Add an activity monitor which profiles IO and CPU utilization.

tools/android/device_stats_monitor/device_stats_monitor.gyp

+# Copyright (c) 2012 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.
+
+{
+  'targets': [
+    {
+      'target_name': 'device_stats_monitor',
+      'type': 'none',
+      'dependencies': [
+        'device_stats_monitor_symbols',
+      ],
+      'actions': [
+        {
+          'action_name': 'strip_device_stats_monitor',
+          'inputs': ['<(PRODUCT_DIR)/device_stats_monitor_symbols'],
+          'outputs': ['<(PRODUCT_DIR)/device_stats_monitor'],
+          'action': [
+            '<!(/bin/echo -n $STRIP)',
+            '--strip-unneeded',
+            '<@(_inputs)',
+            '-o',
+            '<@(_outputs)',
+          ],
+        },
+      ],
+    }, {
+      'target_name': 'device_stats_monitor_symbols',
+      'type': 'executable',
+      'dependencies': [
+        '../../../base/base.gyp:base',
+      ],
+      'include_dirs': [
+        '../../..',
+      ],
+      'sources': [
+        'device_stats_monitor.cc',
+      ],
+    },
+  ],
+}