Add an Android sample app for Telemetry tests.

build/gn_migration.gypi

 # Copyright (c) 2015 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.
 
 # This file defines five targets that we are using to track the progress of the
 # GYP->GN migration:
 #
 # 'both_gn_and_gyp' lists what GN is currently capable of building and should
 # match the 'both_gn_and_gyp' target in //BUILD.gn.
 #
@@ skipping 215 matching lines @@
             '../sql/sql.gyp:sql_unittests_apk',
             '../sync/sync.gyp:sync_unit_tests_apk',
             '../testing/android/junit/junit_test.gyp:junit_unit_tests',
             '../third_party/smhasher/smhasher.gyp:murmurhash3',
             '../third_party/WebKit/Source/platform/blink_platform_tests.gyp:blink_heap_unittests_apk',
             '../third_party/WebKit/Source/platform/blink_platform_tests.gyp:blink_platform_unittests_apk',
             '../third_party/WebKit/Source/web/web_tests.gyp:webkit_unit_tests_apk',
             '../third_party/WebKit/Source/wtf/wtf_tests.gyp:wtf_unittests_apk',
             '../tools/android/heap_profiler/heap_profiler.gyp:heap_profiler_unittests_apk',
             '../tools/android/android_tools.gyp:memconsumer',
+            '../tools/android/android_tools.gyp:push_apps_to_background',
             '../tools/imagediff/image_diff.gyp:image_diff#host',
             '../third_party/catapult/telemetry/telemetry.gyp:bitmaptools#host',
             '../ui/android/ui_android.gyp:ui_android_unittests_apk',
             '../ui/android/ui_android.gyp:ui_junit_tests',
             '../ui/base/ui_base_tests.gyp:ui_base_unittests_apk',
             '../ui/events/events_unittests.gyp:events_unittests_apk',
             '../ui/gfx/gfx_tests.gyp:gfx_unittests_apk',
             '../ui/gl/gl_tests.gyp:gl_unittests_apk',
             '../ui/touch_selection/ui_touch_selection.gyp:ui_touch_selection_unittests_apk',
 
@@ skipping 535 matching lines @@
         }],
         ['OS=="android" and target_arch != "x64"', {
           'dependencies': [
             '../third_party/android_platform/relocation_packer.gyp:android_relocation_packer_unittests#host'
           ],
         }],
       ],
     },
   ]
 }