Revert of [Android] Remove adb_commands from telemetry.

tools/telemetry/telemetry/unittest_util/system_stub.py

Index: tools/telemetry/telemetry/unittest_util/system_stub.py
diff --git a/tools/telemetry/telemetry/unittest_util/system_stub.py b/tools/telemetry/telemetry/unittest_util/system_stub.py
index 27f3956dc22ad9cf3b094f4a00405fde16217eb7..cb7c20dd795d96b5692516f52a01876c89252a7f 100644
--- a/tools/telemetry/telemetry/unittest_util/system_stub.py
+++ b/tools/telemetry/telemetry/unittest_util/system_stub.py
@@ -9,12 +9,14 @@
 
 import os
 import re
+import shlex
 import sys
 
 
 class Override(object):
   def __init__(self, base_module, module_list):
-    stubs = {'cloud_storage': CloudStorageModuleStub,
+    stubs = {'adb_commands': AdbCommandsModuleStub,
+             'cloud_storage': CloudStorageModuleStub,
              'open': OpenFunctionStub,
              'os': OsModuleStub,
              'perf_control': PerfControlModuleStub,
@@ -58,6 +60,96 @@
     self._overrides = {}
 
 
+class AdbDevice(object):
+
+  def __init__(self):
+    self.has_root = False
+    self.needs_su = False
+    self.shell_command_handlers = {}
+    self.mock_content = []
+    self.system_properties = {}
+    if self.system_properties.get('ro.product.cpu.abi') == None:
+      self.system_properties['ro.product.cpu.abi'] = 'armeabi-v7a'
+
+  def HasRoot(self):
+    return self.has_root
+
+  def NeedsSU(self):
+    return self.needs_su
+
+  def RunShellCommand(self, args, **_kwargs):
+    if isinstance(args, basestring):
+      args = shlex.split(args)
+    handler = self.shell_command_handlers[args[0]]
+    return handler(args)
+
+  def FileExists(self, _):
+    return False
+
+  def ReadFile(self, device_path, as_root=False):  # pylint: disable=W0613
+    return self.mock_content
+
+  def GetProp(self, property_name):
+    return self.system_properties[property_name]
+
+  def SetProp(self, property_name, property_value):
+    self.system_properties[property_name] = property_value
+
+
+class AdbCommandsModuleStub(object):
+
+  class AdbCommandsStub(object):
+
+    def __init__(self, module, device):
+      self._module = module
+      self._device = device
+      self.is_root_enabled = True
+      self._adb_device = module.adb_device
+
+    def IsRootEnabled(self):
+      return self.is_root_enabled
+
+    def RestartAdbdOnDevice(self):
+      pass
+
+    def IsUserBuild(self):
+      return False
+
+    def WaitForDevicePm(self):
+      pass
+
+    def device(self):
+      return self._adb_device
+
+    def device_serial(self):
+      return self._device
+
+  def __init__(self):
+    self.attached_devices = []
+    self.apk_package_name = None
+    self.adb_device = AdbDevice()
+
+    def AdbCommandsStubConstructor(device=None):
+      return AdbCommandsModuleStub.AdbCommandsStub(self, device)
+    self.AdbCommands = AdbCommandsStubConstructor
+
+  @staticmethod
+  def IsAndroidSupported():
+    return True
+
+  def GetPackageName(self, _):
+    return self.apk_package_name
+
+  def GetAttachedDevices(self):
+    return self.attached_devices
+
+  def SetupPrebuiltTools(self, _):
+    return True
+
+  def CleanupLeftoverProcesses(self):
+    pass
+
+
 class CloudStorageModuleStub(object):
   PUBLIC_BUCKET = 'chromium-telemetry'
   PARTNER_BUCKET = 'chrome-partner-telemetry'