Enable "gn check" for //third_party/blink/renderer/modules/background_fetch

- Remove unnecessary #include for a testonly code from
  background_fetch_record.h.

This CL has no behavior changes.

Bug: 800764
Change-Id: I17b7946c08dca0aef888c5c95a436f984bd6b543
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2398605
Commit-Queue: Takuto Ikuta <tikuta@chromium.org>
Auto-Submit: Kent Tamura <tkent@chromium.org>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#805203}

.gn

@@ -252,7 +252,6 @@ no_check_targets = [
   "//third_party/blink/renderer/core/workers:*",  # 289 errors
   "//third_party/blink/renderer/core/xmlhttprequest:*",  # 49 errors
   "//third_party/blink/renderer/core:*",  # 823 errors
-  "//third_party/blink/renderer/modules/background_fetch:*",  # 4 errors
   "//third_party/blink/renderer/modules/cache_storage:*",  # 3 errors
   "//third_party/blink/renderer/modules/canvas:*",  # 1 error
   "//third_party/blink/renderer/modules/font_access:*",  # 3 errors

third_party/blink/renderer/modules/background_fetch/BUILD.gn

@@ -28,4 +28,8 @@ blink_modules_sources("background_fetch") {
   ]
 
   public_deps = [ "//third_party/blink/renderer/modules/service_worker" ]
+  deps = [
+    "//third_party/blink/renderer/modules/cache_storage:cache_storage",
+    "//third_party/blink/renderer/modules/manifest:manifest",
+  ]
 }

third_party/blink/renderer/modules/background_fetch/background_fetch_record.h

@@ -9,7 +9,6 @@
 #include "third_party/blink/renderer/bindings/core/v8/script_promise.h"
 #include "third_party/blink/renderer/bindings/core/v8/script_promise_property.h"
 #include "third_party/blink/renderer/core/dom/dom_exception.h"
-#include "third_party/blink/renderer/core/testing/garbage_collected_script_wrappable.h"
 #include "third_party/blink/renderer/modules/modules_export.h"
 #include "third_party/blink/renderer/platform/heap/handle.h"