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

chrome/common/pref_names.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/common/pref_names.h"
 
 #include "base/basictypes.h"
 
 namespace prefs {
 
@@ skipping 917 matching lines @@
 const char kPinnedTabs[] = "pinned_tabs";
 #endif
 
 // Integer containing the default Geolocation content setting.
 const char kGeolocationDefaultContentSetting[] =
     "geolocation.default_content_setting";
 
 // Dictionary that maps [frame, toplevel] to their Geolocation content setting.
 const char kGeolocationContentSettings[] = "geolocation.content_settings";
 
+
+// A whitelist of Dictionary that maps [origin, device] to give websites access
+// to the microphones.
+const char kMediaStreamAudioDevicesWhitelist[] =
+    "media_stream.audio_devices_whitelist";
+
+// A whitelist of Dictionary that maps [origin, device] to give websites access
+// to the cameras.
+const char kMediaStreamVideoDevicesWhitelist[] =
+    "media_stream.video_devices_whitelist";
+
 // Preference to disable 3D APIs (WebGL, Pepper 3D).
 const char kDisable3DAPIs[] = "disable_3d_apis";
 
 // Whether to enable hyperlink auditing ("<a ping>").
 const char kEnableHyperlinkAuditing[] = "enable_a_ping";
 
 // Whether to enable sending referrers.
 const char kEnableReferrers[] = "enable_referrers";
 
 // Boolean to enable reporting memory info to page.
@@ skipping 856 matching lines @@
 const char kManagedDefaultJavaScriptSetting[] =
     "profile.managed_default_content_settings.javascript";
 const char kManagedDefaultPluginsSetting[] =
     "profile.managed_default_content_settings.plugins";
 const char kManagedDefaultPopupsSetting[] =
     "profile.managed_default_content_settings.popups";
 const char kManagedDefaultGeolocationSetting[] =
     "profile.managed_default_content_settings.geolocation";
 const char kManagedDefaultNotificationsSetting[] =
     "profile.managed_default_content_settings.notifications";
+const char kManagedDefaultMediaStreamSetting[] =
+    "mediastream.default_content_settings";
 
 // Preferences that are exclusively used to store managed
 // content settings patterns.
 const char kManagedCookiesAllowedForUrls[] =
     "profile.managed_cookies_allowed_for_urls";
 const char kManagedCookiesBlockedForUrls[] =
     "profile.managed_cookies_blocked_for_urls";
 const char kManagedCookiesSessionOnlyForUrls[] =
     "profile.managed_cookies_sessiononly_for_urls";
 const char kManagedImagesAllowedForUrls[] =
@@ skipping 108 matching lines @@
 const char kInManagedMode[] = "managed_mode";
 
 // Counts how many more times the 'profile on a network share' warning should be
 // shown to the user before the next silence period.
 const char kNetworkProfileWarningsLeft[] = "network_profile.warnings_left";
 // Tracks the time of the last shown warning. Used to reset
 // |network_profile.warnings_left| after a silence period.
 const char kNetworkProfileLastWarningTime[] =
     "network_profile.last_warning_time";
 }  // namespace prefs