Re-land 69416 - IndexedDB: Preparatory patch for using Date objects as keys....

chrome/common/indexed_db_key.cc

 // Copyright (c) 2010 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/indexed_db_key.h"
 
 #include "base/logging.h"
 #include "third_party/WebKit/WebKit/chromium/public/WebString.h"
 
 using WebKit::WebIDBKey;
@@ skipping 38 matching lines @@
 IndexedDBKey::operator WebIDBKey() const {
   switch (type_) {
     case WebIDBKey::NullType:
       return WebIDBKey::createNull();
     case WebIDBKey::StringType:
       return WebIDBKey(string_);
     case WebIDBKey::NumberType:
       return WebIDBKey(number_);
     case WebIDBKey::InvalidType:
       return WebIDBKey::createInvalid();
+    default:
+      // TODO(hans): Implement the WebIDBKey::DateType case once that is added
+      // WebKit side, and then remove this temporary default: clause.
+      return WebIDBKey::createInvalid();
   }
   NOTREACHED();
   return WebIDBKey::createInvalid();
 }