Revert of [Android] Remove adb_commands from telemetry. (Reland)

Revert of [Android] Remove adb_commands from telemetry. (Reland) (patchset #2 id:20001 of https://codereview.chromium.org/1167173002/)

Reason for revert:
This patch broke the android perf bots.

http://build.chromium.org/p/chromium.perf/builders/Android%20Nexus4%20Perf/builds/3536/steps/memory.memory_health_plan/logs/stdio
http://build.chromium.org/p/chromium.perf/builders/Android%20Nexus6%20Perf/builds/1232/steps/memory.memory_health_plan/logs/stdio
http://build.chromium.org/p/chromium.perf/builders/Android%20Nexus7v2%20Perf/builds/4903/steps/memory.memory_health_plan/logs/stdio
http://build.chromium.org/p/chromium.perf/builders/Android%20Nexus9%20Perf/builds/467/steps/memory.memory_health_plan/logs/stdio
http://build.chromium.org/p/chromium.perf/builders/Android%20One%20Perf/builds/1204/steps/memory.memory_health_plan/logs/stdio

Original issue's description:
> [Android] Remove adb_commands from telemetry. (Reland)
> 
> This is a reland of https://codereview.chromium.org/1141833003, which
> was originally reverted for breaking telemetry on non-rooted devices.
> 
> BUG=476709
TBR=sullivan@chromium.org,nednguyen@google.com,dtu@chromium.org,jbudorick@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=476709

[alexclarke, 2015-07-13 10:33:44]

Created Revert of [Android] Remove adb_commands from telemetry. (Reland)

[commit-bot: I haz the power, 2015-07-13 10:33:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1233643004/1

[commit-bot: I haz the power, 2015-07-13 10:34:19]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-07-13 10:34:20]

Failed to apply patch for build/android/pylib/device/device_utils.py:
While running git apply --index -3 -p1;
  error: patch failed: build/android/pylib/device/device_utils.py:1382
  error: repository lacks the necessary blob to fall back on 3-way merge.
  error: build/android/pylib/device/device_utils.py: patch does not apply

Patch:       build/android/pylib/device/device_utils.py
Index: build/android/pylib/device/device_utils.py
diff --git a/build/android/pylib/device/device_utils.py
b/build/android/pylib/device/device_utils.py
index
299e4cc37f65b0aed8ec5742bc2a2668de632472..c8b471831e62aec343c705afb12bd3095bd8ea24
100644
--- a/build/android/pylib/device/device_utils.py
+++ b/build/android/pylib/device/device_utils.py
@@ -1382,6 +1382,22 @@
           % (property_name, value), str(self))
 
   @decorators.WithTimeoutAndRetriesFromInstance()
+  def GetABI(self, timeout=None, retries=None):
+    """Gets the device main ABI.
+
+    Args:
+      timeout: timeout in seconds
+      retries: number of retries
+
+    Returns:
+      The device's main ABI name.
+
+    Raises:
+      CommandTimeoutError on timeout.
+    """
+    return self.GetProp('ro.product.cpu.abi')
+
+  @decorators.WithTimeoutAndRetriesFromInstance()
   def GetPids(self, process_name, timeout=None, retries=None):
     """Returns the PIDs of processes with the given name.

[commit-bot: I haz the power, 2015-07-13 10:34:28]

The CQ bit was unchecked by commit-bot@chromium.org