Use V8 Maybe APIs in extensions/renderer

extensions/renderer/v8_schema_registry.cc

Index: extensions/renderer/v8_schema_registry.cc
diff --git a/extensions/renderer/v8_schema_registry.cc b/extensions/renderer/v8_schema_registry.cc
index 65b1bed5d404877b611c529d19d837ca34f78eeb..3be5ac10a5c1138ba80cb383dc13016d034293b7 100644
--- a/extensions/renderer/v8_schema_registry.cc
+++ b/extensions/renderer/v8_schema_registry.cc
@@ -10,6 +10,7 @@
 #include "extensions/common/extension_api.h"
 #include "extensions/renderer/object_backed_native_handler.h"
 #include "extensions/renderer/script_context.h"
+#include "extensions/renderer/v8_maybe_helpers.h"
 
 using content::V8ValueConverter;
 
@@ -65,14 +66,15 @@ v8::Local<v8::Array> V8SchemaRegistry::GetSchemas(
     const std::vector<std::string>& apis) {
   v8::Isolate* isolate = v8::Isolate::GetCurrent();
   v8::EscapableHandleScope handle_scope(isolate);
-  v8::Context::Scope context_scope(GetOrCreateContext(isolate));
+  v8::Local<v8::Context> context = GetOrCreateContext(isolate);
+  v8::Context::Scope context_scope(context);
 
   v8::Local<v8::Array> v8_apis(v8::Array::New(isolate, apis.size()));
   size_t api_index = 0;
   for (std::vector<std::string>::const_iterator i = apis.begin();
        i != apis.end();
        ++i) {
-    v8_apis->Set(api_index++, GetSchema(*i));
+    SetProperty(context, v8_apis, api_index++, GetSchema(*i));
   }
   return handle_scope.Escape(v8_apis);
 }