Move fetch-related predicates to core/fetch.

Source/core/fetch/CrossOriginAccessControl.h

Index: Source/core/fetch/CrossOriginAccessControl.h
diff --git a/Source/core/fetch/CrossOriginAccessControl.h b/Source/core/fetch/CrossOriginAccessControl.h
index a96536f553a472e670855a4c2cc1266d66c29d6f..97b5b2fa24a01efbbfe3e7f67c054d5f4de891a2 100644
--- a/Source/core/fetch/CrossOriginAccessControl.h
+++ b/Source/core/fetch/CrossOriginAccessControl.h
@@ -52,11 +52,16 @@ class CrossOriginAccessControl {
 public:
     static bool isLegalRedirectLocation(const KURL&, String& errorDescription);
     static bool handleRedirect(Resource*, SecurityOrigin*, ResourceRequest&, const ResourceResponse&, ResourceLoaderOptions&, String&);
+    static bool isSimpleMethod(const String& method);
+    static bool isSimpleHeader(const AtomicString& name, const AtomicString& value);
+    static bool isSimpleRequest(const String& method, const HTTPHeaderMap&);
+    static bool isForbiddenMethod(const String& method);
+    static bool isUsefulMethod(const String& method) { return !isForbiddenMethod(method); }
+    static bool isForbiddenHeaderName(const String& name);
+    static bool isForbiddenResponseHeaderName(const String& name);
+    static bool isSimpleOrForbiddenRequest(const String& method, const HTTPHeaderMap&);
 };
 
-bool isSimpleCrossOriginAccessRequest(const String& method, const HTTPHeaderMap&);
-bool isOnAccessControlSimpleRequestMethodWhitelist(const String&);
-bool isOnAccessControlSimpleRequestHeaderWhitelist(const AtomicString& name, const AtomicString& value);
 bool isOnAccessControlResponseHeaderWhitelist(const String&);
 
 void updateRequestForAccessControl(ResourceRequest&, SecurityOrigin*, StoredCredentials);