[Android] Replace a synchronous callsite of GetAccounts()

chrome/browser/android/chrome_jni_registrar.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/android/chrome_jni_registrar.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_registrar.h"
 #include "base/trace_event/trace_event.h"
 #include "chrome/browser/after_startup_task_utils_android.h"
@@ skipping 161 matching lines @@
      navigation_interception::RegisterNavigationInterceptionJni},
     {"Policy", policy::android::RegisterPolicy},
     {"SafeJson", safe_json::android::RegisterSafeJsonJni},
     {"Signin", signin::android::RegisterSigninJni},
     {"WebContentsDelegateAndroid",
      web_contents_delegate_android::RegisterWebContentsDelegateAndroidJni},
     // Register JNI for chrome classes.
     {"AccessibilityUtils", AccessibilityUtil::Register},
     {"AccountChooserDialogAndroid", RegisterAccountChooserDialogAndroid},
     {"AccountManagementScreenHelper", AccountManagementScreenHelper::Register},
-    {"AccountTrackerService", AccountTrackerServiceAndroid::Register},
+    {"AccountTrackerService", signin::android::RegisterAccountTrackerService},
     {"AddToHomescreenDialogHelper",
      AddToHomescreenDialogHelper::RegisterAddToHomescreenDialogHelper},
     {"AfterStartupTaskUtils", RegisterAfterStartupTaskUtilsJNI},
     {"AnswersImageBridge", RegisterAnswersImageBridge},
     {"AppBannerInfoBarAndroid", RegisterAppBannerInfoBarAndroid},
     {"AppBannerInfoBarDelegateAndroid",
      banners::RegisterAppBannerInfoBarDelegateAndroid},
     {"AppBannerManagerAndroid", banners::AppBannerManagerAndroid::Register},
     {"ApplicationLifetime", RegisterApplicationLifetimeAndroid},
     {"AutocompleteControllerAndroid", RegisterAutocompleteControllerAndroid},
@@ skipping 156 matching lines @@
 };
 
 bool RegisterBrowserJNI(JNIEnv* env) {
   TRACE_EVENT0("startup", "chrome_android::RegisterJni");
   return RegisterNativeMethods(env, kChromeRegisteredMethods,
                                arraysize(kChromeRegisteredMethods));
 }
 
 }  // namespace android
 }  // namespace chrome