Switch to TaintPreservingCallable and add test cases

java/ql/test/experimental/query-tests/security/CWE-749/UnsafeActivity2.java

@@ -0,0 +1,34 @@
+package com.example.app;
+
+import android.app.Activity;
+
+import android.os.Bundle;
+
+import android.webkit.WebSettings;
+import android.webkit.WebView;
+import android.webkit.WebViewClient;
+
+public class UnsafeActivity2 extends Activity {
+	//Test onCreate with both JavaScript and cross-origin resource access enabled while taking remote user inputs from bundle extras
+	public void onCreate(Bundle savedInstanceState) {
+		super.onCreate(savedInstanceState);
+		setContentView(-1);
+
+		WebView wv = (WebView) findViewById(-1);
+		WebSettings webSettings = wv.getSettings();
+
+		webSettings.setJavaScriptEnabled(true);
+		webSettings.setAllowFileAccessFromFileURLs(true);
+
+		wv.setWebViewClient(new WebViewClient() {
+			@Override
+			public boolean shouldOverrideUrlLoading(WebView view, String url) {
+				view.loadUrl(url);
+				return true;
+			}
+		});
+
+		String thisUrl = getIntent().getExtras().getString("url");
+		wv.loadUrl(thisUrl);
+	}
+}