Revert "Revert 266297 "1. Handle the case of empty embedder_extension_id...""

chrome/browser/guestview/adview/adview_constants.h

Index: chrome/browser/guestview/adview/adview_constants.h
diff --git a/chrome/browser/guestview/adview/adview_constants.h b/chrome/browser/guestview/adview/adview_constants.h
deleted file mode 100644
index 5bb5490112638429541370cbfe99873388aee05d..0000000000000000000000000000000000000000
--- a/chrome/browser/guestview/adview/adview_constants.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright 2013 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.
-
-// Constants used for the adview API.
-
-#ifndef CHROME_BROWSER_GUESTVIEW_ADVIEW_ADVIEW_CONSTANTS_H_
-#define CHROME_BROWSER_GUESTVIEW_ADVIEW_ADVIEW_CONSTANTS_H_
-
-namespace adview {
-
-// Events.
-extern const char kEventLoadAbort[];
-extern const char kEventLoadCommit[];
-
-}  // namespace adview
-
-#endif  // CHROME_BROWSER_GUESTVIEW_ADVIEW_ADVIEW_CONSTANTS_H_
-