Clean up drawing buffer code.

Clean up drawing buffer code.

Since we no longer support the path where packed_depth_stencil isn't
supported.

BUG=570453
TEST=build, no behavior change
R=kbr@chromium.org

Committed: https://crrev.com/d89c4e01716053d7bd4642f42c8d4a1ecefcaf92
Cr-Commit-Position: refs/heads/master@{#374711}

[Zhenyao Mo, 2016-02-10 17:59:39]

The CQ bit was checked by zmo@chromium.org to run a CQ dry run

[Zhenyao Mo, 2016-02-10 17:59:47]

kbr: PTAL

[commit-bot: I haz the power, 2016-02-10 18:00:07]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1683213002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1683213002/1

[Ken Russell (switch to Gerrit), 2016-02-10 18:04:31]

This is great. LGTM. One minor comment correction.

https://codereview.chromium.org/1683213002/diff/1/third_party/WebKit/Source/p...
File third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.h (right):

https://codereview.chromium.org/1683213002/diff/1/third_party/WebKit/Source/p...
third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.h:322: // This is
used when we only request depth and Depth24 extension is available.
"Depth24 extension" -> "the OES_depth24 extension"

[Zhenyao Mo, 2016-02-10 18:21:18]

https://codereview.chromium.org/1683213002/diff/1/third_party/WebKit/Source/p...
File third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.h (right):

https://codereview.chromium.org/1683213002/diff/1/third_party/WebKit/Source/p...
third_party/WebKit/Source/platform/graphics/gpu/DrawingBuffer.h:322: // This is
used when we only request depth and Depth24 extension is available.
On 2016/02/10 18:04:31, Ken Russell wrote:
> "Depth24 extension" -> "the OES_depth24 extension"

Done.

[Zhenyao Mo, 2016-02-10 18:21:22]

The CQ bit was checked by zmo@chromium.org

[Zhenyao Mo, 2016-02-10 18:21:22]

The patchset sent to the CQ was uploaded after l-g-t-m from kbr@chromium.org
Link to the patchset: https://codereview.chromium.org/1683213002/#ps20001
(title: " ")

[commit-bot: I haz the power, 2016-02-10 18:23:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1683213002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1683213002/20001

[commit-bot: I haz the power, 2016-02-10 20:24:04]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-02-16 22:30:44]

Description was changed from

==========
Clean up drawing buffer code.

Since we no longer support the path where packed_depth_stencil isn't
supported.

BUG=570453
TEST=build, no behavior change
R=kbr@chromium.org
==========

to

==========
Clean up drawing buffer code.

Since we no longer support the path where packed_depth_stencil isn't
supported.

BUG=570453
TEST=build, no behavior change
R=kbr@chromium.org

Committed: https://crrev.com/d89c4e01716053d7bd4642f42c8d4a1ecefcaf92
Cr-Commit-Position: refs/heads/master@{#374711}
==========

[commit-bot: I haz the power, 2016-02-16 22:30:45]

Patchset 2 (id:??) landed as
https://crrev.com/d89c4e01716053d7bd4642f42c8d4a1ecefcaf92
Cr-Commit-Position: refs/heads/master@{#374711}