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

chrome/test/chromedriver/chrome/chrome.h

Index: chrome/test/chromedriver/chrome/chrome.h
diff --git a/chrome/test/chromedriver/chrome/chrome.h b/chrome/test/chromedriver/chrome/chrome.h
index 85ac7fa0c6d8d8029ede9e1490afb10e9fb35fb7..1e64cdf29dd932ff58b9e4cfd46770625f8d4c24 100644
--- a/chrome/test/chromedriver/chrome/chrome.h
+++ b/chrome/test/chromedriver/chrome/chrome.h
@@ -17,8 +17,11 @@ class Chrome {
 
   virtual std::string GetVersion() = 0;
 
-  // Return a list of opened WebViews.
-  virtual Status GetWebViews(std::list<WebView*>* web_views) = 0;
+  // Return ids of opened WebViews in the same order as they are opened.
+  virtual Status GetWebViewIds(std::list<std::string>* web_view_ids) = 0;
+
+  // Return the WebView for the given id.
+  virtual Status GetWebViewById(const std::string& id, WebView** web_view) = 0;
 
   // Returns whether a JavaScript dialog is open.
   virtual Status IsJavaScriptDialogOpen(bool* is_open) = 0;