.h"
 #include "SkRandom.h"
 #include "SkStream.h"
 #include "SkTime.h"