cc: Avoid crash on Android in GLRenderer

cc: Avoid crash on Android in GLRenderer

We don't really handle GetVideoStreamTextureProgram() returning
null gracefully, so avoid the crash.
However, any broken implementation that was crashing here will
still not render embedded videos and cause GL errors
(since successfull shader compilation and use of GLenums
are also gated on the extension).

BUG=350443
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1515723002

Cr-Commit-Position: refs/heads/master@{#364263}
(cherry picked from commit 46c880331aaad20da0d966ca2240ff820bb41e28)

Committed: https://chromium.googlesource.com/chromium/src/+/ce67989b20608442e48144cd32e4a85d6e01e841

[no sievers, 2016-01-11 20:56:08]

Description was changed from

==========
cc: Avoid crash on Android in GLRenderer

We don't really handle GetVideoStreamTextureProgram() returning
null gracefully, so avoid the crash.
However, any broken implementation that was crashing here will
still not render embedded videos and cause GL errors
(since successfull shader compilation and use of GLenums
are also gated on the extension).

BUG=350443
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1515723002

Cr-Commit-Position: refs/heads/master@{#364263}
(cherry picked from commit 46c880331aaad20da0d966ca2240ff820bb41e28)
==========

to

==========
cc: Avoid crash on Android in GLRenderer

We don't really handle GetVideoStreamTextureProgram() returning
null gracefully, so avoid the crash.
However, any broken implementation that was crashing here will
still not render embedded videos and cause GL errors
(since successfull shader compilation and use of GLenums
are also gated on the extension).

BUG=350443
CQ_INCLUDE_TRYBOTS=tryserver.blink:linux_blink_rel

Review URL: https://codereview.chromium.org/1515723002

Cr-Commit-Position: refs/heads/master@{#364263}
(cherry picked from commit 46c880331aaad20da0d966ca2240ff820bb41e28)

Committed:
https://chromium.googlesource.com/chromium/src/+/ce67989b20608442e48144cd32e4...
==========

[no sievers, 2016-01-11 20:56:09]

Committed patchset #1 (id:1) manually as
ce67989b20608442e48144cd32e4a85d6e01e841.