OOR-CORS: Remove unused function from platform/loader/cors/cors.{cc|h}

IsCORSSafelistedHeader in platform/loader/cors/ is not used any more.

Bug: None
Change-Id: Iec373260b869d1af64f8a025a1e244be8a446c44
Reviewed-on: https://chromium-review.googlesource.com/c/1332973Reviewed-by: Yutaka Hirano <yhirano@chromium.org>
Commit-Queue: Takashi Toyoshima <toyoshim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607558}

third_party/blink/renderer/platform/loader/cors/cors.cc

@@ -306,16 +306,6 @@ bool IsCORSSafelistedContentType(const String& media_type) {
       std::string(utf8_media_type.data(), utf8_media_type.length()));
 }
 
-bool IsCORSSafelistedHeader(const String& name, const String& value) {
-  DCHECK(!name.IsNull());
-  DCHECK(!value.IsNull());
-  CString utf8_name = name.Utf8();
-  CString utf8_value = value.Utf8();
-  return network::cors::IsCORSSafelistedHeader(
-      std::string(utf8_name.data(), utf8_name.length()),
-      std::string(utf8_value.data(), utf8_value.length()));
-}
-
 bool IsNoCORSSafelistedHeader(const String& name, const String& value) {
   DCHECK(!name.IsNull());
   DCHECK(!value.IsNull());

third_party/blink/renderer/platform/loader/cors/cors.h

@@ -91,8 +91,6 @@ PLATFORM_EXPORT bool CalculateCredentialsFlag(
 // CORS is enabled.
 PLATFORM_EXPORT bool IsCORSSafelistedMethod(const String& method);
 PLATFORM_EXPORT bool IsCORSSafelistedContentType(const String&);
-PLATFORM_EXPORT bool IsCORSSafelistedHeader(const String& name,
-                                            const String& value);
 PLATFORM_EXPORT bool IsNoCORSSafelistedHeader(const String& name,
                                               const String& value);
 PLATFORM_EXPORT Vector<String> CORSUnsafeRequestHeaderNames(