Remove unused dbus.cc/.h and related things.

webrtc/base/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("//build/config/crypto.gni")
 import("//build/config/ui.gni")
@@ skipping 549 matching lines @@
       "transformadapter.h",
       "virtualsocketserver.cc",
       "virtualsocketserver.h",
       "window.h",
       "windowpicker.h",
       "windowpickerfactory.h",
     ]
 
     if (is_linux) {
       sources += [
-        "dbus.cc",
-        "dbus.h",
-        "libdbusglibsymboltable.cc",
-        "libdbusglibsymboltable.h",
         "linuxfdwalk.c",
         "linuxfdwalk.h",
       ]
     }
 
     if (is_posix) {
       sources += [
         "latebindingsymboltable.cc",
         "latebindingsymboltable.h",
       ]
@@ skipping 218 matching lines @@
       "java/src/org/webrtc/Logging.java",
       "java/src/org/webrtc/Size.java",
       "java/src/org/webrtc/ThreadUtils.java",
     ]
 
     deps = [
       "//base:base_java",
     ]
   }
 }