Convert ChromeDriver to use only the JSON automation interface.

chrome/browser/automation/automation_provider_observers.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #define CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 1122 matching lines @@
 
   void RunOnProcessLauncherThread();
   void RunOnUIThread();
 
   base::WeakPtr<AutomationProvider> automation_;
   scoped_ptr<IPC::Message> reply_message_;
 
   DISALLOW_COPY_AND_ASSIGN(WaitForProcessLauncherThreadToGoIdleObserver);
 };
 
+// Observes the result of execution of Javascript and sends a JSON reply.
+class ExecuteJavascriptObserver : public DomOperationObserver {
+ public:
+  ExecuteJavascriptObserver(AutomationProvider* automation,
+                            IPC::Message* reply_message);
+  virtual ~ExecuteJavascriptObserver();
+
+ private:
+  // Overriden from DomOperationObserver.
+  virtual void OnDomOperationCompleted(const std::string& json);
+
+  base::WeakPtr<AutomationProvider> automation_;
+  scoped_ptr<IPC::Message> reply_message_;
+
+  DISALLOW_COPY_AND_ASSIGN(ExecuteJavascriptObserver);
+};
+
+
 #endif  // CHROME_BROWSER_AUTOMATION_AUTOMATION_PROVIDER_OBSERVERS_H_