[phone screen] Turn phone screen on for instrumentation tests

build/android/pylib/local/device/local_device_instrumentation_test_run.py

Index: build/android/pylib/local/device/local_device_instrumentation_test_run.py
diff --git a/build/android/pylib/local/device/local_device_instrumentation_test_run.py b/build/android/pylib/local/device/local_device_instrumentation_test_run.py
index 4b762c9889a531fdc641e96daa15c098bfd6ab9b..83f96d72ac7763c22ad91bf147200934219be6b3 100644
--- a/build/android/pylib/local/device/local_device_instrumentation_test_run.py
+++ b/build/android/pylib/local/device/local_device_instrumentation_test_run.py
@@ -354,6 +354,9 @@ class LocalDeviceInstrumentationTestRun(
       self._flag_changers[str(device)].PushFlags(
         add=flags_to_add, remove=flags_to_remove)
 
+    if not device.IsScreenOn():
+      device.SetScreen(True)
+
     try:
       device.RunShellCommand(
           ['log', '-p', 'i', '-t', _TAG, 'START %s' % test_name],