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

chrome/browser/extensions/extension_event_router_forwarder.h

Index: chrome/browser/extensions/extension_event_router_forwarder.h
diff --git a/chrome/browser/extensions/extension_event_router_forwarder.h b/chrome/browser/extensions/extension_event_router_forwarder.h
index 390c8578a7844fc761546770e2f025c31453d556..066dcc475d8bc05cd15001adb8908b53f331d7e7 100644
--- a/chrome/browser/extensions/extension_event_router_forwarder.h
+++ b/chrome/browser/extensions/extension_event_router_forwarder.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -10,6 +10,7 @@
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
+#include "base/values.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
 
@@ -34,7 +35,7 @@ class ExtensionEventRouterForwarder
   // on all (original) profiles' ExtensionEventRouters.
   // May be called on any thread.
   void BroadcastEventToRenderers(const std::string& event_name,
-                                 const std::string& event_args,
+                                 base::ListValue* event_args,
                                  const GURL& event_url);
 
   // Calls
@@ -44,7 +45,7 @@ class ExtensionEventRouterForwarder
   // May be called on any thread.
   void BroadcastEventToExtension(const std::string& extension_id,
                                  const std::string& event_name,
-                                 const std::string& event_args,
+                                 base::ListValue* event_args,
                                  const GURL& event_url);
 
   // Calls
@@ -52,7 +53,7 @@ class ExtensionEventRouterForwarder
   //       use_profile_to_restrict_events ? profile : NULL, event_url)
   // on |profile|'s ExtensionEventRouter. May be called on any thread.
   void DispatchEventToRenderers(const std::string& event_name,
-                                const std::string& event_args,
+                                base::ListValue* event_args,
                                 void* profile,
                                 bool use_profile_to_restrict_events,
                                 const GURL& event_url);
@@ -63,7 +64,7 @@ class ExtensionEventRouterForwarder
   // on |profile|'s ExtensionEventRouter. May be called on any thread.
   void DispatchEventToExtension(const std::string& extension_id,
                                 const std::string& event_name,
-                                const std::string& event_args,
+                                base::ListValue* event_args,
                                 void* profile,
                                 bool use_profile_to_restrict_events,
                                 const GURL& event_url);
@@ -76,7 +77,7 @@ class ExtensionEventRouterForwarder
   // Virtual for testing.
   virtual void HandleEvent(const std::string& extension_id,
                            const std::string& event_name,
-                           const std::string& event_args,
+                           base::ListValue* event_args,
                            void* profile,
                            bool use_profile_to_restrict_events,
                            const GURL& event_url);
@@ -88,7 +89,7 @@ class ExtensionEventRouterForwarder
   virtual void CallExtensionEventRouter(Profile* profile,
                                         const std::string& extension_id,
                                         const std::string& event_name,
-                                        const std::string& event_args,
+                                        base::ListValue* event_args,
                                         Profile* restrict_to_profile,
                                         const GURL& event_url);