Reduce chrome.exe .text size by 50 KB with static_library

breakpad/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/symlink.gni")
 import("//testing/test.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
@@ skipping 838 matching lines @@
     public_configs = [ ":client_config" ]
   }
 
   config("breakpad_handler_warnings") {
     if (is_clang) {
       # See https://code.google.com/p/google-breakpad/issues/detail?id=658.
       cflags = [ "-Wno-reorder" ]
     }
   }
 
-  source_set("breakpad_handler") {
+  static_library("breakpad_handler") {
     configs += [ ":handler_config" ]
     if (is_win) {
       public_configs = [ ":handler_config" ]
     }
 
     defines = [ "BREAKPAD_NO_TERMINATE_THREAD" ]
 
     sources = [
       "src/client/windows/crash_generation/client_info.cc",
       "src/client/windows/crash_generation/client_info.h",
@@ skipping 27 matching lines @@
 
 if (is_android) {
   # TODO(GYP_GONE) Delete this after we've converted everything to GN.
   group("breakpad_unittests_deps") {
     testonly = true
     deps = [
       ":breakpad_unittests",
     ]
   }
 }