Revert of Optimizes the operation of DeleteDatabase when no backing store exists.

content/browser/indexed_db/indexed_db_factory_impl.cc

Index: content/browser/indexed_db/indexed_db_factory_impl.cc
diff --git a/content/browser/indexed_db/indexed_db_factory_impl.cc b/content/browser/indexed_db/indexed_db_factory_impl.cc
index 039cbddfbbf121826def25edb702623d1b52e4bc..f818f3f6181f7adff689abe7ec8308c47d497cfd 100644
--- a/content/browser/indexed_db/indexed_db_factory_impl.cc
+++ b/content/browser/indexed_db/indexed_db_factory_impl.cc
@@ -254,26 +254,6 @@
     if (s.IsCorruption()) {
       HandleBackingStoreCorruption(origin_url, error);
     }
-    return;
-  }
-
-  std::vector<base::string16> names = backing_store->GetDatabaseNames(&s);
-  if (!s.ok()) {
-    DLOG(ERROR) << "Internal error getting database names";
-    IndexedDBDatabaseError error(blink::WebIDBDatabaseExceptionUnknownError,
-                                 "Internal error opening backing store for "
-                                 "indexedDB.deleteDatabase.");
-    callbacks->OnError(error);
-    backing_store = NULL;
-    if (s.IsCorruption())
-      HandleBackingStoreCorruption(origin_url, error);
-    return;
-  }
-  if (!ContainsValue(names, name)) {
-    const int64 version = 0;
-    callbacks->OnSuccess(version);
-    backing_store = NULL;
-    ReleaseBackingStore(origin_url, false /* immediate */);
     return;
   }