Reland "Android: Remove GetApplicationContext part 2"

chrome/android/java/src/org/chromium/chrome/browser/preferences/SyncedAccountPreference.java

 // Copyright 2016 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.
 
 package org.chromium.chrome.browser.preferences;
 
 import android.accounts.Account;
 import android.content.Context;
 import android.preference.ListPreference;
 import android.text.TextUtils;
@@ skipping 29 matching lines @@
     }
 
     private void updateAccountsList() {
         boolean syncEnabled = AndroidSyncSettings.isSyncEnabled(getContext());
         if (!syncEnabled) {
             setEnabled(false);
             // Don't return at this point, we still want the preference to display the currently
             // signed in account
         }
 
-        Account[] accounts = AccountManagerHelper.get(getContext()).getGoogleAccounts();
+        Account[] accounts = AccountManagerHelper.get().getGoogleAccounts();
         String[] accountNames = new String[accounts.length];
         String[] accountValues = new String[accounts.length];
 
-        String signedInAccountName =
-                ChromeSigninController.get(getContext()).getSignedInAccountName();
+        String signedInAccountName = ChromeSigninController.get().getSignedInAccountName();
         String signedInSettingsKey = "";
 
         for (int i = 0; i < accounts.length; ++i) {
             Account account = accounts[i];
             accountNames[i] = account.name;
             accountValues[i] = account.name;
             boolean isPrimaryAccount = TextUtils.equals(account.name, signedInAccountName);
             if (isPrimaryAccount) {
                 signedInSettingsKey = accountValues[i];
             }
         }
 
         setEntries(accountNames);
         setEntryValues(accountValues);
         setValue(signedInSettingsKey);
         setSummary(signedInAccountName);
     }
 
     @Override
     protected void onDialogClosed(boolean positiveResult) {
         super.onDialogClosed(positiveResult);
     }
 }