Turn on subannotations when runtests has annotate parameter.

scripts/slave/recipes/gpu.expected/win_release_tryserver.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "[DEPOT_TOOLS_ROOT]\\gclient.py",
       "config",
       "--spec",
       "cache_dir = None\nsolutions = [{'custom_deps': {'src/third_party/WebKit/LayoutTests': None, 'src/webkit/data/layout_tests/LayoutTests': None}, 'custom_vars': {'googlecode_url': 'svn://svn-mirror.golo.chromium.org/%s', 'nacl_trunk': 'svn://svn-mirror.golo.chromium.org/native_client/trunk', 'sourceforge_url': 'svn://svn-mirror.golo.chromium.org/%(repo)s', 'webkit_trunk': 'svn://svn-mirror.golo.chromium.org/blink/trunk'}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src', 'url': 'svn://svn-mirror.golo.chromium.org/chrome/trunk/src'}, {'custom_deps': {'src/chrome/test/data/firefox2_profile/searchplugins': None, 'src/chrome/test/data/firefox2_searchplugins': None, 'src/chrome/test/data/firefox3_profile/searchplugins': None, 'src/chrome/test/data/firefox3_searchplugins': None, 'src/chrome/test/data/osdd': None, 'src/chrome/test/data/plugin': None, 'src/chrome/test/data/ssl/certs': None, 'src/data/autodiscovery': None, 'src/data/esctf': None, 'src/data/mach_ports': None, 'src/data/memory_test': None, 'src/data/mozilla_js_tests': None, 'src/data/page_cycler': None, 'src/data/selenium_core': None, 'src/data/tab_switching': None, 'src/tools/grit/grit/test/data': None, 'src/webkit/data/bmp_decoder': None, 'src/webkit/data/ico_decoder': None, 'src/webkit/data/test_shell/plugins': None, 'src/webkit/data/xbm_decoder': None}, 'deps_file': 'DEPS', 'managed': True, 'name': 'src-internal', 'url': 'svn://svn-mirror.golo.chromium.org/chrome-internal/trunk/src-internal'}]"
     ],
@@ skipping 152 matching lines @@
       "--generated-dir=[SLAVE_BUILD_ROOT]\\content_gpu_data\\generated",
       "--reference-dir=[SLAVE_BUILD_ROOT]\\content_gpu_data\\reference",
       "--build-revision=HEAD",
       "--gtest_filter=WebGLConformanceTest.*:Gpu*.*",
       "--ui-test-action-max-timeout=45000",
       "--run-manual"
     ],
     "name": "content_browsertests"
   },
   {
+    "allow_subannotations": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[BUILD_ROOT]\\scripts\\slave\\runtest.py",
       "--target",
       "Release",
       "--build-dir",
       "[SLAVE_BUILD_ROOT]\\src\\out",
       "--no-xvfb",
       "--factory-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--annotate=framerate",
       "--results-url=https://chromeperf.appspot.com",
       "performance_ui_tests.exe",
       "--enable-gpu",
       "--gtest_filter=FrameRate*Test*"
     ],
     "name": "gpu_frame_rate_test"
   },
   {
+    "allow_subannotations": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[BUILD_ROOT]\\scripts\\slave\\runtest.py",
       "--target",
       "Release",
       "--build-dir",
       "[SLAVE_BUILD_ROOT]\\src\\out",
       "--no-xvfb",
       "--factory-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--annotate=graphing",
       "--results-url=https://chromeperf.appspot.com",
       "performance_browser_tests.exe",
       "--enable-gpu",
       "--gtest_filter=ThroughputTest*"
     ],
     "name": "gpu_throughput_tests"
   },
   {
+    "allow_subannotations": true,
     "can_fail_build": false,
     "cmd": [
       "python",
       "-u",
       "[BUILD_ROOT]\\scripts\\slave\\runtest.py",
       "--target",
       "Release",
       "--build-dir",
       "[SLAVE_BUILD_ROOT]\\src\\out",
       "--no-xvfb",
       "--factory-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--build-properties",
       "{\"blamelist\": [\"cool_dev1337@chromium.org\", \"hax@chromium.org\"], \"branch\": \"\", \"build_config\": \"Release\", \"buildername\": \"TestBuilder\", \"buildnumber\": 571, \"issue\": 12853011, \"mastername\": \"chromium.testing.master\", \"patchset\": 1, \"project\": \"chrome\", \"recipe\": \"gpu\", \"repository\": \"\", \"requester\": \"commit-bot@chromium.org\", \"revision\": \"HEAD\", \"rietveld\": \"https://chromiumcodereview.appspot.com\", \"root\": \"src\", \"slavename\": \"TestSlavename\", \"workdir\": \"/path/to/workdir/TestSlavename\"}",
       "--annotate=graphing",
       "--results-url=https://chromeperf.appspot.com",
       "performance_browser_tests.exe",
       "--enable-gpu",
       "--gtest_filter=TabCapturePerformanceTest*"
     ],
     "name": "tab_capture_performance_tests"
   }
 ]