Hide fields in SkImageInfo

R=rmistry@google.com
TBR=bsalomon

Author: reed@google.com

Review URL: https://codereview.chromium.org/536003002
diff --git a/tests/RecordReplaceDrawTest.cpp b/tests/RecordReplaceDrawTest.cpp
index 6893876..23bf9ad 100644
--- a/tests/RecordReplaceDrawTest.cpp
+++ b/tests/RecordReplaceDrawTest.cpp
@@ -72,7 +72,7 @@
     const SkPMColor pmcolor = SkPreMultiplyColor(color);
     const SkImageInfo info = SkImageInfo::MakeN32Premul(kWidth, kHeight);
     const size_t rowBytes = info.minRowBytes();
-    const size_t size = rowBytes * info.fHeight;
+    const size_t size = rowBytes * info.height();
 
     SkAutoMalloc addr(size);
     sk_memset32((SkPMColor*)addr.get(), pmcolor, SkToInt(size >> 2));