[chromedriver] Fix 3 bugs about web view, window handle and target window.

chrome/test/chromedriver/chrome/stub_chrome.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/test/chromedriver/chrome/stub_chrome.h"
 #include "chrome/test/chromedriver/chrome/status.h"
 #include "chrome/test/chromedriver/chrome/web_view.h"
 
 StubChrome::StubChrome() {}
 
 StubChrome::~StubChrome() {}
 
 std::string StubChrome::GetVersion() {
   return "";
 }
 
-Status StubChrome::GetWebViews(std::list<WebView*>* web_views) {
+Status StubChrome::GetWebViewIds(std::list<std::string>* web_view_ids) {
   return Status(kOk);
 }
 
+Status StubChrome::GetWebViewById(const std::string& id, WebView** web_view) {
+  return Status(kOk);
+}
+
 Status StubChrome::IsJavaScriptDialogOpen(bool* is_open) {
   return Status(kOk);
 }
 
 Status StubChrome::GetJavaScriptDialogMessage(std::string* message) {
   return Status(kOk);
 }
 
 Status StubChrome::HandleJavaScriptDialog(
     bool accept,
     const std::string& prompt_text) {
   return Status(kOk);
 }
 
 std::string StubChrome::GetOperatingSystemName() {
   return "";
 }
 
 Status StubChrome::Quit() {
   return Status(kOk);
 }