Revert of Untouch out of bound pixels for CopyTexSubImage2D

Revert of Untouch out of bound pixels for CopyTexSubImage2D (patchset #4 id:60001 of https://codereview.chromium.org/1586053002/ )

Reason for revert:
This change breaks blink layout test fast/canvas/webgl/uninitialized-test.html
Example of a failed run: https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/59669

Original issue's description:
> Untouch out of bound pixels for CopyTexSubImage2D
>
> CopyTexSubImage2D is defined not to touch the corresponding destination
> range for any pixel outside the bound framebuffer. This CL removes code
> which wrongly clears subregion of destination texture.
>
> BUG=577357
>
> Committed: https://crrev.com/98bcf19d91d046e9e04d820d9a8479e07b27834a
> Cr-Commit-Position: refs/heads/master@{#370332}

TBR=kbr@chromium.org,zmo@chromium.org,bajones@chromium.org,yunchao.he@intel.com,qiankun.miao@intel.com
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577357
Committed: https://crrev.com/6386e103ff7570695c27c7a9a69c4f21e74f3fa3
Cr-Commit-Position: refs/heads/master@{#370401}

[Justin Novosad, 2016-01-20 15:35:38]

Created Revert of Untouch out of bound pixels for CopyTexSubImage2D

[commit-bot: I haz the power, 2016-01-20 15:36:01]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1612473002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1612473002/1

[commit-bot: I haz the power, 2016-01-20 15:36:54]

Description was changed from

==========
Revert of Untouch out of bound pixels for CopyTexSubImage2D (patchset #4
id:60001 of https://codereview.chromium.org/1586053002/ )

Reason for revert:
This change breaks blink layout test fast/canvas/webgl/uninitialized-test.html
Example of a failed run:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/5...

Original issue's description:
> Untouch out of bound pixels for CopyTexSubImage2D
> 
> CopyTexSubImage2D is defined not to touch the corresponding destination
> range for any pixel outside the bound framebuffer. This CL removes code
> which wrongly clears subregion of destination texture.
> 
> BUG=577357
> 
> Committed: https://crrev.com/98bcf19d91d046e9e04d820d9a8479e07b27834a
> Cr-Commit-Position: refs/heads/master@{#370332}

TBR=kbr@chromium.org,zmo@chromium.org,bajones@chromium.org,yunchao.he@intel.c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577357
==========

to

==========
Revert of Untouch out of bound pixels for CopyTexSubImage2D (patchset #4
id:60001 of https://codereview.chromium.org/1586053002/ )

Reason for revert:
This change breaks blink layout test fast/canvas/webgl/uninitialized-test.html
Example of a failed run:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/5...

Original issue's description:
> Untouch out of bound pixels for CopyTexSubImage2D
> 
> CopyTexSubImage2D is defined not to touch the corresponding destination
> range for any pixel outside the bound framebuffer. This CL removes code
> which wrongly clears subregion of destination texture.
> 
> BUG=577357
> 
> Committed: https://crrev.com/98bcf19d91d046e9e04d820d9a8479e07b27834a
> Cr-Commit-Position: refs/heads/master@{#370332}

TBR=kbr@chromium.org,zmo@chromium.org,bajones@chromium.org,yunchao.he@intel.c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577357
==========

[commit-bot: I haz the power, 2016-01-20 15:36:54]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-01-20 15:38:17]

Description was changed from

==========
Revert of Untouch out of bound pixels for CopyTexSubImage2D (patchset #4
id:60001 of https://codereview.chromium.org/1586053002/ )

Reason for revert:
This change breaks blink layout test fast/canvas/webgl/uninitialized-test.html
Example of a failed run:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/5...

Original issue's description:
> Untouch out of bound pixels for CopyTexSubImage2D
> 
> CopyTexSubImage2D is defined not to touch the corresponding destination
> range for any pixel outside the bound framebuffer. This CL removes code
> which wrongly clears subregion of destination texture.
> 
> BUG=577357
> 
> Committed: https://crrev.com/98bcf19d91d046e9e04d820d9a8479e07b27834a
> Cr-Commit-Position: refs/heads/master@{#370332}

TBR=kbr@chromium.org,zmo@chromium.org,bajones@chromium.org,yunchao.he@intel.c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577357
==========

to

==========
Revert of Untouch out of bound pixels for CopyTexSubImage2D (patchset #4
id:60001 of https://codereview.chromium.org/1586053002/ )

Reason for revert:
This change breaks blink layout test fast/canvas/webgl/uninitialized-test.html
Example of a failed run:
https://build.chromium.org/p/chromium.webkit/builders/WebKit%20Linux/builds/5...

Original issue's description:
> Untouch out of bound pixels for CopyTexSubImage2D
>
> CopyTexSubImage2D is defined not to touch the corresponding destination
> range for any pixel outside the bound framebuffer. This CL removes code
> which wrongly clears subregion of destination texture.
>
> BUG=577357
>
> Committed: https://crrev.com/98bcf19d91d046e9e04d820d9a8479e07b27834a
> Cr-Commit-Position: refs/heads/master@{#370332}

TBR=kbr@chromium.org,zmo@chromium.org,bajones@chromium.org,yunchao.he@intel.c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577357

Committed: https://crrev.com/6386e103ff7570695c27c7a9a69c4f21e74f3fa3
Cr-Commit-Position: refs/heads/master@{#370401}
==========

[commit-bot: I haz the power, 2016-01-20 15:38:18]

Patchset 1 (id:??) landed as
https://crrev.com/6386e103ff7570695c27c7a9a69c4f21e74f3fa3
Cr-Commit-Position: refs/heads/master@{#370401}

[Zhenyao Mo, 2016-01-20 20:21:27]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1609983003/ by zmo@chromium.org.

The reason for reverting is: Reland the reverted CL because the failing layout
test has been removed in https://codereview.chromium.org/1601093008/.