This patch makes it possible to use glob-style gtest filters with
the content browser tests. An example of such a filter is
WebGLConformanceTest.*, which should cause all the WebGL conformance
tests to be run.
Previously the gtest filter was passed directly to the test executable,
causing it to run all matching tests successively in the same process.
Normally this would be fine, but with content browsertests we must run
each test in a fresh process to avoid issues with double initialization.
The fix is to expand the filter to a flat list of tests in the test
dispatcher. After this, the tests are sharded and run in exactly the
same way as when no gtest filter is provided.
BUG=138226
Review URL: https://chromiumcodereview.appspot.com/14882007
git-svn-id: http://src.chromium.org/svn/trunk/src/build@204680 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
skyostil@chromium.org