Remove SkImageMinRowBytes

As stated in the comments in crrev.com/1379193002, this method name is
misleading. It returns a larger number than the minimum rowbytes - it
increases to the next four-byte alignment. This has the effect that the
one place that calls it does not support 565 (which is not already
four-byte aligned), but does not serve any other purpose. Remove it and
the only call-site.

BUG=skia:4396
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1528383004

Review URL: https://codereview.chromium.org/1528383004

1 files changed, 21 insertions, 0 deletions

diff --git a/tests/ImageFrom565Bitmap.cpp b/tests/ImageFrom565Bitmap.cpp
new file mode 100644
index 0000000000..d910a47560
--- /dev/null
+++ b/tests/ImageFrom565Bitmap.cpp
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkBitmap.h"
+#include "SkImageInfo.h"
+#include "SkImage.h"
+#include "Test.h"
+
+DEF_TEST(ImageFrom565Bitmap, r) {
+    SkBitmap bm;
+    bm.allocPixels(SkImageInfo::Make(
+        5, 7, kRGB_565_SkColorType, kOpaque_SkAlphaType));
+    SkAutoLockPixels autoLockPixels(bm);
+    bm.eraseColor(SK_ColorBLACK);
+    SkAutoTUnref<SkImage> img(SkImage::NewFromBitmap(bm));
+    REPORTER_ASSERT(r, img.get() != nullptr);
+}