Roll src/third_party/skia f46c5e8:48305e8

Roll src/third_party/skia f46c5e8:48305e8

Summary of changes available at:
https://chromium.googlesource.com/skia/+log/f46c5e8..48305e8

CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
TBR=herb@google.com

Commits in this roll:
48305e8 halcanary@google.com SkPDF/Deflate: clean up old SkFlate code
a44919e bsalomon@google.com Path stenciling in GrBatch
b32758a msarett@google.com Test scaling for small images
73caadf egdaniel@google.com Try enabling all nanobenches on Nexus7
4f0e047 reed@google.com handle no shader from image in drawAtlas

Committed: https://crrev.com/9b0d473bc3d037cf13c7b9354e8117c193ec59e4
Cr-Commit-Position: refs/heads/master@{#344062}

[skia-deps-roller, 2015-08-18 21:45:43]

The CQ bit was checked by skia-deps-roller@chromium.org

[skia-deps-roller, 2015-08-18 21:45:45]

This roll was created by the Blink AutoRollBot.
    http://www.chromium.org/blink/blinkrollbot

[commit-bot: I haz the power, 2015-08-18 21:46:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1298293002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1298293002/1

[commit-bot: I haz the power, 2015-08-18 22:56:45]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-08-18 22:57:21]

Patchset 1 (id:??) landed as
https://crrev.com/9b0d473bc3d037cf13c7b9354e8117c193ec59e4
Cr-Commit-Position: refs/heads/master@{#344062}