Revert 227045 "Ignore the --gtest_output command line argument."

This change was incorrect.

> Ignore the --gtest_output command line argument.
> 
> This is required in order to run the Telemetry based WebGL conformance
> tests under runtest.py, which is in turn needed in order to properly
> parse the test results and upload them to the flakiness dashboard.
> 
> Eventually Telemetry should ignore this argument rather than each
> individual test, so that all Telemetry based tests can easily be run
> on the bots, but that will require a full review, so doing this
> workaround for now.
> 
> BUG=225939
> TBR=bajones@chromium.org
> 
> Review URL: https://codereview.chromium.org/25399005

TBR=kbr@chromium.org

Review URL: https://codereview.chromium.org/26078003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227162 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227162
Made it possible to override the name of tests in Telemetry test results.

This is needed in order to produce properly formatted gtest output.
However, runtest.py isn't yet properly picking up the output from the
WebGL conformance tests. Still investigating.

BUG=225939
R=bajones@chromium.org, dtu@chromium.org

Review URL: https://codereview.chromium.org/26070002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@227163 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 227163