[Android] Change object types from AndroidCommands to DeviceUtils in build/android/.

build/android/pylib/perf/cache_control.py

Index: build/android/pylib/perf/cache_control.py
diff --git a/build/android/pylib/perf/cache_control.py b/build/android/pylib/perf/cache_control.py
index 1b0a4c2b95529fa549b2db7b9ac997861b4c5f05..adc3219609a753f63660375649ef64d4332654fe 100644
--- a/build/android/pylib/perf/cache_control.py
+++ b/build/android/pylib/perf/cache_control.py
@@ -2,15 +2,21 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
+from pylib import android_commands
+from pylib.device import device_utils
 
 class CacheControl(object):
   _DROP_CACHES = '/proc/sys/vm/drop_caches'
 
-  def __init__(self, adb):
-    self._adb = adb
+  def __init__(self, device):
+    # TODO(jbudorick) Remove once telemetry gets switched over.
+    if isinstance(device, android_commands.AndroidCommands):
+      device = device_utils.DeviceUtils(device)
+    self._device = device
 
   def DropRamCaches(self):
     """Drops the filesystem ram caches for performance testing."""
-    self._adb.RunShellCommandWithSU('sync')
-    self._adb.SetProtectedFileContents(CacheControl._DROP_CACHES, '3')
+    self._device.old_interface.RunShellCommandWithSU('sync')
+    self._device.old_interface.SetProtectedFileContents(
+        CacheControl._DROP_CACHES, '3')