[Android] Switch to new interfaces of GetAVDs and RestartAdbServer.

build/android/pylib/device/device_errors.py

Index: build/android/pylib/device/device_errors.py
diff --git a/build/android/pylib/device/device_errors.py b/build/android/pylib/device/device_errors.py
new file mode 100644
index 0000000000000000000000000000000000000000..1db7c1b1499b56f936c2f012de339a096429b0b0
--- /dev/null
+++ b/build/android/pylib/device/device_errors.py
@@ -0,0 +1,31 @@
+# Copyright 2014 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+"""
+Exception classes raised by AdbWrapper and DeviceUtils.
+"""
+
+class BaseError(Exception):
+  """Base exception for all device and command errors."""
+  pass
+
+
+class CommandFailedError(BaseError):
+  """Exception for command failures."""
+
+  def __init__(self, cmd, msg, device=None):
+    super(CommandFailedError, self).__init__(
+        (('device %s: ' % device) if device else '') +
+        'adb command \'%s\' failed with message: \'%s\'' % (' '.join(cmd), msg))
+
+
+class CommandTimeoutError(BaseError):
+  """Exception for command timeouts."""
+  pass
+
+
+class DeviceUnreachableError(BaseError):
+  """Exception for device unreachable failures."""
+  pass
+