Step 1 of opts_crc32 rollout.

Step 1 of opts_crc32 rollout.

  - This adds an crc32_sources variable to opts.gypi and hooks it into
    our GYP build with a dummy source file.

Step 2 will hook crc32_sources into Chrome's GN build.
Step 3 will actually land some code using CRC32 instructions.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2259233002

Committed: https://skia.googlesource.com/skia/+/9c3887c975ae00a5c5522c2dfb367d13c0601953

[mtklein_C, 2016-08-19 14:10:22]

Description was changed from

==========
Step 1 of opts_crc32 rollout.

  - This adds an crc32_sources variable to opts.gypi and hooks it into
    our GYP build with a dummy source file.

Step 2 will hook crc32_sources into Chrome's GN build.
Step 3 will actually land some code using CRC32 instructions.
==========

to

==========
Step 1 of opts_crc32 rollout.

  - This adds an crc32_sources variable to opts.gypi and hooks it into
    our GYP build with a dummy source file.

Step 2 will hook crc32_sources into Chrome's GN build.
Step 3 will actually land some code using CRC32 instructions.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2259233002
==========

[mtklein_C, 2016-08-19 14:11:06]

mtklein@chromium.org changed reviewers:
+ msarett@google.com

[mtklein_C, 2016-08-19 14:11:07]

The CQ bit was checked by mtklein@chromium.org

[commit-bot: I haz the power, 2016-08-19 14:11:20]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[msarett, 2016-08-19 15:06:09]

lgtm

[commit-bot: I haz the power, 2016-08-19 15:07:53]

Description was changed from

==========
Step 1 of opts_crc32 rollout.

  - This adds an crc32_sources variable to opts.gypi and hooks it into
    our GYP build with a dummy source file.

Step 2 will hook crc32_sources into Chrome's GN build.
Step 3 will actually land some code using CRC32 instructions.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2259233002
==========

to

==========
Step 1 of opts_crc32 rollout.

  - This adds an crc32_sources variable to opts.gypi and hooks it into
    our GYP build with a dummy source file.

Step 2 will hook crc32_sources into Chrome's GN build.
Step 3 will actually land some code using CRC32 instructions.
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2259233002

Committed:
https://skia.googlesource.com/skia/+/9c3887c975ae00a5c5522c2dfb367d13c0601953
==========

[commit-bot: I haz the power, 2016-08-19 15:07:54]

Committed patchset #1 (id:1) as
https://skia.googlesource.com/skia/+/9c3887c975ae00a5c5522c2dfb367d13c0601953