[Extensions Bindings] Remove ScriptContext::DispatchEvent

chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc

Index: chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
diff --git a/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc b/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
index 1d49fb3659bb9cd51849901fd4d5e1fd55c36702..3cdee565cc9a4c8169f6f27a1e27bb76234506c6 100644
--- a/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
+++ b/chrome/renderer/extensions/chrome_extensions_dispatcher_delegate.cc
@@ -96,6 +96,7 @@ void ChromeExtensionsDispatcherDelegate::InitOriginPermissions(
 void ChromeExtensionsDispatcherDelegate::RegisterNativeHandlers(
     extensions::Dispatcher* dispatcher,
     extensions::ModuleSystem* module_system,
+    extensions::ExtensionBindingsSystem* bindings_system,
     extensions::ScriptContext* context) {
   module_system->RegisterNativeHandler(
       "app", std::unique_ptr<NativeHandler>(
@@ -135,13 +136,13 @@ void ChromeExtensionsDispatcherDelegate::RegisterNativeHandlers(
 #if BUILDFLAG(ENABLE_WEBRTC)
   module_system->RegisterNativeHandler(
       "cast_streaming_natives",
-      std::unique_ptr<NativeHandler>(
-          new extensions::CastStreamingNativeHandler(context)));
+      base::MakeUnique<extensions::CastStreamingNativeHandler>(
+          context, bindings_system));
 #endif
   module_system->RegisterNativeHandler(
       "automationInternal",
-      std::unique_ptr<NativeHandler>(
-          new extensions::AutomationInternalCustomBindings(context)));
+      base::MakeUnique<extensions::AutomationInternalCustomBindings>(
+          context, bindings_system));
 
   // The following are native handlers that are defined in //extensions, but
   // are only used for APIs defined in Chrome.