Refactor android_webview_shell and its tests

android_webview/tools/WebViewShell/src/org/chromium/webview_shell/PageCyclerTestActivity.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.webview_shell;
+
+import android.app.Activity;
+import android.os.Bundle;
+import android.webkit.WebView;
+
+/**
+ * This activity is used for loading urls using webview on Appurify bots to make sure the
+ * webview doesn't crash.
+ */
+public class PageCyclerTestActivity extends Activity {
+
+    private WebView mWebView;
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_webview);
+        mWebView = (WebView) findViewById(R.id.webview);
+    }
+
+    public WebView getWebView() {
+        return mWebView;
+    }
+}