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

components/search.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'search',
       'type': 'static_library',
       'dependencies': [
-        '../base/base.gyp:base'
+        '../base/base.gyp:base',
+        '../url/url.gyp:url_lib',
+        'google_core_browser',
+        'search_engines',
       ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'search/search.cc',
         'search/search.h',
         'search/search_switches.cc',
         'search/search_switches.h',
       ],
     },
   ],
 }