Revert 175073 because it fails to compile on Linux.

chrome/chrome_browser.gypi

Index: chrome/chrome_browser.gypi
===================================================================
--- chrome/chrome_browser.gypi	(revision 175074)
+++ chrome/chrome_browser.gypi	(working copy)
@@ -2458,9 +2458,16 @@
         }],
         ['OS=="linux"', {
           'dependencies': [
+            'mtp_file_entry_proto',
+            'mtp_storage_info_proto',
             '../build/linux/system.gyp:udev',
-            '../device/device.gyp:device_media_transfer_protocol',
           ],
+          'sources': [
+            'browser/media_transfer_protocol/media_transfer_protocol_daemon_client.cc',
+            'browser/media_transfer_protocol/media_transfer_protocol_daemon_client.h',
+            'browser/media_transfer_protocol/media_transfer_protocol_manager.cc',
+            'browser/media_transfer_protocol/media_transfer_protocol_manager.h',
+          ],
         }],
         ['OS=="linux" and chromeos==0', {
           'dependencies': [
@@ -3117,5 +3124,38 @@
       ],
      },
     ],
+    ['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': 'chrome/browser/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': 'chrome/browser/media_transfer_protocol',
+          },
+          'includes': ['../build/protoc.gypi'],
+        },
+      ],
+     },
+    ],
   ],
 }