[Android] Add a configurable environment for devil/. (RELAND 2)

tools/telemetry/telemetry/internal/platform/android_device.py

Index: tools/telemetry/telemetry/internal/platform/android_device.py
diff --git a/tools/telemetry/telemetry/internal/platform/android_device.py b/tools/telemetry/telemetry/internal/platform/android_device.py
index 20608639dfd83ec20e332e2c7125e701b2a40a87..92a276fb83218b3fc9d1d3820e8d23808a3cf223 100644
--- a/tools/telemetry/telemetry/internal/platform/android_device.py
+++ b/tools/telemetry/telemetry/internal/platform/android_device.py
@@ -129,6 +129,9 @@ def GetDevice(finder_options):
 
 def CanDiscoverDevices():
   """Returns true if devices are discoverable via adb."""
+  if os.name != 'posix':
+    return False
+
   adb_path = constants.GetAdbPath()
   if os.path.isabs(adb_path) and not os.path.exists(adb_path):
     return False