Android test_runner.py: Eliminate unused "adb devices" call for gtests

build/android/test_runner.py

Index: build/android/test_runner.py
diff --git a/build/android/test_runner.py b/build/android/test_runner.py
index 404a06a8bf4430ad61ab5d0a6798711a6f634da2..5c333a740ffd63a0ac384903699e4e72a480da56 100755
--- a/build/android/test_runner.py
+++ b/build/android/test_runner.py
@@ -921,30 +921,30 @@ def RunTestsCommand(args, parser): # pylint: disable=too-many-return-statements
   if args.enable_platform_mode:
     return RunTestsInPlatformMode(args, parser)
 
-  if command in constants.LOCAL_MACHINE_TESTS:

[jbudorick, 2015/10/09 01:00:20]

This was already skipping the device check for python & junit.

[agrieve, 2015/10/09 01:04:39]

oooooooh. I got it.
Removed the LOCAL_MACHINE_TESTS check in get_devices() since it's not necessary.

-    devices = []
-  else:
-    devices = _GetAttachedDevices(args.blacklist_file, args.test_device,
-                                  args.enable_device_cache)
-
   forwarder.Forwarder.RemoveHostLog()
   if not ports.ResetTestServerPortAllocation():
     raise Exception('Failed to reset test server port.')
 
+  def get_devices():
+    if command in constants.LOCAL_MACHINE_TESTS:
+      return []
+    return _GetAttachedDevices(args.blacklist_file, args.test_device,
+                               args.enable_device_cache)
+
   if command == 'gtest':
     return RunTestsInPlatformMode(args, parser)
   elif command == 'linker':
-    return _RunLinkerTests(args, devices)
+    return _RunLinkerTests(args, get_devices())
   elif command == 'instrumentation':
-    return _RunInstrumentationTests(args, devices)
+    return _RunInstrumentationTests(args, get_devices())
   elif command == 'uiautomator':
-    return _RunUIAutomatorTests(args, devices)
+    return _RunUIAutomatorTests(args, get_devices())
   elif command == 'junit':
     return _RunJUnitTests(args)
   elif command == 'monkey':
-    return _RunMonkeyTests(args, devices)
+    return _RunMonkeyTests(args, get_devices())
   elif command == 'perf':
-    return _RunPerfTests(args, devices)
+    return _RunPerfTests(args, get_devices())
   elif command == 'python':
     return _RunPythonTests(args)
   else: