Convert utility process extension ParseUpdate IPC to mojo

extensions/utility/utility_handler.h

Index: extensions/utility/utility_handler.h
diff --git a/extensions/utility/utility_handler.h b/extensions/utility/utility_handler.h
index 2378dcd3e8815689a326141cf8cdd4cc30d474bc..dac0b62fc52d3f75fb79312e3701a4da67003b8e 100644
--- a/extensions/utility/utility_handler.h
+++ b/extensions/utility/utility_handler.h
@@ -5,39 +5,19 @@
 #ifndef EXTENSIONS_UTILITY_UTILITY_HANDLER_H_
 #define EXTENSIONS_UTILITY_UTILITY_HANDLER_H_
 
-#include <string>
-
-#include "base/macros.h"
-
-namespace IPC {
-class Message;
-}
-
 namespace service_manager {
 class InterfaceRegistry;
 }
 
 namespace extensions {
 
-// A handler for extensions-related IPC from within utility processes.
-class UtilityHandler {
- public:
-  UtilityHandler();
-  ~UtilityHandler();
-
+// Handler for extensions-related utility process services.
+struct UtilityHandler {
   static void UtilityThreadStarted();
 
   static void ExposeInterfacesToBrowser(
       service_manager::InterfaceRegistry* registry,
       bool running_elevated);
-
-  bool OnMessageReceived(const IPC::Message& message);
-
- private:
-  // IPC message handlers.
-  void OnParseUpdateManifest(const std::string& xml);
-
-  DISALLOW_COPY_AND_ASSIGN(UtilityHandler);
 };
 
 }  // namespace extensions