Android: Remove GetApplicationContext part 2

chrome/test/android/javatests/src/org/chromium/chrome/test/util/parameters/AddFakeAccountToAppParameter.java

 // 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.
 
 package org.chromium.chrome.test.util.parameters;
 
 import android.app.Instrumentation;
 
 import org.chromium.base.ThreadUtils;
 import org.chromium.base.test.util.parameter.BaseParameter;
@@ skipping 22 matching lines @@
 
     public AddFakeAccountToAppParameter(Parameter.Reader parameterReader,
             Instrumentation instrumentation) {
         super(PARAMETER_TAG, parameterReader);
         ThreadUtils.runOnUiThreadBlocking(new Runnable() {
             @Override
             public void run() {
                 ProcessInitializationHandler.getInstance().initializePreNative();
             }
         });
-        mSigninController = ChromeSigninController.get(instrumentation.getTargetContext());
+        mSigninController = ChromeSigninController.get();
         mSigninUtil = new ChromeSigninUtils(instrumentation);
     }
 
     @Override
     public void setUp() {
         String username = getStringArgument(ARGUMENT.USERNAME, ARGUMENT.DEFAULT.USERNAME);
 
         mSigninController.setSignedInAccountName(null);
         mSigninUtil.addAccountToApp(username);
     }
 
     @Override
     public void tearDown() {
         mSigninController.setSignedInAccountName(null);
     }
 
     /**
      * Only affects Java tests.
      *
      * @return {@code true} if an account is on the app, {@code false} otherwise.
      */
     public boolean isSignedIn() {
         return mSigninController.isSignedIn();
     }
 }