Ensure video poster preloads use the crossorigin attribute

third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp

Index: third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
diff --git a/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp b/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
index e36a35e0ad959a01665aa23ea217a0db79d75359..991944248bf54eeb23770dff5d79ff1eb0682ea8 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
@@ -408,6 +408,8 @@ class TokenPreloadScanner::StartTagScanner {
                              const String& attributeValue) {
     if (match(attributeName, posterAttr))
       setUrlToLoad(attributeValue, DisallowURLReplacement);
+    else if (match(attributeName, crossoriginAttr))
+      setCrossOrigin(attributeValue);
   }
 
   template <typename NameType>