GN: Give static_libs with common names unique output_name

chrome/common/net/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/crypto.gni")
 
 # GYP version: chrome/chrome_common.gypi:common_net
 static_library("net") {
+  output_name = "common_net"
   sources = [
     "net_error_info.cc",
     "net_error_info.h",
     "net_resource_provider.cc",
     "net_resource_provider.h",
     "predictor_common.h",
     "url_util.cc",
     "url_util.h",
     "x509_certificate_model.cc",
     "x509_certificate_model.h",
@@ skipping 44 matching lines @@
     # Already removed for non-Linux cases above.
     sources -= [
       "x509_certificate_model_openssl.cc",
     ]
   }
 
   if (is_win) {
     cflags = [ "/wd4267" ]
   }
 }