Add use counter for credentialed CORS access from null origins.

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 3fd12eae5a5d76650b5f285583a88437d3932f8a..7e78f8d518731f0d4b911049537baf6340d3cca7 100644
--- a/Source/core/fetch/CrossOriginAccessControl.h
+++ b/Source/core/fetch/CrossOriginAccessControl.h
@@ -36,6 +36,7 @@ namespace blink {
 
 typedef HashSet<String, CaseFoldingHash> HTTPHeaderSet;
 
+class ExecutionContext;
 class Resource;
 struct ResourceLoaderOptions;
 class ResourceRequest;
@@ -50,7 +51,7 @@ enum AccessControlStatus {
 class CrossOriginAccessControl {
 public:
     static bool isLegalRedirectLocation(const KURL&, String& errorDescription);
-    static bool handleRedirect(Resource*, SecurityOrigin*, ResourceRequest&, const ResourceResponse&, ResourceLoaderOptions&, String&);
+    static bool handleRedirect(ExecutionContext*, Resource*, SecurityOrigin*, ResourceRequest&, const ResourceResponse&, ResourceLoaderOptions&, String&);
 };
 
 bool isOnAccessControlResponseHeaderWhitelist(const String&);
@@ -58,7 +59,7 @@ bool isOnAccessControlResponseHeaderWhitelist(const String&);
 void updateRequestForAccessControl(ResourceRequest&, SecurityOrigin*, StoredCredentials);
 ResourceRequest createAccessControlPreflightRequest(const ResourceRequest&, SecurityOrigin*);
 
-bool passesAccessControlCheck(const ResourceResponse&, StoredCredentials, SecurityOrigin*, String& errorDescription);
+bool passesAccessControlCheck(ExecutionContext*, const ResourceResponse&, StoredCredentials, SecurityOrigin*, String& errorDescription);
 bool passesPreflightStatusCheck(const ResourceResponse&, String& errorDescription);
 void parseAccessControlExposeHeadersAllowList(const String& headerValue, HTTPHeaderSet&);