Remove GLContextStub::GetExtensions.

Remove GLContextStub::GetExtensions.

This method overrides GLContext::GetExtensions. The GLContext method
will simply call glGetString(GL_EXTENSIONS), which is normally what
you want do to.

The GLContextStub overrides this method to return an empty string,
which means that you are unable to change what extensions will be
returned by glGetString.

There is also a GLContextStubWithExtensions, which overrides
GetExtensions again, providing a way to set the string returned from
GLContext, as well as a version string, but then these strings no
longer match what the calls to glGetString would return, so this isn't
something I want to use in my new test. Instead allow GLContextStub
to be used with an extensions string returned from glGetString
of my choosing.

R=kbr@chromium.org, piman, sievers
BUG=584497
Committed: https://crrev.com/06a9b07727f9548cc408ca9c12a59442d4096254
Cr-Commit-Position: refs/heads/master@{#387524}

[danakj, 2016-04-15 01:28:33]

The CQ bit was checked by danakj@chromium.org

[danakj, 2016-04-15 01:28:37]

The CQ bit was unchecked by danakj@chromium.org

[danakj, 2016-04-15 01:28:41]

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

[commit-bot: I haz the power, 2016-04-15 01:29:01]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1888323002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1888323002/1

[danakj, 2016-04-15 01:29:48]

Im not sure if there's tests that depend on this.. fishing now.

[piman, 2016-04-15 02:00:48]

LGTM if tests pass.

[danakj, 2016-04-15 02:22:16]

The CQ bit was unchecked by danakj@chromium.org

[danakj, 2016-04-15 02:22:20]

The CQ bit was checked by danakj@chromium.org

[commit-bot: I haz the power, 2016-04-15 02:22:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1888323002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1888323002/1

[commit-bot: I haz the power, 2016-04-15 02:26:13]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-04-15 02:30:28]

Description was changed from

==========
Remove GLContextStub::GetExtensions.

This method overrides GLContext::GetExtensions. The GLContext method
will simply call glGetString(GL_EXTENSIONS), which is normally what
you want do to.

The GLContextStub overrides this method to return an empty string,
which means that you are unable to change what extensions will be
returned by glGetString.

There is also a GLContextStubWithExtensions, which overrides
GetExtensions again, providing a way to set the string returned from
GLContext, as well as a version string, but then these strings no
longer match what the calls to glGetString would return, so this isn't
something I want to use in my new test. Instead allow GLContextStub
to be used with an extensions string returned from glGetString
of my choosing.

R=kbr@chromium.org, piman, sievers
BUG=584497
==========

to

==========
Remove GLContextStub::GetExtensions.

This method overrides GLContext::GetExtensions. The GLContext method
will simply call glGetString(GL_EXTENSIONS), which is normally what
you want do to.

The GLContextStub overrides this method to return an empty string,
which means that you are unable to change what extensions will be
returned by glGetString.

There is also a GLContextStubWithExtensions, which overrides
GetExtensions again, providing a way to set the string returned from
GLContext, as well as a version string, but then these strings no
longer match what the calls to glGetString would return, so this isn't
something I want to use in my new test. Instead allow GLContextStub
to be used with an extensions string returned from glGetString
of my choosing.

R=kbr@chromium.org, piman, sievers
BUG=584497

Committed: https://crrev.com/06a9b07727f9548cc408ca9c12a59442d4096254
Cr-Commit-Position: refs/heads/master@{#387524}
==========

[commit-bot: I haz the power, 2016-04-15 02:30:29]

Patchset 1 (id:??) landed as
https://crrev.com/06a9b07727f9548cc408ca9c12a59442d4096254
Cr-Commit-Position: refs/heads/master@{#387524}