Run telemetry_gpu_unittests via isolate on "Window Tests" & "Mac tests" and trybot.

chrome/telemetry_gpu_unittests.isolate

Index: chrome/telemetry_gpu_unittests.isolate
diff --git a/chrome/telemetry_gpu_unittests.isolate b/chrome/telemetry_gpu_unittests.isolate
index 4b5d5b668ca7a84564472fcf4f8f633a674a5fd7..4d5c1aea2f484ce718138bfc1fd1dd2ba70bba94 100644
--- a/chrome/telemetry_gpu_unittests.isolate
+++ b/chrome/telemetry_gpu_unittests.isolate
@@ -12,6 +12,8 @@
           # Other dependencies of the tests and their harness.
           '../third_party/typ/',
           '../third_party/catapult/',
+          '../testing/test_env.py',
+          '../testing/xvfb.py',

[M-A Ruel, 2015/10/13 21:27:25]

This must only be mapped when use_x11==1

[Ken Russell (switch to Gerrit), 2015/10/13 23:09:36]

Earlier try jobs which did this failed a module import. Either the Python file
always needs to be present (though it won't be invoked except on Linux) or
run_telemetry_as_googletest.py needs to be made more robust to avoid the xvfb
import on non-Linux platforms.

[M-A Ruel, 2015/10/14 00:25:50]

ok

           '../testing/scripts/common.py',
           '../testing/scripts/run_telemetry_as_googletest.py',
           # The following represent the actual tests.