Remove implicit-int-conversion warnings.

webrtc/video_engine/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")
 
@@ skipping 36 matching lines @@
 
   configs += [ "..:common_config" ]
   public_configs = [ "..:common_inherited_config" ]
 
   if (is_clang) {
     # Suppress warnings from Chrome's Clang plugins.
     # See http://code.google.com/p/webrtc/issues/detail?id=163 for details.
     configs -= [ "//build/config/clang:find_bad_constructs" ]
   }
 
-  if (is_win) {
-    cflags = [
-      # TODO(jschuh): Bug 1348: fix size_t to int truncations.
-      "/wd4267",  # size_t to int truncation.
-
-      # Bug 261.
-      "/wd4373",  # legacy warning for ignoring const / volatile in signatures.
-    ]
-  }
-
   deps = [
     "..:webrtc_common",
     "../common_video",
     "../modules/bitrate_controller",
     "../modules/rtp_rtcp",
     "../modules/utility",
     "../modules/video_capture:video_capture_module",
     "../modules/video_coding",
     "../modules/video_processing",
     "../modules/video_render:video_render_module",
     "../voice_engine",
     "../system_wrappers",
   ]
 }