adb_profile_chrome: Refactor into multiple modules and add tests

build/android/chrome_profiler/controllers_unittest.py

+# 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 unittest
+
+from chrome_profiler import profiler
+
+from pylib import android_commands
+from pylib.device import device_utils
+
+
+class BaseControllerTest(unittest.TestCase):
+  def setUp(self):
+    devices = android_commands.GetAttachedDevices()
+    self.browser = 'stable'
+    self.package_info = profiler.GetSupportedBrowsers()[self.browser]
+    self.device = device_utils.DeviceUtils(devices[0])
+
+    adb = android_commands.AndroidCommands(devices[0])
+    adb.StartActivity(self.package_info.package,
+                      self.package_info.activity,
+                      wait_for_completion=True)