Turn Chrome Crash collection back on.

Revert "Revert "Turn on collection of Chrome crashes again.""

This reverts commit 2165ae169273ec1742d270cfdc8be33922372907.

BUG=chromium:527144
TEST=None

Change-Id: I947b2db642013bef148540f5634e079e1113bbe6
Reviewed-on: https://chromium-review.googlesource.com/299330
Commit-Ready: Don Garrett <dgarrett@chromium.org>
Tested-by: Don Garrett <dgarrett@chromium.org>
Reviewed-by: Shuqian Zhao <shuqianz@chromium.org>
diff --git a/client/common_lib/cros/chrome.py b/client/common_lib/cros/chrome.py
index 66213f1..e6315c6 100644
--- a/client/common_lib/cros/chrome.py
+++ b/client/common_lib/cros/chrome.py
@@ -4,6 +4,7 @@
 
 import logging, os
 
+from autotest_lib.client.cros import constants
 from autotest_lib.client.bin import utils
 from telemetry.core import cros_interface, exceptions, util
 from telemetry.internal.browser import browser_finder, browser_options
@@ -96,10 +97,9 @@
         b_options.username = self.username
         b_options.password = self.password
 
-        # TODO(dgarrett): Reenable, crbug.com/527144
         # Turn on collection of Chrome coredumps via creation of a magic file.
         # (Without this, Chrome coredumps are trashed.)
-        # open(constants.CHROME_CORE_MAGIC_FILE, 'w').close()
+        open(constants.CHROME_CORE_MAGIC_FILE, 'w').close()
 
         for i in range(num_tries):
             try: