Enable new device monitor everywhere and launch it earlier in the build.

scripts/slave/recipes/cronet.expected/android_cronet_builder_asan.json

 [
   {
     "cmd": [
       "python",
       "-u",
       "\nimport os, sys\n\nbuild_path = sys.argv[1]\nif os.path.exists(build_path):\n  for (path, dir, files) in os.walk(build_path):\n    for cur_file in files:\n      if cur_file.endswith('index.lock'):\n        path_to_file = os.path.join(path, cur_file)\n        print 'deleting %s' % path_to_file\n        os.remove(path_to_file)\n",
       "[SLAVE_BUILD]"
     ],
     "name": "cleanup index.lock",
     "~followup_annotations": [
@@ skipping 351 matching lines @@
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
     "name": "spawn_logcat_monitor"
   },
   {
     "cmd": [
       "python",
       "-u",
+      "RECIPE_PACKAGE_REPO[build]/scripts/slave/daemonizer.py",
+      "--action",
+      "restart",
+      "--pid-file-path",
+      "/tmp/device_monitor.pid",
+      "--",
+      "[SLAVE_BUILD]/src/third_party/catapult/devil/devil/android/tools/device_monitor.py",
+      "--adb-path",
+      "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb",
+      "--blacklist-file",
+      "[SLAVE_BUILD]/src/out/bad_devices.json"
+    ],
+    "name": "spawn_device_monitor"
+  },
+  {
+    "cmd": [
+      "python",
+      "-u",
       "RECIPE_PACKAGE_REPO[build]/scripts/slave/android/authorize_adb_devices.py",
       "--verbose",
       "--adb-path",
       "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb"
     ],
     "env": {
       "GOMA_SERVICE_ACCOUNT_JSON_FILE": "/creds/service_accounts/service-account-goma-client.json",
       "PATH": "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools:[SLAVE_BUILD]/src/build/android:%(PATH)s"
     },
     "name": "authorize_adb_devices"
@@ skipping 218 matching lines @@
     },
     "name": "Set up ASAN on devices.07a00ca4",
     "~followup_annotations": [
       "@@@STEP_NEST_LEVEL@1@@@"
     ]
   },
   {
     "cmd": [
       "python",
       "-u",
-      "RECIPE_PACKAGE_REPO[build]/scripts/slave/daemonizer.py",
-      "--action",
-      "restart",
-      "--pid-file-path",
-      "/tmp/device_monitor.pid",
-      "--",
-      "RECIPE_MODULE[build::chromium_android]/resources/spawn_device_monitor.py",
-      "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb",
-      "[\"07a00ca4\"]",
-      "--blacklist-file",
-      "[SLAVE_BUILD]/src/out/bad_devices.json"
-    ],
-    "name": "spawn_device_monitor"
-  },
-  {
-    "cmd": [
-      "python",
-      "-u",
       "[SLAVE_BUILD]/src/out/Release/bin/run_cronet_unittests",
       "--blacklist-file",
       "[SLAVE_BUILD]/src/out/bad_devices.json",
       "--verbose",
       "-t",
       "180",
       "--adb-path",
       "[SLAVE_BUILD]/src/third_party/android_tools/sdk/platform-tools/adb"
     ],
     "env": {
@@ skipping 186 matching lines @@
       "@@@STEP_LOG_LINE@python.inline@  os.remove(report)@@@",
       "@@@STEP_LOG_END@python.inline@@@"
     ]
   },
   {
     "name": "$result",
     "recipe_result": null,
     "status_code": 0
   }
 ]