Copy adb_profile_chrome to catapult

systrace/profile_chrome/controllers.py

Index: systrace/profile_chrome/controllers.py
diff --git a/systrace/profile_chrome/controllers.py b/systrace/profile_chrome/controllers.py
new file mode 100644
index 0000000000000000000000000000000000000000..156818b2192ac9ea2e8bde9688e65438355c31f1
--- /dev/null
+++ b/systrace/profile_chrome/controllers.py
@@ -0,0 +1,17 @@
+# 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.
+
+import exceptions
+
+
+# pylint: disable=R0201
+class BaseController(object):
+  def StartTracing(self, _):
+    raise exceptions.NotImplementedError
+
+  def StopTracing(self):
+    raise exceptions.NotImplementedError
+
+  def PullTrace(self):
+    raise exceptions.NotImplementedError