add "always allow" option to the mediastream infobar and allow user to allow/not allow acces to devi

chrome/browser/content_settings/content_settings_utils.cc

 // 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.
 
 #include "chrome/browser/content_settings/content_settings_utils.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 17 matching lines @@
   "javascript",
   "plugins",
   "popups",
   "geolocation",
   "notifications",
   "intents",
   "auto-select-certificate",
   "fullscreen",
   "mouselock",
   "mixed-script",
+  "media-stream"
 };
 COMPILE_ASSERT(arraysize(kTypeNames) == CONTENT_SETTINGS_NUM_TYPES,
                type_names_incorrect_size);
 
 const char kPatternSeparator[] = ",";
 
 }  // namespace
 
 namespace content_settings {
 
@@ skipping 135 matching lines @@
 
 void GetRendererContentSettingRules(const HostContentSettingsMap* map,
                                     RendererContentSettingRules* rules) {
   map->GetSettingsForOneType(CONTENT_SETTINGS_TYPE_IMAGES, "",
                              &(rules->image_rules));
   map->GetSettingsForOneType(CONTENT_SETTINGS_TYPE_JAVASCRIPT, "",
                              &(rules->script_rules));
 }
 
 }  // namespace content_settings