SkPictureShader should handle negative scaling gracefully.

SkPictureShader should handle negative scaling gracefully.

Let's not choke on inverted tiles.

BUG=chromium:447707
R=robertphillips@google.com,reed@google.com

Committed: https://skia.googlesource.com/skia/+/b0878797b45f93b3bfe6084094c74affd10207df

[robertphillips, 2015-01-15 16:39:17]

lgtm

[f(malita), 2015-01-15 16:54:39]

The CQ bit was checked by fmalita@chromium.org

[commit-bot: I haz the power, 2015-01-15 16:55:03]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/852213002/20001

[commit-bot: I haz the power, 2015-01-15 18:16:45]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-01-15 18:16:46]

Failed to apply patch for expectations/gm/ignored-tests.txt:
While running git apply --index -3 -p1;
  error: patch failed: expectations/gm/ignored-tests.txt:46
  Falling back to three-way merge...
  Applied patch to 'expectations/gm/ignored-tests.txt' with conflicts.
  U expectations/gm/ignored-tests.txt

Patch:       expectations/gm/ignored-tests.txt
Index: expectations/gm/ignored-tests.txt
diff --git a/expectations/gm/ignored-tests.txt
b/expectations/gm/ignored-tests.txt
index
c5ff2831c2b11581af09229dc215fe39bbc691f5..ddf2342052340da3f724ed2971e1b1037b0ce111
100644
--- a/expectations/gm/ignored-tests.txt
+++ b/expectations/gm/ignored-tests.txt
@@ -46,3 +46,6 @@ downsamplebitmap_image_medium_mandrill_132x132_12x12
 downsamplebitmap_checkerboard_medium_512_256
 downsamplebitmap_text_medium_72.00pt
 filterindiabox
+
+# fmalita - rebaseline for http://crbug.com/447707
+pictureshader

[f(malita), 2015-01-15 18:36:07]

The CQ bit was checked by fmalita@chromium.org

[commit-bot: I haz the power, 2015-01-15 18:36:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/852213002/40001

[commit-bot: I haz the power, 2015-01-15 18:46:00]

Committed patchset #3 (id:40001) as
https://skia.googlesource.com/skia/+/b0878797b45f93b3bfe6084094c74affd10207df