Enforce SafetyMode for YouTube if prefs::kForceSafeSearch is on.

chrome/browser/net/safe_search_util.h

Index: chrome/browser/net/safe_search_util.h
diff --git a/chrome/browser/net/safe_search_util.h b/chrome/browser/net/safe_search_util.h
new file mode 100644
index 0000000000000000000000000000000000000000..b67de1c6e207e01670d9d9c5cd8fe091ffdf1ffe
--- /dev/null
+++ b/chrome/browser/net/safe_search_util.h
@@ -0,0 +1,29 @@
+// Copyright (c) 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 CHROME_BROWSER_NET_SAFE_SEARCH_UTIL_H_
+#define CHROME_BROWSER_NET_SAFE_SEARCH_UTIL_H_
+
+class GURL;
+
+namespace net {
+class HttpRequestHeaders;
+class URLRequest;
+}
+
+namespace safe_search_util {
+
+// If |request| is a request to Google Web Search the function
+// enforces that the SafeSearch query parameters are set to active.
+// Sets the query part of |new_url| with the new value of the parameters.
+void ForceGoogleSafeSearch(const net::URLRequest* request, GURL* new_url);
+
+// If |request| is a request to Youtube, enforces Youtube's Safety Mode by
+// adding/modifying Youtube's PrefCookie header.
+void ForceYoutubeSafetyMode(const net::URLRequest* request,
+                            net::HttpRequestHeaders* headers);
+
+}  // namespace safe_search_util
+
+#endif  // CHROME_BROWSER_NET_SAFE_SEARCH_UTIL_H_