[Chromecast] Don't override RegisterCrashKeys() on Android.

chromecast/app/android/cast_crash_reporter_client_android.cc

 // 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 "chromecast/app/android/cast_crash_reporter_client_android.h"
 
 #include "base/base_paths.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
@@ skipping 51 matching lines @@
   *crash_dir = crash_dir_local;
   return true;
 }
 
 bool CastCrashReporterClientAndroid::GetCrashDumpLocation(
     base::FilePath* crash_dir) {
   return CastCrashReporterClientAndroid::GetCrashDumpLocation(process_type_,
                                                               crash_dir);
 }
 
-size_t CastCrashReporterClientAndroid::RegisterCrashKeys() {
-  return crash_keys::RegisterCastCrashKeys();
-}
-
 bool CastCrashReporterClientAndroid::GetCollectStatsConsent() {
   return android::ChromecastConfigAndroid::GetInstance()->CanSendUsageStats();
 }
 
 int CastCrashReporterClientAndroid::GetAndroidMinidumpDescriptor() {
   return kAndroidMinidumpDescriptor;
 }
 
 bool CastCrashReporterClientAndroid::EnableBreakpadForProcess(
     const std::string& process_type) {
   return process_type == switches::kRendererProcess ||
          process_type == switches::kGpuProcess;
 }
 
 }  // namespace chromecast