device: Restructure the layout of gyp files.

build/all.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': 'All',
       'type': 'none',
       'xcode_create_dependents_test_runner': 1,
@@ skipping 17 matching lines @@
         '../ui/snapshot/snapshot.gyp:*',
         '../ui/ui.gyp:*',
         '../url/url.gyp:*',
         'temp_gyp/googleurl.gyp:*',
       ],
       'conditions': [
         ['OS!="ios"', {
           'dependencies': [
             '../cc/cc_tests.gyp:*',
             '../components/components.gyp:*',
+            '../device/bluetooth/bluetooth.gyp:*',
             '../device/device.gyp:*',
+            '../device/usb/usb.gyp:*',
             '../gpu/gpu.gyp:*',
             '../gpu/tools/tools.gyp:*',
             '../ipc/ipc.gyp:*',
             '../jingle/jingle.gyp:*',
             '../ppapi/ppapi.gyp:*',
             '../ppapi/ppapi_internal.gyp:*',
             '../printing/printing.gyp:*',
             '../skia/skia.gyp:*',
             '../third_party/cacheinvalidation/cacheinvalidation.gyp:*',
             '../third_party/cld/cld.gyp:*',
@@ skipping 832 matching lines @@
             '../chrome/chrome.gyp:interactive_ui_tests_run',
             '../chrome/chrome.gyp:sync_integration_tests_run',
             '../chrome/chrome.gyp:unit_tests_run',
             '../net/net.gyp:net_unittests_run',
           ],
         }, # target_name: chromium_swarm_tests
       ],
     }],
   ], # conditions
 }