Remove implicit conversions from scoped_refptr to T* in extensions/

extensions/shell/browser/shell_extension_system.cc

Index: extensions/shell/browser/shell_extension_system.cc
diff --git a/extensions/shell/browser/shell_extension_system.cc b/extensions/shell/browser/shell_extension_system.cc
index 47db358ba0c3091bcdf326224a2f96dc8998b233..f038807cf4a59274d0eb39a8d20fcbcb53840a44 100644
--- a/extensions/shell/browser/shell_extension_system.cc
+++ b/extensions/shell/browser/shell_extension_system.cc
@@ -47,7 +47,7 @@ bool ShellExtensionSystem::LoadApp(const base::FilePath& app_dir) {
   std::string load_error;
   extension_ = file_util::LoadExtension(
       app_dir, Manifest::COMMAND_LINE, load_flags, &load_error);
-  if (!extension_) {
+  if (!extension_.get()) {
     LOG(ERROR) << "Loading extension at " << app_dir.value()
                << " failed with: " << load_error;
     return false;
@@ -63,12 +63,12 @@ bool ShellExtensionSystem::LoadApp(const base::FilePath& app_dir) {
 
   ExtensionRegistry::Get(browser_context_)->AddEnabled(extension_);
 
-  RegisterExtensionWithRequestContexts(extension_);
+  RegisterExtensionWithRequestContexts(extension_.get());
 
   content::NotificationService::current()->Notify(
       extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
       content::Source<BrowserContext>(browser_context_),
-      content::Details<const Extension>(extension_));
+      content::Details<const Extension>(extension_.get()));
 
   // Inform the rest of the extensions system to start.
   ready_.Signal();
@@ -131,7 +131,7 @@ StateStore* ShellExtensionSystem::rules_store() {
 InfoMap* ShellExtensionSystem::info_map() {
   if (!info_map_.get())
     info_map_ = new InfoMap;
-  return info_map_;
+  return info_map_.get();
 }
 
 LazyBackgroundTaskQueue* ShellExtensionSystem::lazy_background_task_queue() {