Adds filter exclusions for arm and win8 bots

testing/buildbot/chromium_win8_trybot.json

Index: testing/buildbot/chromium_win8_trybot.json
diff --git a/testing/buildbot/chromium_win8_trybot.json b/testing/buildbot/chromium_win8_trybot.json
index 7d9801b50a0b1ed63088b7d9cd4287bb386d544f..b50c86458c38c0d5bf5a3591c1067f49998fbd5e 100644
--- a/testing/buildbot/chromium_win8_trybot.json
+++ b/testing/buildbot/chromium_win8_trybot.json
@@ -9,5 +9,23 @@
     "ash_unittests",
     "compositor_unittests",
     "events_unittests"
+  ],
+  "gtest_tests_filter_exclusions": [
+    ".*gyp[i]?",
+    "build/android/pylib",
+    "build/compiler_version.py",
+    "build/get_landmines.py",
+    "build/gyp_chromium",
+    "build/linux/sysroot_ld_path.sh",
+    "chrome/test/data/.*",
+    "content/test/data/.*",
+    "DEPS",
+    "testing/buildbot/.*",
+    "tools/clang/scripts/plugin_flags.sh",
+    "tools/clang/scripts/update.py",
+    "tools/clang/scripts/update.sh",
+    "tools/perf/.*",
+    "tools/telemetry/.*",
+    "tools/whitespace.txt"
   ]
 }