Implement delaying resource requests until privacy blacklists are ready.

chrome/browser/privacy_blacklist/blacklist_interceptor.h

Index: chrome/browser/privacy_blacklist/blacklist_interceptor.h
diff --git a/chrome/browser/privacy_blacklist/blacklist_interceptor.h b/chrome/browser/privacy_blacklist/blacklist_interceptor.h
new file mode 100644
index 0000000000000000000000000000000000000000..308ce9c7f1b3405fcec0056720bc6f8fdcdd9f7f
--- /dev/null
+++ b/chrome/browser/privacy_blacklist/blacklist_interceptor.h
@@ -0,0 +1,23 @@
+// Copyright (c) 2009 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 CHROME_BROWSER_PRIVACY_BLACKLIST_BLACKLIST_INTERCEPTOR_H_
+#define CHROME_BROWSER_PRIVACY_BLACKLIST_BLACKLIST_INTERCEPTOR_H_
+
+#include "net/url_request/url_request.h"
+
+// Intercepts requests matched by a privacy blacklist.
+class BlacklistInterceptor : public URLRequest::Interceptor {
+ public:
+  BlacklistInterceptor();
+  ~BlacklistInterceptor();
+
+  // URLRequest::Interceptor:
+  virtual URLRequestJob* MaybeIntercept(URLRequest* request);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(BlacklistInterceptor);
+};
+
+#endif  // CHROME_BROWSER_PRIVACY_BLACKLIST_BLACKLIST_INTERCEPTOR_H_