Move CrossThreadCopier from platform/ to wtf/

third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h

Index: third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h
diff --git a/third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h b/third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h
index 1fb9193f63b0a72f7e64d934da2510144dc513b4..6d5b451fa448d0885f545139f46e44dbed606461 100644
--- a/third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h
+++ b/third_party/WebKit/Source/core/fetch/ResourceLoaderOptions.h
@@ -32,9 +32,9 @@
 #define ResourceLoaderOptions_h
 
 #include "core/fetch/FetchInitiatorInfo.h"
-#include "platform/CrossThreadCopier.h"
 #include "platform/weborigin/SecurityOrigin.h"
 #include "wtf/Allocator.h"
+#include "wtf/CrossThreadCopier.h"
 
 namespace blink {
 
@@ -184,15 +184,19 @@ struct CrossThreadResourceLoaderOptionsData {
     String contentSecurityPolicyNonce;
 };
 
+} // namespace blink
+
+namespace WTF {
+
 template <>
-struct CrossThreadCopier<ResourceLoaderOptions> {
-    using Type = CrossThreadResourceLoaderOptionsData;
-    static Type copy(const ResourceLoaderOptions& options)
+struct CrossThreadCopier<blink::ResourceLoaderOptions> {
+    using Type = blink::CrossThreadResourceLoaderOptionsData;
+    static Type copy(const blink::ResourceLoaderOptions& options)
     {
-        return CrossThreadResourceLoaderOptionsData(options);
+        return blink::CrossThreadResourceLoaderOptionsData(options);
     }
 };
 
-} // namespace blink
+} // namespace WTF
 
 #endif // ResourceLoaderOptions_h