device: Restructure the layout of gyp files.

chrome/chrome_tests.gypi

 # Copyright 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.
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
       'common/pref_names.cc',
@@ skipping 1140 matching lines @@
         'chrome_resources.gyp:packed_extra_resources',
         'chrome_resources.gyp:packed_resources',
         'common/extensions/api/api.gyp:api',
         'renderer',
         'test_support_common',
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
         '../base/base.gyp:test_support_base',
         '../components/components.gyp:autofill_risk_proto',
         '../components/components.gyp:autofill_test_util',
-        '../device/device.gyp:device_bluetooth_mocks',
+        '../device/bluetooth/bluetooth.gyp:bluetooth_mocks',
         '../net/net.gyp:net',
         '../net/net.gyp:net_test_support',
         '../skia/skia.gyp:skia',
         '../sync/sync.gyp:sync',
         '../sync/sync.gyp:test_support_sync_api',
         '../testing/gmock.gyp:gmock',
         '../testing/gtest.gyp:gtest',
         '../third_party/cacheinvalidation/cacheinvalidation.gyp:cacheinvalidation',
         '../third_party/cld/cld.gyp:cld',
         '../third_party/icu/icu.gyp:icui18n',
@@ skipping 2221 matching lines @@
               # more details.
               'DebugInformationFormat': '3',
               'ProgramDataBaseFileName': '<(PRODUCT_DIR)/browser_tests.exe.pdb',
             },
           },
         },
       ],
     }],
   ],  # 'conditions'
 }