Fixes for re-enabling more MSVC level 4 warnings: content/browser/ edition

content/browser/service_worker/service_worker_internals_ui.cc

Index: content/browser/service_worker/service_worker_internals_ui.cc
diff --git a/content/browser/service_worker/service_worker_internals_ui.cc b/content/browser/service_worker/service_worker_internals_ui.cc
index 8f59ea5a2994d720173bfefba81c3b9e5048555c..d4bc81a09a9b0616a3a19df11343f051c51f5834 100644
--- a/content/browser/service_worker/service_worker_internals_ui.cc
+++ b/content/browser/service_worker/service_worker_internals_ui.cc
@@ -560,11 +560,11 @@ void ServiceWorkerInternalsUI::CallServiceWorkerVersionMethod(
     const ListValue* args) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   int callback_id;
-  int partition_id;
-  int64 version_id;
-  std::string version_id_string;
   const DictionaryValue* cmd_args = NULL;
+  int partition_id;
   scoped_refptr<ServiceWorkerContextWrapper> context;
+  std::string version_id_string;
+  int64 version_id = 0;
   if (!args->GetInteger(0, &callback_id) ||
       !args->GetDictionary(1, &cmd_args) ||
       !cmd_args->GetInteger("partition_id", &partition_id) ||
@@ -585,7 +585,7 @@ void ServiceWorkerInternalsUI::DispatchPushEvent(
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   int callback_id;
   int partition_id;
-  int64 version_id;
+  int64 version_id = 0;
   std::string version_id_string;
   const DictionaryValue* cmd_args = NULL;
   scoped_refptr<ServiceWorkerContextWrapper> context;
@@ -606,10 +606,9 @@ void ServiceWorkerInternalsUI::DispatchPushEvent(
 void ServiceWorkerInternalsUI::InspectWorker(const ListValue* args) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   int callback_id;
-  int process_id;
-  int devtools_agent_route_id;
   const DictionaryValue* cmd_args = NULL;
-  scoped_refptr<ServiceWorkerContextWrapper> context;
+  int process_id = 0;
+  int devtools_agent_route_id = 0;
   if (!args->GetInteger(0, &callback_id) ||
       !args->GetDictionary(1, &cmd_args) ||
       !cmd_args->GetInteger("process_id", &process_id) ||