Android: Enable content_browsertests by default.

build/android/buildbot/bb_device_steps.py

Index: build/android/buildbot/bb_device_steps.py
diff --git a/build/android/buildbot/bb_device_steps.py b/build/android/buildbot/bb_device_steps.py
index c77782ceab5e65b625e868531d969e5a2b99727a..d87e75e282f6dcd97075a2371727fa72d2de0bb4 100755
--- a/build/android/buildbot/bb_device_steps.py
+++ b/build/android/buildbot/bb_device_steps.py
@@ -146,7 +146,7 @@ def RunBrowserTestSuite(options):
   Args:
     options: options object.
   """
-  args = ['--verbose']
+  args = ['--verbose', '--num_retries=1']
   if options.target == 'Release':
     args.append('--release')
   if options.asan:
@@ -284,6 +284,7 @@ def MainTestWrapper(options):
     RunChromeDriverTests()
   if 'unit' in options.test_filter:
     RunTestSuites(options, gtest_config.STABLE_TEST_SUITES)
+    RunBrowserTestSuite(options)
   if 'ui' in options.test_filter:
     for test in INSTRUMENTATION_TESTS.itervalues():
       RunInstrumentationSuite(options, test)
@@ -298,7 +299,6 @@ def MainTestWrapper(options):
 
   if options.experimental:
     RunTestSuites(options, gtest_config.EXPERIMENTAL_TEST_SUITES)
-    RunBrowserTestSuite(options)
 
   # Print logcat, kill logcat monitor
   buildbot_report.PrintNamedStep('logcat_dump')