GN: Give static_libs with common names unique output_name

components/metrics/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.
 
 # GYP version: components/metrics.gypi:metrics
 source_set("metrics") {
   sources = [
     "compression_utils.cc",
     "compression_utils.h",
     "cloned_install_detector.cc",
@@ skipping 32 matching lines @@
     "//components/metrics/proto",
     "//components/variations",
     "//third_party/zlib",
   ]
 
   forward_dependent_configs_from = [ "//components/metrics/proto" ]
 }
 
 # GYP version: components/metrics.gypi:metrics_net
 static_library("net") {
+  output_name = "metrics_net"
   sources = [
     "net/net_metrics_log_uploader.cc",
     "net/net_metrics_log_uploader.h",
   ]
 
   deps = [
     ":metrics",
     "//net",
   ]
 
   forward_dependent_configs_from = [ ":metrics" ]
 }
 
 # GYP version: components/metrics.gypi:metrics_test_support
 static_library("test_support") {
+  output_name = "metrics_test_support"
   sources = [
     "test_metrics_service_client.cc",
     "test_metrics_service_client.h",
   ]
 
   deps = [
     ":metrics",
   ]
 
   forward_dependent_configs_from = [ ":metrics" ]
 }
 
 # TODO(GYP): metrics_chromeos