Allow script to request durable storage permission (chrome side)

chrome/browser/permissions/permission_context_uma_util.cc

Index: chrome/browser/permissions/permission_context_uma_util.cc
diff --git a/chrome/browser/permissions/permission_context_uma_util.cc b/chrome/browser/permissions/permission_context_uma_util.cc
index d8d385134aee3f124b235067ba21900e2988c207..099d0b4a86260e96fac5780ce0e648d7c9974722 100644
--- a/chrome/browser/permissions/permission_context_uma_util.cc
+++ b/chrome/browser/permissions/permission_context_uma_util.cc
@@ -131,6 +131,13 @@ void RecordPermissionAction(ContentSettingsType permission,
             action);
         break;
 #endif
+      case CONTENT_SETTINGS_TYPE_DURABLE_STORAGE:
+        PERMISSION_ACTION_UMA(  // Cargo culted

[mlamouri (slow - plz ping), 2015/08/05 13:54:55]

nit: remove Cargo culted comment.

[dgrogan, 2015/08/07 20:11:44]

Done.

+            secure_origin, "ContentSettings.PermissionActions_DurableStorage",
+            "ContentSettings.PermissionActionsSecureOrigin_DurableStorage",
+            "ContentSettings.PermissionActionsInsecureOrigin_DurableStorage",
+            action);
+        break;
       default:
         NOTREACHED() << "PERMISSION " << permission << " not accounted for";
     }
@@ -154,6 +161,8 @@ std::string PermissionTypeToString(PermissionType permission_type) {
       return "Geolocation";
     case PermissionType::PROTECTED_MEDIA_IDENTIFIER:
       return "ProtectedMediaIdentifier";
+    case PermissionType::DURABLE_STORAGE:
+      return "DurableStorage";
     case PermissionType::NUM:
       break;
   }
@@ -193,6 +202,9 @@ void RecordPermissionRequest(ContentSettingsType permission,
       type = PermissionType::PROTECTED_MEDIA_IDENTIFIER;
       break;
 #endif
+    case CONTENT_SETTINGS_TYPE_DURABLE_STORAGE:
+      type = content::PermissionType::DURABLE_STORAGE;
+      break;
     default:
       NOTREACHED() << "PERMISSION " << permission << " not accounted for";
       return;