Try 2 [Media Gallery] Move chrome/browser/media_transfer_protocol code to src/device.

device/device.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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 133 matching lines @@
         ['chromeos==1', {
           'dependencies': [
             '../build/linux/system.gyp:dbus',
             '../chromeos/chromeos.gyp:chromeos_test_support',
             '../dbus/dbus.gyp:dbus',
           ]
         }],
       ],
     },
   ],
+  'conditions': [
+    ['OS=="linux"', {
+      'targets': [
+        {
+          # Protobuf compiler / generator for the MtpFileEntry and
+          # MtpFileEntries protocol buffers.
+          'target_name': 'mtp_file_entry_proto',
+          'type': 'static_library',
+          'sources': [
+            '../third_party/cros_system_api/dbus/mtp_file_entry.proto',
+          ],
+          'variables': {
+            'proto_in_dir': '../third_party/cros_system_api/dbus',
+            'proto_out_dir': 'device/media_transfer_protocol',
+          },
+          'includes': ['../build/protoc.gypi'],
+        },
+        {
+          # Protobuf compiler / generator for the MtpStorageInfo protocol
+          # buffer.
+          'target_name': 'mtp_storage_info_proto',
+          'type': 'static_library',
+          'sources': [
+            '../third_party/cros_system_api/dbus/mtp_storage_info.proto',
+          ],
+          'variables': {
+            'proto_in_dir': '../third_party/cros_system_api/dbus',
+            'proto_out_dir': 'device/media_transfer_protocol',
+          },
+          'includes': ['../build/protoc.gypi'],
+        },
+        {
+          'target_name': 'device_media_transfer_protocol',
+          'type': 'static_library',
+          'dependencies': [
+            '../build/linux/system.gyp:dbus',
+            'mtp_file_entry_proto',
+            'mtp_storage_info_proto',
+          ],
+          'sources': [
+            'media_transfer_protocol/media_transfer_protocol_daemon_client.cc',
+            'media_transfer_protocol/media_transfer_protocol_daemon_client.h',
+            'media_transfer_protocol/media_transfer_protocol_manager.cc',
+            'media_transfer_protocol/media_transfer_protocol_manager.h',
+          ],
+        },
+      ],
+    }],
+  ],
 }