Cleaning up remoting GN build files. Condense the sources.

remoting/host/it2me/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/features.gni")
 import("//remoting/remoting_enable.gni")
-import("//remoting/remoting_srcs.gni")
 import("//remoting/remoting_locales.gni")
 import("//remoting/remoting_version.gni")
 
 if (is_win) {
   import("//remoting/host/predefines_win.gni")
 }
 if (is_mac) {
   import("//build/config/mac/rules.gni")
   import("//third_party/icu/config.gni")
 }
 
 source_set("common") {
-  sources = rebase_path(
-          remoting_host_srcs_gypi_values.remoting_it2me_host_static_sources,
-          ".",
-          "//remoting")
+  sources = [
+    "it2me_confirmation_dialog.cc",
+    "it2me_confirmation_dialog.h",
+    "it2me_confirmation_dialog_chromeos.cc",
+    "it2me_confirmation_dialog_proxy.cc",
+    "it2me_confirmation_dialog_proxy.h",
+    "it2me_host.cc",
+    "it2me_host.h",
+    "it2me_native_messaging_host.cc",
+    "it2me_native_messaging_host.h",
+  ]
 
   if (is_android) {
     sources -= [
       "it2me_native_messaging_host.cc",
       "it2me_native_messaging_host.h",
     ]
   }
 
   configs += [
     "//build/config/compiler:wexit_time_destructors",
@@ skipping 140 matching lines @@
       if (enable_webrtc) {
         deps += [ "//third_party/libjingle:libjingle_webrtc" ]
       }
 
       if (is_desktop_linux) {
         deps += [ "//build/config/linux/gtk2" ]
       }
     }
   }
 }