Shrink gn's chrome.dll - now smaller than gyp's

media/gpu/ipc/service/BUILD.gn

 # Copyright 2016 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.
 
-source_set("service") {
+if (is_component_build) {
+  link_target_type = "source_set"
+} else {
+  link_target_type = "static_library"
+}
+target(link_target_type, "service") {
   visibility = [
     "//media/*",
     "//content/gpu/*",
     "//content/public/gpu/*",
     "//services/ui/gpu/*",
   ]
 
   sources = [
     "gpu_jpeg_decode_accelerator.cc",
     "gpu_jpeg_decode_accelerator.h",
@@ skipping 29 matching lines @@
   }
 
   if (is_win) {
     configs += [ "//build/config/compiler:no_size_t_to_int_warning" ]
   }
 
   if (is_mac) {
     deps += [ "//third_party/webrtc/common_video:common_video" ]
   }
 }