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diff --git a/chromium/third_party/webrtc/base/macconversion.h b/chromium/third_party/webrtc/base/macconversion.h
new file mode 100644
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+++ b/chromium/third_party/webrtc/base/macconversion.h
@@ -0,0 +1,39 @@
+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_BASE_MACCONVERSION_H_
+#define WEBRTC_BASE_MACCONVERSION_H_
+
+#if defined(WEBRTC_MAC) && !defined(WEBRTC_IOS)
+
+#include <CoreFoundation/CoreFoundation.h>
+
+#include <string>
+
+// given a CFStringRef, attempt to convert it to a C++ string.
+// returns true if it succeeds, false otherwise.
+// We can safely assume, given our context, that the string is
+// going to be in ASCII, because it will either be an IP address,
+// or a domain name, which is guaranteed to be ASCII-representable.
+bool p_convertHostCFStringRefToCPPString(const CFStringRef cfstr,
+                                         std::string& cppstr);
+
+// Convert the CFNumber to an integer, putting the integer in the location
+// given, and returhing true, if the conversion succeeds.
+// If given a NULL or a non-CFNumber, returns false.
+// This is pretty aggresive about trying to convert to int.
+bool p_convertCFNumberToInt(CFNumberRef cfn, int* i);
+
+// given a CFNumberRef, determine if it represents a true value.
+bool p_isCFNumberTrue(CFNumberRef cfn);
+
+#endif  // WEBRTC_MAC && !defined(WEBRTC_IOS)
+
+#endif  // WEBRTC_BASE_MACCONVERSION_H_