Convert WebView Layout test to JUnit4

android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTestRunner.java

Index: android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTestRunner.java
diff --git a/android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTestRunner.java b/android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTestRunner.java
deleted file mode 100644
index f415413bd5a6c894f3bc2e1a06aa6e42d6e73b04..0000000000000000000000000000000000000000
--- a/android_webview/tools/system_webview_shell/layout_tests/src/org/chromium/webview_shell/test/WebViewLayoutTestRunner.java
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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.webview_shell.test;
-
-import android.os.Bundle;
-
-import org.chromium.base.test.BaseInstrumentationTestRunner;
-
-/**
- * Customized test runner for running instrumentation tests in WebViewBrowserTests.
- */
-public class WebViewLayoutTestRunner extends BaseInstrumentationTestRunner {
-    private String mModeArgument;
-    private static final String MODE_REBASELINE = "rebaseline";
-
-    @Override
-    public void onCreate(Bundle arguments) {
-        super.onCreate(arguments);
-        if (arguments != null) {
-            mModeArgument = arguments.getString("mode");
-        }
-    }
-
-    public boolean isRebaseline() {
-        return mModeArgument != null ? mModeArgument.equals(MODE_REBASELINE) : false;
-    }
-}