Revert of cc: Add mailbox support to ResourceProvider write locks.

Revert of cc: Add mailbox support to ResourceProvider write locks. (patchset #5 id:70001 of https://codereview.chromium.org/2081883002/ )

Reason for revert:
Causing canvas crashes - bug 623101

Original issue's description:
> Reland of cc: Add mailbox support to ResourceProvider write locks. (patchset #24 id:460001 of https://codereview.chromium.org/1951193002/ )
>
> Original issue's description:
> > cc: Add mailbox support to ResourceProvider write locks.
> >
> > This adds support for mailboxes to ScopedWriteLockGL. Using the mailbox
> > requires using ScopedTextureProvider/ScopedSkSurfaceProvider which
> > ensures that the texture id for the mailbox is destroyed after use on
> > the worker context.
> >
> > This CL also includes the following cleanup:
> > 1. ResourceProvider locks don't keep resource pointers around.
> > 2. ScopedSamplerGL does not inherit from ScopedReadLockGL.
> > 3. GpuRasterizer is folded back into GpuRasterBufferProvider.
> > 4. TileTaskManager does not own RasterBufferProvider.
> >
> > BUG=525259
> > R=piman@chromium.org
> > CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> >
> > Committed: https://crrev.com/5fa5dbdf25bbec21b84f752d3f0642cd184467e2
> > Committed: https://crrev.com/3b0f0b8d3db0a9f66864d5b7da87c82f49e74a29
> > Cr-Original-Commit-Position: refs/heads/master@{#398204}
> > Cr-Commit-Position: refs/heads/master@{#399983}
>
> R=piman@chromium.org
> BUG=525259, 621422, 621130
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/b3071e4aabd0cb1f29cd624e77eb5f40722be965
> Cr-Commit-Position: refs/heads/master@{#401717}

TBR=piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=525259, 621422, 621130
Committed: https://crrev.com/4d27a5a3c38c34bfa34e9937ef8e3ea3831d2194
Cr-Commit-Position: refs/heads/master@{#402290}

[sunnyps, 2016-06-27 20:06:37]

The CQ bit was checked by sunnyps@chromium.org

[sunnyps, 2016-06-27 20:06:38]

Created Revert of cc: Add mailbox support to ResourceProvider write locks.

[commit-bot: I haz the power, 2016-06-27 20:07:16]

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

[commit-bot: I haz the power, 2016-06-27 21:34:38]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-27 21:36:01]

Description was changed from

==========
Revert of cc: Add mailbox support to ResourceProvider write locks. (patchset #5
id:70001 of https://codereview.chromium.org/2081883002/ )

Reason for revert:
Causing canvas crashes - bug 623101

Original issue's description:
> Reland of cc: Add mailbox support to ResourceProvider write locks. (patchset
#24 id:460001 of https://codereview.chromium.org/1951193002/ )
> 
> Original issue's description:
> > cc: Add mailbox support to ResourceProvider write locks.
> >
> > This adds support for mailboxes to ScopedWriteLockGL. Using the mailbox
> > requires using ScopedTextureProvider/ScopedSkSurfaceProvider which
> > ensures that the texture id for the mailbox is destroyed after use on
> > the worker context.
> >
> > This CL also includes the following cleanup:
> > 1. ResourceProvider locks don't keep resource pointers around.
> > 2. ScopedSamplerGL does not inherit from ScopedReadLockGL.
> > 3. GpuRasterizer is folded back into GpuRasterBufferProvider.
> > 4. TileTaskManager does not own RasterBufferProvider.
> >
> > BUG=525259
> > R=piman@chromium.org
> > CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> >
> > Committed: https://crrev.com/5fa5dbdf25bbec21b84f752d3f0642cd184467e2
> > Committed: https://crrev.com/3b0f0b8d3db0a9f66864d5b7da87c82f49e74a29
> > Cr-Original-Commit-Position: refs/heads/master@{#398204}
> > Cr-Commit-Position: refs/heads/master@{#399983}
> 
> R=piman@chromium.org
> BUG=525259, 621422, 621130
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> 
> Committed: https://crrev.com/b3071e4aabd0cb1f29cd624e77eb5f40722be965
> Cr-Commit-Position: refs/heads/master@{#401717}

TBR=piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=525259, 621422, 621130
==========

to

==========
Revert of cc: Add mailbox support to ResourceProvider write locks. (patchset #5
id:70001 of https://codereview.chromium.org/2081883002/ )

Reason for revert:
Causing canvas crashes - bug 623101

Original issue's description:
> Reland of cc: Add mailbox support to ResourceProvider write locks. (patchset
#24 id:460001 of https://codereview.chromium.org/1951193002/ )
>
> Original issue's description:
> > cc: Add mailbox support to ResourceProvider write locks.
> >
> > This adds support for mailboxes to ScopedWriteLockGL. Using the mailbox
> > requires using ScopedTextureProvider/ScopedSkSurfaceProvider which
> > ensures that the texture id for the mailbox is destroyed after use on
> > the worker context.
> >
> > This CL also includes the following cleanup:
> > 1. ResourceProvider locks don't keep resource pointers around.
> > 2. ScopedSamplerGL does not inherit from ScopedReadLockGL.
> > 3. GpuRasterizer is folded back into GpuRasterBufferProvider.
> > 4. TileTaskManager does not own RasterBufferProvider.
> >
> > BUG=525259
> > R=piman@chromium.org
> > CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
> >
> > Committed: https://crrev.com/5fa5dbdf25bbec21b84f752d3f0642cd184467e2
> > Committed: https://crrev.com/3b0f0b8d3db0a9f66864d5b7da87c82f49e74a29
> > Cr-Original-Commit-Position: refs/heads/master@{#398204}
> > Cr-Commit-Position: refs/heads/master@{#399983}
>
> R=piman@chromium.org
> BUG=525259, 621422, 621130
> CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel
>
> Committed: https://crrev.com/b3071e4aabd0cb1f29cd624e77eb5f40722be965
> Cr-Commit-Position: refs/heads/master@{#401717}

TBR=piman@chromium.org
# Not skipping CQ checks because original CL landed more than 1 days ago.
BUG=525259, 621422, 621130

Committed: https://crrev.com/4d27a5a3c38c34bfa34e9937ef8e3ea3831d2194
Cr-Commit-Position: refs/heads/master@{#402290}
==========

[commit-bot: I haz the power, 2016-06-27 21:36:02]

Patchset 1 (id:??) landed as
https://crrev.com/4d27a5a3c38c34bfa34e9937ef8e3ea3831d2194
Cr-Commit-Position: refs/heads/master@{#402290}

[sunnyps, 2016-06-27 21:38:56]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2101043002/ by sunnyps@chromium.org.

The reason for reverting is: Reland.