Add "delayimp.lib" linking to fix unresolved external symbol __delayLoadHelper2 issue

The CL:

https://dawn-review.googlesource.com/c/dawn/+/186820 (Add delayloads config to dawn_native component)

added delayed loading of user32.dll. This appears to be blocking the Dawn roll into Skia with the error:

error LNK2001: unresolved external symbol __delayLoadHelper2

on the Build-Win-MSVC-x86_64-Debug-Graphite_Dawn_D3D12 bot (https://skia-review.googlesource.com/c/skia/+/848904).

This CL seems to fix the link error locally on my machine.

Change-Id: I562b6fb55c6b6dc2328e238ff41fa05c2da1df89
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/186921
Reviewed-by: Brandon Jones <bajones@chromium.org>
Commit-Queue: Robert Phillips <robertphillips@google.com>
diff --git a/src/dawn/native/BUILD.gn b/src/dawn/native/BUILD.gn
index 54c0cde..efc266a 100644
--- a/src/dawn/native/BUILD.gn
+++ b/src/dawn/native/BUILD.gn
@@ -419,7 +419,10 @@
   # Only win32 app needs to link with user32.lib
   # In UWP, all availiable APIs are defined in WindowsApp.lib
   if (is_win && !dawn_is_winuwp) {
-    libs += [ "user32.lib" ]
+    libs += [
+      "user32.lib",
+      "delayimp.lib",
+    ]
     public_configs = [ ":win_delayload" ]
   }