Beginning of support for 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
new file mode 100644
index 0000000000000000000000000000000000000000..6327d1fb80b19e9317bbc8a906328e65cd4bd3e4
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+++ b/extensions/browser/content_verifier_filter.h
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+// 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_