Move fetch-related predicates to core/fetch.

Source/modules/serviceworkers/Request.cpp

Index: Source/modules/serviceworkers/Request.cpp
diff --git a/Source/modules/serviceworkers/Request.cpp b/Source/modules/serviceworkers/Request.cpp
index 50d5304bf7dabee4a4f7a937f1177f011688f31b..1fe9fa91c97c6f73e14434a24243edb28987ea15 100644
--- a/Source/modules/serviceworkers/Request.cpp
+++ b/Source/modules/serviceworkers/Request.cpp
@@ -61,7 +61,7 @@ PassRefPtrWillBeRawPtr<Request> createRequestWithRequestData(PassRefPtrWillBeRaw
     // these substeps:"
     if (!init.method.isEmpty()) {
         // "1. If |method| is not a useful method, throw a TypeError."
-        if (!FetchManager::isUsefulMethod(init.method)) {
+        if (!CrossOriginAccessControl::isUsefulMethod(init.method)) {
             exceptionState.throwTypeError("'" + init.method + "' HTTP method is unsupported.");
             return nullptr;
         }
@@ -93,7 +93,7 @@ PassRefPtrWillBeRawPtr<Request> createRequestWithRequestData(PassRefPtrWillBeRaw
     if (r->request()->mode() == FetchRequestData::NoCORSMode) {
         // "1. If |r|'s request's method is not a simple method, throw a
         // TypeError."
-        if (!FetchManager::isSimpleMethod(r->request()->method())) {
+        if (!CrossOriginAccessControl::isSimpleMethod(r->request()->method())) {
             exceptionState.throwTypeError("'" + r->request()->method() + "' is unsupported in no-cors mode.");
             return nullptr;
         }