Convert some component source sets to static library

components/omnibox/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("//third_party/protobuf/proto_library.gni")
 
 if (is_android) {
   import("//build/config/android/rules.gni")
 }
 
-source_set("browser") {
+static_library("browser") {
   sources = [
     "answers_cache.cc",
     "answers_cache.h",
     "autocomplete_classifier.cc",
     "autocomplete_classifier.h",
     "autocomplete_controller.cc",
     "autocomplete_controller.h",
     "autocomplete_controller_delegate.h",
     "autocomplete_input.cc",
     "autocomplete_input.h",
@@ skipping 233 matching lines @@
     "//components/variations",
     "//net:test_support",
     "//sql",
     "//sql:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//ui/base",
     "//url",
   ]
 }