Enable NeedsBraces check and fix some checkstyle issues.

android_webview/javatests/src/org/chromium/android_webview/test/ArchiveTest.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.android_webview.test;
 
 import android.os.Build;
 import android.test.suitebuilder.annotation.SmallTest;
 import android.webkit.ValueCallback;
 
@@ skipping 26 matching lines @@
     private AwTestContainerView mTestContainerView;
 
     @Override
     protected void setUp() throws Exception {
         super.setUp();
         mTestContainerView = createAwTestContainerViewOnMainSync(mContentsClient);
     }
 
     private void deleteFile(String path) {
         File file = new File(path);
-        if (file.exists())
-            assertTrue(file.delete());
+        if (file.exists()) assertTrue(file.delete());
         assertFalse(file.exists());
     }
 
     private void doArchiveTest(final AwContents contents, final String path,
             final boolean autoName, String expectedPath) throws InterruptedException {
         if (expectedPath != null) {
             deleteFile(expectedPath);
         }
 
         // Set up a handler to handle the completion callback
@@ skipping 83 matching lines @@
         final String path = new File("/foo/bar/").getAbsolutePath();
         deleteFile(path);
 
         loadUrlSync(mTestContainerView.getAwContents(),
                 mContentsClient.getOnPageFinishedHelper(), TEST_PAGE);
 
         doArchiveTest(mTestContainerView.getAwContents(), path, true, null);
     }
 
 }