Browser Plugin: Implement ExecuteScript

chrome/browser/browser_plugin/chrome_browser_plugin_guest_observer.h

+// Copyright (c) 2012 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_BROWSER_PLUGIN_CHROME_BROWSER_PLUGIN_GUEST_OBSERVER_H_
+#define CHROME_BROWSER_BROWSER_PLUGIN_CHROME_BROWSER_PLUGIN_GUEST_OBSERVER_H_
+
+#include "content/public/browser/browser_plugin/browser_plugin_guest_observer.h"
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
+#include "chrome/browser/extensions/script_executor.h"
+
+namespace base {
+class ListValue;
+}  // namespace base
+
+namespace extensions {
+class Extension;
+}  // namespace extensions
+
+class ChromeBrowserPluginGuestObserver
+    : public content::BrowserPluginGuestObserver,
+      public base::RefCounted<ChromeBrowserPluginGuestObserver>  {
+ public:
+  explicit ChromeBrowserPluginGuestObserver(content::BrowserPluginGuest* guest);
+
+  virtual bool OnMessageReceivedFromEmbedder(
+      const IPC::Message& message) OVERRIDE;
+
+ private:
+  friend class base::RefCounted<ChromeBrowserPluginGuestObserver>;
+
+  virtual ~ChromeBrowserPluginGuestObserver();
+
+  virtual void OnDestruct() OVERRIDE;
+
+  // Message handlers.
+  void OnExecuteScript(int instance_id,
+                       int request_id,
+                       const base::ListValue& list);
+  void OnExecuteCodeFinished(int request_id,
+                             const std::string& error,
+                             int32 on_page_id,
+                             const GURL& on_url,
+                             const base::ListValue& script_result);
+
+  ObserverList<extensions::TabHelper::ScriptExecutionObserver>
+      script_observers_;
+  scoped_ptr<extensions::ScriptExecutor> script_executor_;
+  scoped_refptr<extensions::Extension> extension_;
+
+  DISALLOW_COPY_AND_ASSIGN(ChromeBrowserPluginGuestObserver);
+};
+
+#endif  // CHROME_BROWSER_BROWSER_PLUGIN_CHROME_BROWSER_PLUGIN_GUEST_OBSERVER_H_