Instant: Use only one hidden WebContents per profile.

chrome/chrome_renderer.gypi

-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
+# Copyright 2012 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': 'renderer',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
       'dependencies': [
@@ skipping 250 matching lines @@
         'renderer/safe_browsing/phishing_dom_feature_extractor.cc',
         'renderer/safe_browsing/phishing_dom_feature_extractor.h',
         'renderer/safe_browsing/phishing_term_feature_extractor.cc',
         'renderer/safe_browsing/phishing_term_feature_extractor.h',
         'renderer/safe_browsing/phishing_thumbnailer.cc',
         'renderer/safe_browsing/phishing_thumbnailer.h',
         'renderer/safe_browsing/phishing_url_feature_extractor.cc',
         'renderer/safe_browsing/phishing_url_feature_extractor.h',
         'renderer/safe_browsing/scorer.cc',
         'renderer/safe_browsing/scorer.h',
+        'renderer/searchbox/embedded_searchbox.cc',
+        'renderer/searchbox/embedded_searchbox.h',
+        'renderer/searchbox/embedded_searchbox_extension.cc',
+        'renderer/searchbox/embedded_searchbox_extension.h',
         'renderer/searchbox/searchbox.cc',
         'renderer/searchbox/searchbox.h',
         'renderer/searchbox/searchbox_extension.cc',
         'renderer/searchbox/searchbox_extension.h',
         'renderer/security_filter_peer.cc',
         'renderer/security_filter_peer.h',
         'renderer/spellchecker/cocoa_spelling_engine_mac.cc',
         'renderer/spellchecker/cocoa_spelling_engine_mac.h',
         'renderer/spellchecker/custom_dictionary_engine.cc',
         'renderer/spellchecker/custom_dictionary_engine.h',
@@ skipping 92 matching lines @@
               'export_dependent_settings': [
                 '<(allocator_target)',
               ],
             }],
           ],
         }],
       ],
     },
   ],
 }