Add some remoting targets to GN build.

BUILD.gn

 # Copyright (c) 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.
 
 # This is the root build file for GN. GN will start processing by loading this
 # file, and recursively load all dependencies until all dependencies are either
 # resolved or known not to exist (which will cause the build to fail). So if
 # you add a new build file, there must be some path of dependencies from this
 # file to your new one or GN won't know about it.
 
@@ skipping 48 matching lines @@
     "//ipc",
     "//ipc/mojo",
     "//jingle:notifier",
     "//media",
     "//media/cast",
     "//mojo",
     "//net",
     "//pdf",
     "//ppapi:ppapi_c",
     "//printing",
+    "//remoting/client/plugin",
     "//sandbox",
     "//sdch",
     "//skia",
     "//sql",
     "//sync",
     "//third_party/WebKit/public:all_blink",
     "//third_party/angle:translator",
     "//third_party/brotli",
     "//third_party/cacheinvalidation",
     "//third_party/cld",
@@ skipping 141 matching lines @@
       "//ui/display",
       "//ui/views",
       "//ui/views/controls/webview",
 
       # Fails on Android for unknown reasons.
       "//third_party/flac",
       "//breakpad:symupload",
 
       # Not tested on Android yet:
       "//google_apis/gcm",
+      "//remoting/client/plugin",
       "//third_party/cld_2",
       "//third_party/libaddressinput",
       "//third_party/ffmpeg",
       "//ui:ui_unittests",
       "//ui/app_list",
       "//ui/web_dialogs",
       "//ui/wm",
       "//webkit/browser:storage",
       "//webkit/child",
     ]
   }
 
   if (use_ozone) {
     deps += [
       "//ui/ozone",
       "//ui/ozone/demo",
     ]
   }
 }
 
 }