Add delayloads config for vr_common_unittests.

Newly added static lib dependencies prevent the unittests from loading
on non-desktop Windows skus such as Hololens. The delayloads allow this
to succeed.

Bug: 1045092
Change-Id: Icc9d24ff0a3b4e31895574f6ecac2b5b761aa185
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2016664Reviewed-by: Alexander Cooper <alcooper@chromium.org>
Commit-Queue: Cliff Smolinsky <cliffsmo@microsoft.com>
Cr-Commit-Position: refs/heads/master@{#734709}

chrome/browser/vr/BUILD.gn

@@ -526,6 +526,11 @@ test("vr_common_unittests") {
       "//ui/android:ui_java",
     ]
   }
+  if (is_win) {
+    configs += [
+      "//build/config/win:delayloads",
+    ]
+  }
 }
 
 test("vr_pixeltests") {