Moves shared history test helpers into util classes.

components/omnibox/browser/in_memory_url_index_test_util.h

Index: components/omnibox/browser/in_memory_url_index_test_util.h
diff --git a/components/omnibox/browser/in_memory_url_index_test_util.h b/components/omnibox/browser/in_memory_url_index_test_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..dd9c2a74d7b53a637a8912ba08ccafb0d791dc00
--- /dev/null
+++ b/components/omnibox/browser/in_memory_url_index_test_util.h
@@ -0,0 +1,18 @@
+// Copyright 2016 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.
+
+#ifndef COMPONENTS_OMNIBOX_BROWSER_IN_MEMORY_URL_INDEX_TEST_UTIL_H_
+#define COMPONENTS_OMNIBOX_BROWSER_IN_MEMORY_URL_INDEX_TEST_UTIL_H_
+
+class InMemoryURLIndex;
+
+namespace history {
+class HistoryService;
+}
+
+void RebuildInMemoryURLIndex(InMemoryURLIndex* index,
+                             history::HistoryService* history_service);
+void BlockUntilInMemoryURLIndexIsRefreshed(InMemoryURLIndex* index);
+
+#endif  // COMPONENTS_OMNIBOX_BROWSER_IN_MEMORY_URL_INDEX_TEST_UTIL_H_