Separate plugin_metadata from plugin_installer, thread-safe plugin_finder

chrome/chrome_browser.gypi

 # Copyright (c) 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': 'browser',
       'type': 'static_library',
@@ skipping 1215 matching lines @@
         'browser/plugins/plugin_data_remover_helper.cc',
         'browser/plugins/plugin_data_remover_helper.h',
         'browser/plugins/plugin_finder.cc',
         'browser/plugins/plugin_finder.h',
         'browser/plugins/plugin_installer.cc',
         'browser/plugins/plugin_installer.h',
         'browser/plugins/plugin_infobar_delegates.cc',
         'browser/plugins/plugin_infobar_delegates.h',
         'browser/plugins/plugin_installer_observer.cc',
         'browser/plugins/plugin_installer_observer.h',
+        'browser/plugins/plugin_metadata.cc',
+        'browser/plugins/plugin_metadata.h',
         'browser/plugins/plugin_observer.cc',
         'browser/plugins/plugin_observer.h',
         'browser/plugins/plugin_prefs.cc',
         'browser/plugins/plugin_prefs.h',
         'browser/plugins/plugin_prefs_factory.cc',
         'browser/plugins/plugin_prefs_factory.h',
         'browser/plugins/plugin_status_pref_setter.cc',
         'browser/plugins/plugin_status_pref_setter.h',
         'browser/policy/async_policy_loader.cc',
         'browser/policy/async_policy_loader.h',
@@ skipping 1418 matching lines @@
               # Avoid gcc 4.5 miscompilation of template_url.cc
               # as per http://crbug.com/41887
               'cflags': [
                 '-fno-ipa-cp',
               ],
             }],
           ],
         }],
         ['enable_plugin_installation==0', {
           'sources!': [
-            # TODO(ibraaaa): Return plugin_installer.{h/cc}.
+            'browser/plugins/plugin_installer.cc',
+            'browser/plugins/plugin_installer.h',
             'browser/plugins/plugin_installer_observer.cc',
             'browser/plugins/plugin_installer_observer.h',
           ],
         }],
         ['enable_protector_service==0', {
           'sources!': [
             'browser/protector/base_prefs_change.cc',
             'browser/protector/base_prefs_change.h',
             'browser/protector/base_setting_change.cc',
             'browser/protector/base_setting_change.h',
@@ skipping 151 matching lines @@
           'includes': [ '../build/jni_generator.gypi' ],
           'dependencies': [
             'android_jar_jni_headers',
           ],
         },
       ],
      },
     ],
   ],
 }