Add device_unittests target to linux_default_tests list.

BUILD.gn

 # Copyright (c) 2013 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 is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 261 matching lines @@
 }
 
 if (is_linux) {
   # This group corresponds to the list of tests run on the waterfall for
   # desktop Linux GYP builds from testing/buildbot/chromium.linux.json. It's
   # here to help track GYP -> GN conversion progress.
   group("linux_default_tests") {
     testonly = true
     deps = [
       # components_browsertests  TODO(GYP)
-      # device_unittests  TODO(GYP)
       # nacl_loader_unittests  TODO(GYP)
 
       "//base:base_unittests",  # PASSES (*) 2/25/2015
       "//cc:cc_unittests",  # PASSES 2/25/2015
       "//chrome/test:browser_tests",
       "//chrome/test:interactive_ui_tests",
       "//chrome/test:sync_integration_tests",  # Crashes for brettw in GN and GYP.
       "//chrome/test:unit_tests",  # PASSES 2/25/2015
       "//chrome/test/chromedriver:chromedriver_unittests",  # PASSES 2/25/2015
       "//components:components_unittests",  # PASSES 2/27/2015
       "//content/test:content_browsertests",
       "//content/test:content_unittests",  # PASSES 2/25/2015
       "//crypto:crypto_unittests",  # PASSES 2/25/2015
       "//dbus:dbus_unittests",  # PASSES 2/25/2015
+      "//device:device_unittests",  # PASSES 3/07/2015
       "//extensions:extensions_browsertests",  # PASSES 2/25/2015
       "//extensions:extensions_unittests",  # PASSES 2/25/2015
       "//extensions/shell:app_shell_unittests",  # PASSES 2/25/2015
       "//google_apis/gcm:gcm_unit_tests",  # PASSES 2/25/2015
       "//google_apis:google_apis_unittests",  # PASSES 2/25/2015
       "//gpu:gpu_unittests",  # PASSES 2/25/2015
       "//ipc:ipc_tests",  # PASSES 2/25/2015
       "//ipc/mojo:ipc_mojo_unittests",  # PASSES 2/25/2015
       "//jingle:jingle_unittests",  # PASSES 2/25/2015
       "//media/cast:cast_unittests",  # PASSES 2/25/2015
@@ skipping 23 matching lines @@
       "//ui/touch_selection:ui_touch_selection_unittests",  # PASSES 2/25/2015
       "//ui/views:views_unittests",  # PASSES (*) 2/25/2015
       "//ui/wm:wm_unittests",  # PASSES 2/25/2015
       "//url:url_unittests",  # PASSES 2/25/2015
 
       # Note:
       # (*) Fails but failures match GYP build at time of testing.
     ]
   }
 }