Remove DumpWithoutCrashing() from extension_prefs

chrome/app/chrome_crash_reporter_client_win.cc

 // Copyright 2013 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.
 
 // TODO(ananta/scottmg)
 // Add test coverage for Crashpad.
 #include "chrome/app/chrome_crash_reporter_client_win.h"
 
 #include <assert.h>
 #include <windows.h>
@@ skipping 172 matching lines @@
 
       // Temporary for https://crbug.com/612711.
       {"aci_wrong_sp_extension_id", kSmallSize},
 
       // Temporary for http://crbug.com/621730
       {"postmessage_src_origin", kMediumSize},
       {"postmessage_dst_origin", kMediumSize},
       {"postmessage_dst_url", kLargeSize},
       {"postmessage_script_info", kLargeSize},
 
-      // Temporary for https://crbug.com/616149.
-      {"existing_extension_pref_value_type", crash_keys::kSmallSize},
-
       // Temporary for https://crbug.com/668633.
       {"swdh_set_hosted_version_worker_pid", crash_keys::kSmallSize},
       {"swdh_set_hosted_version_host_pid", crash_keys::kSmallSize},
       {"swdh_set_hosted_version_is_new_process", crash_keys::kSmallSize},
       {"swdh_set_hosted_version_restart_count", crash_keys::kSmallSize},
 
       // Temporary for https://crbug.com/688425
       {"navigation_controller_impl_renderer_did_navigate",
        crash_keys::kLargeSize},
   };
@@ skipping 197 matching lines @@
 bool ChromeCrashReporterClient::GetCollectStatsInSample() {
   return install_static::GetCollectStatsInSample();
 }
 
 bool ChromeCrashReporterClient::EnableBreakpadForProcess(
     const std::string& process_type) {
   // This is not used by Crashpad (at least on Windows).
   NOTREACHED();
   return true;
 }