Use relative names in GN to make Chromium happy

webrtc/modules/audio_coding/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/webrtc.gni")
 import("audio_coding.gni")
@@ skipping 27 matching lines @@
                       "../../common_audio",
                       "../../system_wrappers",
                     ]
 
 rtc_static_library("audio_format") {
   sources = [
     "codecs/audio_format.cc",
     "codecs/audio_format.h",
   ]
   deps = [
-    "//webrtc:webrtc_common",
+    "../..:webrtc_common",
   ]
 }
 
 rtc_static_library("audio_format_conversion") {
   sources = [
     "codecs/audio_format_conversion.cc",
     "codecs/audio_format_conversion.h",
   ]
   deps = [
     ":audio_format",
-    "//webrtc:webrtc_common",
-    "//webrtc/base:rtc_base_approved",
+    "../..:webrtc_common",
+    "../../base:rtc_base_approved",
   ]
 }
 
 rtc_source_set("audio_decoder_factory_interface") {
   sources = [
     "codecs/audio_decoder_factory.h",
   ]
   deps = [
     ":audio_decoder_interface",
     ":audio_format",
-    "//webrtc/base:rtc_base_approved",
+    "../../base:rtc_base_approved",
   ]
 }
 
 rtc_static_library("builtin_audio_decoder_factory") {
   sources = [
     "codecs/builtin_audio_decoder_factory.cc",
     "codecs/builtin_audio_decoder_factory.h",
   ]
   deps = [
            "../..:webrtc_common",
@@ skipping 1554 matching lines @@
       "../../test:test_support_main",
       "//testing/gtest",
     ]
 
     if (!build_with_chromium && is_clang) {
       # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
       suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
     }
   }
 }