Convert Provider tests to JUnit4

chrome/android/javatests/src/org/chromium/chrome/browser/provider/ProviderTestBase.java

-// Copyright 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.
-
-package org.chromium.chrome.browser.provider;
-
-import android.content.ContentProvider;
-import android.content.ContentResolver;
-import android.content.pm.ProviderInfo;
-import android.test.IsolatedContext;
-import android.test.mock.MockContentResolver;
-
-import org.chromium.base.ThreadUtils;
-import org.chromium.chrome.browser.ChromeActivity;
-import org.chromium.chrome.test.ChromeActivityTestCaseBase;
-
-/**
- * Base class for Chrome's ContentProvider tests.
- * Sets up a local ChromeBrowserProvider associated to a mock resolver in an isolated context.
- */
-public class ProviderTestBase extends ChromeActivityTestCaseBase<ChromeActivity> {
-
-    private IsolatedContext mContext;
-
-    public ProviderTestBase() {
-        super(ChromeActivity.class);
-    }
-
-    @Override
-    public void startMainActivity() throws InterruptedException {
-        startMainActivityOnBlankPage();
-    }
-
-    @Override
-    protected void setUp() throws Exception {
-        super.setUp();
-
-        final ChromeActivity activity = getActivity();
-        assertNotNull(activity);
-
-        final ContentProvider provider = new ChromeBrowserProvider();
-        ThreadUtils.runOnUiThreadBlocking(new Runnable() {
-            @Override
-            public void run() {
-                ProviderInfo providerInfo = new ProviderInfo();
-                providerInfo.authority = ChromeBrowserProvider.getApiAuthority(activity);
-                provider.attachInfo(activity, providerInfo);
-            }
-        });
-
-        MockContentResolver resolver = new MockContentResolver();
-        resolver.addProvider(ChromeBrowserProvider.getApiAuthority(activity), provider);
-
-        mContext = new IsolatedContext(resolver, activity);
-        assertTrue(getContentResolver() instanceof MockContentResolver);
-    }
-
-    protected ContentResolver getContentResolver() {
-        return mContext.getContentResolver();
-    }
-}