Avoid still another memset in embedder tests

-- Take advantage of designated initializers

Change-Id: I0c06b2fb8950cf074418ad06f7dc815028d0ed57
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/129831
Reviewed-by: Thomas Sepez <tsepez@google.com>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
diff --git a/testing/embedder_test.cpp b/testing/embedder_test.cpp
index 8c0c3b1..7fef159 100644
--- a/testing/embedder_test.cpp
+++ b/testing/embedder_test.cpp
@@ -275,9 +275,10 @@
 
 void EmbedderTest::SetUp() {
   UNSUPPORT_INFO* info = static_cast<UNSUPPORT_INFO*>(this);
-  FXSYS_memset(info, 0, sizeof(UNSUPPORT_INFO));
-  info->version = 1;
-  info->FSDK_UnSupport_Handler = UnsupportedHandlerTrampoline;
+  *info = {
+      .version = 1,
+      .FSDK_UnSupport_Handler = UnsupportedHandlerTrampoline,
+  };
   FSDK_SetUnSpObjProcessHandler(info);
 }