Scrub the vestigal breakpad crash dump attempts metrics code.

chrome/installer/setup/installer_crash_reporter_client.cc

 // Copyright 2015 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/installer/setup/installer_crash_reporter_client.h"
 
 #include "base/debug/crash_logging.h"
 #include "base/environment.h"
 #include "base/file_version_info.h"
 #include "base/path_service.h"
@@ skipping 77 matching lines @@
   // Use large dumps for all but the stable channel.
   return !channel.empty();
 }
 
 int InstallerCrashReporterClient::GetResultCodeRespawnFailed() {
   // The restart dialog is never shown for the installer.
   NOTREACHED();
   return 0;
 }
 
-void InstallerCrashReporterClient::InitBrowserCrashDumpsRegKey() {
-  // The installer does not track dump attempts and results in the registry.
-}
-
 void InstallerCrashReporterClient::RecordCrashDumpAttempt(bool is_real_crash) {
   // The installer does not track dump attempts and results in the registry.
 }
 
 void InstallerCrashReporterClient::RecordCrashDumpAttemptResult(
     bool is_real_crash,
     bool succeeded) {
   // The installer does not track dump attempts and results in the registry.
 }
 
@@ skipping 49 matching lines @@
     }
   }
 
   return false;
 }
 
 bool InstallerCrashReporterClient::EnableBreakpadForProcess(
     const std::string& process_type) {
   return true;
 }