Cleanup: Remove unused variables in chrome/ found by Scythe.

chrome/browser/chrome_content_browser_client.cc

 // Copyright (c) 2012 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 "chrome/browser/chrome_content_browser_client.h"
 
 #include <set>
 #include <utility>
 #include <vector>
 
@@ skipping 793 matching lines @@
 #endif
   host->AddFilter(new SearchProviderInstallStateMessageFilter(id, profile));
 #if defined(ENABLE_SPELLCHECK)
   host->AddFilter(new SpellCheckMessageFilter(id));
 #endif
 #if defined(OS_MACOSX)
   host->AddFilter(new SpellCheckMessageFilterMac(id));
 #endif
   host->AddFilter(new ChromeNetBenchmarkingMessageFilter(profile, context));
   host->AddFilter(new prerender::PrerenderMessageFilter(id, profile));
-  host->AddFilter(new TtsMessageFilter(id, host->GetBrowserContext()));
+  host->AddFilter(new TtsMessageFilter(host->GetBrowserContext()));
 #if defined(ENABLE_WEBRTC)
   WebRtcLoggingHandlerHost* webrtc_logging_handler_host =
       new WebRtcLoggingHandlerHost(profile);
   host->SetWebRtcLogMessageCallback(base::Bind(
       &WebRtcLoggingHandlerHost::LogMessage, webrtc_logging_handler_host));
   host->AddFilter(webrtc_logging_handler_host);
   host->SetUserData(host, new base::UserDataAdapter<WebRtcLoggingHandlerHost>(
       webrtc_logging_handler_host));
 #endif
 #if !defined(DISABLE_NACL)
@@ skipping 1589 matching lines @@
       switches::kDisableWebRtcEncryption,
     };
     to_command_line->CopySwitchesFrom(from_command_line,
                                       kWebRtcDevSwitchNames,
                                       arraysize(kWebRtcDevSwitchNames));
   }
 }
 #endif  // defined(ENABLE_WEBRTC)
 
 }  // namespace chrome