Insert logcat as part of test result for android instrumentation tests.

build/android/pylib/base/base_test_result.py

Index: build/android/pylib/base/base_test_result.py
diff --git a/build/android/pylib/base/base_test_result.py b/build/android/pylib/base/base_test_result.py
index 333211fa3219480837e4bbc38d5140e70ac57da7..8f537ab027d62df354c80a3358d205e8060a1500 100644
--- a/build/android/pylib/base/base_test_result.py
+++ b/build/android/pylib/base/base_test_result.py
@@ -42,6 +42,7 @@ class BaseTestResult(object):
     self._duration = duration
     self._log = log
     self._tombstones = None
+    self._logcat = None
 
   def __str__(self):
     return self._name
@@ -95,6 +96,12 @@ class BaseTestResult(object):
   def GetTombstones(self):
     return self._tombstones
 
+  def SetLogcat(self, logcat):
+    self._logcat = logcat
+
+  def GetLogcat(self):
+    return self._logcat
+
 class TestRunResults(object):
   """Set of results for a test run."""