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

chrome/common/indexed_db_key.cc

Index: chrome/common/indexed_db_key.cc
===================================================================
--- chrome/common/indexed_db_key.cc	(revision 69525)
+++ chrome/common/indexed_db_key.cc	(working copy)
@@ -56,6 +56,10 @@
       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();