Created separate shards for suspicious testcases.

build/android/pylib/gtest/gtest_test_instance.py

Index: build/android/pylib/gtest/gtest_test_instance.py
diff --git a/build/android/pylib/gtest/gtest_test_instance.py b/build/android/pylib/gtest/gtest_test_instance.py
index 173628b46134d6c7fe4b5eab246fea610c8836a6..e4649e63c3b860ff635cd630b8c9babff7ba4350 100644
--- a/build/android/pylib/gtest/gtest_test_instance.py
+++ b/build/android/pylib/gtest/gtest_test_instance.py
@@ -343,6 +343,24 @@ class GtestTestInstance(test_instance.TestInstance):
 
     return '*-%s' % ':'.join(disabled_filter_items)
 
+  def GetCrashedTestCase(self, output):
+    crash_happened = re.search(r'FAILURES!!! Tests run: \d+, Failures: \d+,' \

[jbudorick, 2016/02/27 00:31:37]

all of the regexes in here should compiled into module-private constants, e.g.
this should be

_TEST_ERROR_RE = re.compile(r'FAILURES!!! ...')

  ...

  def GetCrashedTestCase(self, output):
    crash_happened = _TEST_ERROR_RE.search(output[-1])

+                               ' Errors: 1', output[-1])
+    if not crash_happened:
+      return
+
+    #Crashes that will cause output like DCHECK(false).

[jbudorick, 2016/02/27 00:31:37]

nit: # Crashes ...

+    has_crash = re.search(r'\[ERROR:.*?\] Currently running: ', output[-3])

[jbudorick, 2016/02/27 00:31:37]

magical -3

+    if has_crash:
+      return output[-3][len(has_crash.group(0)):]
+
+    # Crashes that will cause output like null pointer dereference.
+    index = output.index('[ CRASHED      ]')
+    if not index == -1:
+      run_info = re.search(r'(?<=\[ RUN      \] ).*', output[index-1])

[jbudorick, 2016/02/27 00:31:37]

Why is this doing a lookbehind if you're matching on .*? (I had to look up the
regex syntax here.) What exactly do you intend to match?

+      if run_info:
+        return run_info.group(0)
+
   # pylint: disable=no-self-use
   def ParseGTestOutput(self, output):
     """Parses raw gtest output and returns a list of results.