More implementation details of extension content verification

extensions/browser/content_verifier_filter.h

Index: extensions/browser/content_verifier_filter.h
diff --git a/extensions/browser/content_verifier_filter.h b/extensions/browser/content_verifier_filter.h
deleted file mode 100644
index 6327d1fb80b19e9317bbc8a906328e65cd4bd3e4..0000000000000000000000000000000000000000
--- a/extensions/browser/content_verifier_filter.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2014 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 EXTENSIONS_BROWSER_CONTENT_VERIFIER_FILTER_H_
-#define EXTENSIONS_BROWSER_CONTENT_VERIFIER_FILTER_H_
-
-#include "base/bind.h"
-#include "base/callback.h"
-
-namespace extensions {
-
-class Extension;
-
-// A callback function for deciding if a given extension should have it's
-// content verified or not. Returning true means "yes, it should be verified".
-//
-// This function should be prepared to be called on any thread.
-typedef base::Callback<bool(const Extension*)> ContentVerifierFilter;
-
-}  // namespace extensions
-
-#endif  // EXTENSIONS_BROWSER_CONTENT_VERIFIER_FILTER_H_