Refactor extension event distribution to use Values instead of JSON strings.

chrome/browser/extensions/extension_processes_api.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_EXTENSIONS_EXTENSION_PROCESSES_API_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESSES_API_H__
 #pragma once
 
 #include <set>
 #include <string>
 
 #include "chrome/browser/extensions/extension_function.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_widget_host.h"
 
+namespace base {
+class ListValue;
+}
+
 // Observes the Task Manager and routes the notifications as events to the
 // extension system.
 class ExtensionProcessesEventRouter : public TaskManagerModelObserver,
                                       public content::NotificationObserver {
  public:
   // Single instance of the event router.
   static ExtensionProcessesEventRouter* GetInstance();
 
   // Safe to call multiple times.
   void ObserveProfile(Profile* profile);
@@ skipping 29 matching lines @@
   virtual void OnItemsChanged(int start, int length) OVERRIDE;
   virtual void OnItemsRemoved(int start, int length) OVERRIDE {}
   virtual void OnItemsToBeRemoved(int start, int length) OVERRIDE;
 
   // Internal helpers for processing notifications.
   void ProcessHangEvent(content::RenderWidgetHost* widget);
   void ProcessClosedEvent(
       content::RenderProcessHost* rph,
       content::RenderProcessHost::RendererClosedDetails* details);
 
-  void NotifyProfiles(const char* event_name, std::string json_args);
+  void NotifyProfiles(const char* event_name, base::ListValue* event_args);
 
   void DispatchEvent(Profile* profile,
                      const char* event_name,
-                     const std::string& json_args);
+                     base::ListValue* event_args);
 
   // Determines whether there is a registered listener for the specified event.
   // It helps to avoid collecing data if no one is interested in it.
   bool HasEventListeners(std::string& event_name);
 
   // Used for tracking registrations to process related notifications.
   content::NotificationRegistrar registrar_;
 
   // Registered profiles.
   typedef std::set<Profile*> ProfileSet;
@@ skipping 83 matching lines @@
   content::NotificationRegistrar registrar_;
 
   // Member variables to store the function parameters
   std::vector<int> process_ids_;
   bool memory_;
 
   DECLARE_EXTENSION_FUNCTION_NAME("experimental.processes.getProcessInfo")
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PROCESSES_API_H__