Set credentials mode "same-origin" when crossOrigin=anonymous is set.

third_party/WebKit/Source/core/loader/TextTrackLoader.cpp

Index: third_party/WebKit/Source/core/loader/TextTrackLoader.cpp
diff --git a/third_party/WebKit/Source/core/loader/TextTrackLoader.cpp b/third_party/WebKit/Source/core/loader/TextTrackLoader.cpp
index 3c1216bea6fc3d34a18c3bb16549cb6e5c5b45dc..ef84e2f0d18e07b1f97d8406842eeb014f7c3e30 100644
--- a/third_party/WebKit/Source/core/loader/TextTrackLoader.cpp
+++ b/third_party/WebKit/Source/core/loader/TextTrackLoader.cpp
@@ -105,14 +105,14 @@ void TextTrackLoader::notifyFinished(Resource* resource)
     cancelLoad();
 }
 
-bool TextTrackLoader::load(const KURL& url, const AtomicString& crossOriginMode)
+bool TextTrackLoader::load(const KURL& url, CrossOriginAttributeValue crossOrigin)
 {
     cancelLoad();
 
     FetchRequest cueRequest(ResourceRequest(document().completeURL(url)), FetchInitiatorTypeNames::texttrack);
 
-    if (!crossOriginMode.isNull()) {
-        cueRequest.setCrossOriginAccessControl(document().securityOrigin(), crossOriginMode);
+    if (crossOrigin != CrossOriginAttributeNotSet) {
+        cueRequest.setCrossOriginAccessControl(document().securityOrigin(), crossOrigin);
     } else if (!document().securityOrigin()->canRequestNoSuborigin(url)) {
         // Text track elements without 'crossorigin' set on the parent are "No CORS"; report error if not same-origin.
         corsPolicyPreventedLoad(document().securityOrigin(), url);