Convert test_support source sets to static libs

chrome/browser/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/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 973 matching lines @@
 
   #GYP: '//chrome/chrome_browser.gypi:delta_file_proto'
   proto_library("delta_file_proto") {
     sources = [
       "android/proto/delta_file.proto",
     ]
   }
 }
 
 if (is_win) {
-  source_set("chrome_process_finder") {
+  static_library("chrome_process_finder") {
     sources = [
       "win/chrome_process_finder.cc",
       "win/chrome_process_finder.h",
     ]
     deps = [
       "//base",
       "//chrome/common:constants",
     ]
     if (enable_configuration_policy) {
       deps += [ "//chrome/browser/policy:path_parser" ]
@@ skipping 313 matching lines @@
       "media/pepper_cdm_test_helper.h",
     ]
     deps += [
       ":pepper_cdm_test_constants",
       "//media:cdm_paths",
     ]
   }
 }
 
 # In GYP this is part of test_support_ui.
-source_set("test_support_ui") {
+static_library("test_support_ui") {
   testonly = true
 
   # Always include this via the main test support UI target.
   visibility = [ "//chrome/test:test_support_ui" ]
 
   sources = [
     "password_manager/password_manager_test_base.cc",
     "password_manager/password_manager_test_base.h",
     "signin/token_revoker_test_utils.cc",
     "signin/token_revoker_test_utils.h",
     "ui/webui/signin/login_ui_test_utils.cc",
     "ui/webui/signin/login_ui_test_utils.h",
   ]
 
   configs += [ "//build/config:precompiled_headers" ]
 
   deps = [
     "//components/metrics:test_support",
     "//components/password_manager/content/public/interfaces",
     "//components/password_manager/core/browser:test_support",
     "//skia",
     "//testing/gtest",
   ]
 }
 
 if (enable_rlz_support) {
-  source_set("rlz") {
+  static_library("rlz") {
     sources =
         rebase_path(gypi_values.chrome_browser_rlz_sources, ".", "//chrome")
     deps = [
       "//components/google/core/browser",
       "//components/omnibox/browser",
       "//components/rlz",
       "//components/search_engines",
       "//rlz:rlz_lib",
     ]
   }
 }
 
 if (enable_pepper_cdms) {
   # These constants are separated so that test binaries can use them without
   # linking all of the test support.
-  source_set("pepper_cdm_test_constants") {
+  static_library("pepper_cdm_test_constants") {
     testonly = true
     visibility = [ "//chrome/*" ]
     sources = [
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }