Copy cdb.exe into telemetry_chrome_test's isolate.

tools/perf/core/stacktrace_unittest.py

Index: tools/perf/core/stacktrace_unittest.py
diff --git a/tools/perf/core/stacktrace_unittest.py b/tools/perf/core/stacktrace_unittest.py
index 7d63db1280e45deefe3507a9d8ffeb637bca2830..2e8805679586277bca0e6fbc606b01a7a0664692 100644
--- a/tools/perf/core/stacktrace_unittest.py
+++ b/tools/perf/core/stacktrace_unittest.py
@@ -11,8 +11,8 @@ class TabStackTraceTest(tab_test_case.TabTestCase):
 
   # TODO(dyen): For now this doesn't work on Android but continue to
   # expand this.
-  # TODO(kbr): this test doesn't work on the Windows Swarming bots
-  # yet. http://crbug.com/561763
+  # TODO(kbr): currently failing on Windows because the symbolized
+  # stack trace format is unexpected. http://crbug.com/561763
   @decorators.Enabled('mac', 'linux')
   # Stack traces do not currently work on 10.6, but they are also being
   # disabled shortly so just disable it for now.
@@ -24,9 +24,7 @@ class TabStackTraceTest(tab_test_case.TabTestCase):
       self.assertIn('Thread 0 (crashed)', '\n'.join(e.stack_trace))
 
   # Stack traces aren't working on Android yet.
-  # TODO(kbr): this test doesn't work on the Windows Swarming bots
-  # yet. http://crbug.com/561763
-  @decorators.Enabled('mac', 'linux')
+  @decorators.Enabled('mac', 'linux', 'win')
   @decorators.Disabled('snowleopard')
   def testCrashSymbols(self):
     try: