Update build files to use webrtc_overrides in Chromium instead of overrides.

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 314 matching lines @@
 
   if (is_posix) {
     sources += [
       "unixfilesystem.cc",
       "unixfilesystem.h",
     ]
   }
 
   if (build_with_chromium) {
     sources += [
-      "../overrides/webrtc/base/logging.cc",
-      "../overrides/webrtc/base/logging.h",
+      "../../webrtc_overrides/webrtc/base/logging.cc",
+      "../../webrtc_overrides/webrtc/base/logging.h",
     ]
 
     deps += [ "..:webrtc_common" ]
 
     if (is_win) {
-      sources += [ "../overrides/webrtc/base/win32socketinit.cc" ]
+      sources += [ "../../webrtc_overrides/webrtc/base/win32socketinit.cc" ]
     }
 
     include_dirs = [
-      "../overrides",
+      "../../webrtc_overrides",
       "../../boringssl/src/include",
     ]
 
     public_configs += [ ":rtc_base_chromium_config" ]
   } else {
     sources += [
       "bandwidthsmoother.cc",
       "bandwidthsmoother.h",
       "bind.h",
       "bind.h.pump",
@@ skipping 270 matching lines @@
       "linux.cc",
       "linux.h",
     ]
   }
 
   if (is_nacl) {
     deps += [ "//native_client_sdk/src/libraries/nacl_io" ]
     defines += [ "timezone=_timezone" ]
   }
 }