Enable UMA reporting for crashpad_handler on macOS

chrome/app/chrome_crash_reporter_client_mac.mm

 // 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.
 
 #include "chrome/app/chrome_crash_reporter_client.h"
 
 #include <CoreFoundation/CoreFoundation.h>
 
 #include "base/mac/scoped_cftyperef.h"
+#include "base/path_service.h"
 #include "base/strings/sys_string_conversions.h"
+#include "chrome/common/chrome_paths.h"
 #include "components/policy/policy_constants.h"
 
 #if !defined(DISABLE_NACL)
 #include "base/command_line.h"
 #include "chrome/common/chrome_switches.h"
 #include "components/nacl/common/nacl_switches.h"
 #include "native_client/src/trusted/service_runtime/osx/crash_filter.h"
 #endif
 
+bool ChromeCrashReporterClient::GetCrashMetricsLocation(
+    base::FilePath* metrics_dir) {
+#if defined(GOOGLE_CHROME_BUILD)

[scottmg, 2017/01/05 22:41:40]

The #if feels like unnecessary clutter here.

+  return PathService::Get(chrome::DIR_USER_DATA, metrics_dir);
+#else
+  return false;
+#endif
+}
+
 bool ChromeCrashReporterClient::ReportingIsEnforcedByPolicy(
     bool* breakpad_enabled) {
   base::ScopedCFTypeRef<CFStringRef> key(
       base::SysUTF8ToCFStringRef(policy::key::kMetricsReportingEnabled));
   Boolean key_valid;
   Boolean metrics_reporting_enabled = CFPreferencesGetAppBooleanValue(key,
       kCFPreferencesCurrentApplication, &key_valid);
   if (key_valid &&
       CFPreferencesAppValueIsForced(key, kCFPreferencesCurrentApplication)) {
     *breakpad_enabled = metrics_reporting_enabled;
     return true;
   }
   return false;
 }