Partially componentize //chrome/browser/search/search.{h,cc}

components/search/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.
 
 static_library("search") {
   sources = [
     "search.cc",
     "search.h",
     "search_switches.cc",
     "search_switches.h",
   ]
 
   deps = [
     "//base",
+    "//components/google/core/browser",
+    "//components/search_engines",
+    "//url",
   ]
 }