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

chrome/browser/policy/configuration_policy_handler_list.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/policy/configuration_policy_handler_list.h"
 
 #include "base/stl_util.h"
 #include "base/values.h"
 #include "chrome/browser/policy/configuration_policy_handler.h"
 #include "chrome/browser/policy/policy_error_map.h"
@@ skipping 264 matching lines @@
     Value::TYPE_STRING },
   { key::kEnterpriseWebStoreName,
     prefs::kEnterpriseWebStoreName,
     Value::TYPE_STRING },
   { key::kEnableMemoryInfo,
     prefs::kEnableMemoryInfo,
     Value::TYPE_BOOLEAN },
   { key::kRestrictSigninToPattern,
     prefs::kGoogleServicesUsernamePattern,
     Value::TYPE_STRING },
+  { key::kDefaultMediaStreamSetting,
+    prefs::kManagedDefaultMediaStreamSetting,
+    Value::TYPE_INTEGER },
 
 #if defined(OS_CHROMEOS)
   { key::kChromeOsLockOnIdleSuspend,
     prefs::kEnableScreenLock,
     Value::TYPE_BOOLEAN },
   { key::kChromeOsReleaseChannel,
     prefs::kChromeOsReleaseChannel,
     Value::TYPE_STRING },
   { key::kGDataDisabled,
     prefs::kDisableGData,
@@ skipping 88 matching lines @@
 }
 
 void ConfigurationPolicyHandlerList::PrepareForDisplaying(
     PolicyMap* policies) const {
   std::vector<ConfigurationPolicyHandler*>::const_iterator handler;
   for (handler = handlers_.begin(); handler != handlers_.end(); ++handler)
     (*handler)->PrepareForDisplaying(policies);
 }
 
 }  // namespace policy