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

chrome/browser/extensions/extension_event_router_forwarder.cc

Index: chrome/browser/extensions/extension_event_router_forwarder.cc
diff --git a/chrome/browser/extensions/extension_event_router_forwarder.cc b/chrome/browser/extensions/extension_event_router_forwarder.cc
index f654d1299bdf091b0138dde2c76c5dd0495cef9e..f0c34d932f06fc0edae760fc70f2112e6fa1da30 100644
--- a/chrome/browser/extensions/extension_event_router_forwarder.cc
+++ b/chrome/browser/extensions/extension_event_router_forwarder.cc
@@ -1,10 +1,11 @@
-// 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.
 
 #include "chrome/browser/extensions/extension_event_router_forwarder.h"
 
 #include "base/bind.h"
+#include "base/values.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/extension_event_router.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ -20,14 +21,14 @@ ExtensionEventRouterForwarder::~ExtensionEventRouterForwarder() {
 
 void ExtensionEventRouterForwarder::BroadcastEventToRenderers(
     const std::string& event_name,
-    const std::string& event_args,
+    base::ListValue* event_args,
     const GURL& event_url) {
   HandleEvent("", event_name, event_args, 0, true, event_url);
 }
 
 void ExtensionEventRouterForwarder::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) {
@@ -40,7 +41,7 @@ void ExtensionEventRouterForwarder::DispatchEventToRenderers(
 void ExtensionEventRouterForwarder::BroadcastEventToExtension(
     const std::string& extension_id,
     const std::string& event_name,
-    const std::string& event_args,
+    base::ListValue* event_args,
     const GURL& event_url) {
   HandleEvent(extension_id, event_name, event_args, 0, true, event_url);
 }
@@ -48,7 +49,7 @@ void ExtensionEventRouterForwarder::BroadcastEventToExtension(
 void ExtensionEventRouterForwarder::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) {
@@ -61,7 +62,7 @@ void ExtensionEventRouterForwarder::DispatchEventToExtension(
 void ExtensionEventRouterForwarder::HandleEvent(
     const std::string& extension_id,
     const std::string& event_name,
-    const std::string& event_args,
+    base::ListValue* event_args,
     void* profile_ptr,
     bool use_profile_to_restrict_events,
     const GURL& event_url) {
@@ -102,7 +103,7 @@ void ExtensionEventRouterForwarder::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) {
   // We may not have an extension in cases like chromeos login