[WebView] Reorganize all of the WebView Shell apks into their own dir.

android_webview/tools/WebViewShell/src/org/chromium/webview_shell/JankActivity.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.content.Intent;
-import android.os.Bundle;
-import android.webkit.CookieManager;
-import android.webkit.WebView;
-import android.webkit.WebViewClient;
-
-/**
- * This activity is designed for Android Jank testing of WebView. It takes a URL as an argument, and
- * displays the page ready for the Jank tester to test scrolling etc.
- */
-public class JankActivity extends Activity {
-
-    @Override
-    public void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        getWindow().setTitle(
-                getResources().getString(R.string.title_activity_jank));
-        setContentView(R.layout.activity_webview);
-
-        WebView webView = (WebView) findViewById(R.id.webview);
-        CookieManager.setAcceptFileSchemeCookies(true);
-
-        webView.setWebViewClient(new WebViewClient() {
-            @Override
-            public boolean shouldOverrideUrlLoading(WebView webView, String url) {
-                return false;
-            }
-        });
-
-        String url = getUrlFromIntent(getIntent());
-        webView.loadUrl(url);
-    }
-
-    private static String getUrlFromIntent(Intent intent) {
-        return intent != null ? intent.getDataString() : null;
-    }
-
-}