Refactor and add special test runner to support Espresso tests

android_webview/tools/automated_ui_tests/java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java

Index: android_webview/tools/automated_ui_tests/java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java
diff --git a/android_webview/tools/automated_ui_tests/java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java b/android_webview/tools/automated_ui_tests/java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java
deleted file mode 100644
index a8f8b5361e67f2200bca4636508ab1ac28848ba8..0000000000000000000000000000000000000000
--- a/android_webview/tools/automated_ui_tests/java/src/org/chromium/webview_ui_test/WebViewUiTestActivity.java
+++ /dev/null
@@ -1,41 +0,0 @@
-// 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.webview_ui_test;
-
-import android.app.Activity;
-import android.content.Intent;
-import android.os.Bundle;
-
-import org.chromium.base.Log;
-
-/**
- * Android app that uses WebView for UI Testing.
- */
-public class WebViewUiTestActivity extends Activity {
-
-    private static final String TAG = "WebViewUiTest";
-
-    public static final String EXTRA_TEST_LAYOUT_FILE =
-            "org.chromium.webview_ui_app.WebViewUiTestActivity.LayoutFile";
-
-    private String mLayout;
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-
-        parseArgumentsFromIntent(getIntent());
-        if (mLayout != null) {
-            setContentView(getResources().getIdentifier(
-                    mLayout, "layout", getPackageName()));
-        } else {
-            Log.e(TAG, "Must specify activity layout via intent argument.");
-        }
-    }
-
-    private void parseArgumentsFromIntent(Intent intent) {
-        mLayout = intent.getStringExtra(EXTRA_TEST_LAYOUT_FILE);
-    }
-}