Disabling flaky WebRtcAecDumpBrowserTest.TwoCallsWithAecDump on Win XP.

content/test/webrtc_content_browsertest_base.h

 // 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.
 
 #include "content/public/test/content_browser_test.h"
 
 namespace base {
 class CommandLine;
 }
 
@@ skipping 19 matching lines @@
   void DisableOpusIfOnAndroid();
 
   // Generates javascript code for a getUserMedia call.
   std::string GenerateGetUserMediaCall(const char* function_name,
                                        int min_width,
                                        int max_width,
                                        int min_height,
                                        int max_height,
                                        int min_frame_rate,
                                        int max_frame_rate) const;
+
+  bool OnWinXp() const;
 };
 
 }  // namespace content