Perf Tests: fail test on GL_CONTEXT_LOST after glFinish(). Interrupts the test in the case I ran into: ../../src/tests/perf_tests/ANGLEPerfTest.cpp:383: Failure Failed Context lost Warm-up trial took 1.11 seconds. [ FAILED ] TracePerfTest.Run/vulkan_dr_driving, where GetParam() = vulkan_dr_driving (1476 ms) [----------] 1 test from TracePerfTest (1476 ms total) Bug: angleproject:7762 Change-Id: Iaf416dbdaa0eb846b744bdb4d1eb596f0c2bb1a6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3963360 Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Roman Lavrov <romanl@google.com>