Add deprecation warning for script fetches with invalid types

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 d46092c33e8a4fbd48ecd06f295b20dadaba6fb4..e65e6df194779cc9f28d55ee61bc09dcae58dad1 100644
--- a/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
+++ b/third_party/WebKit/Source/core/html/parser/HTMLPreloadScanner.cpp
@@ -34,6 +34,7 @@
 #include "core/css/MediaValuesCached.h"
 #include "core/css/parser/SizesAttributeParser.h"
 #include "core/dom/Document.h"
+#include "core/dom/ScriptLoader.h"
 #include "core/fetch/IntegrityMetadata.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ -222,7 +223,6 @@ public:
             }
         }
 
-
         TextPosition position = TextPosition(source.currentLine(), source.currentColumn());
         FetchRequest::ResourceWidth resourceWidth;
         float sourceSize = m_sourceSize;
@@ -248,6 +248,11 @@ public:
         request->setCharset(charset());
         request->setDefer(m_defer);
         request->setIntegrityMetadata(m_integrityMetadata);
+
+        // TODO(csharrison): Once this is deprecated, just abort the request
+        // here.
+        if (match(m_tagImpl, scriptTag) && !ScriptLoader::isValidScriptTypeAndLanguage(m_typeAttributeValue, m_languageAttributeValue, ScriptLoader::AllowLegacyTypeInTypeAttribute))
+            request->setScriptHasInvalidTypeOrLanguage();
         return request;
     }
 
@@ -276,6 +281,10 @@ private:
         // explanation.
         else if (match(attributeName, integrityAttr))
             SubresourceIntegrity::parseIntegrityAttribute(attributeValue, m_integrityMetadata);
+        else if (match(attributeName, typeAttr))
+            m_typeAttributeValue = attributeValue;
+        else if (match(attributeName, languageAttr))
+            m_languageAttributeValue = attributeValue;
     }
 
     template<typename NameType>
@@ -482,6 +491,8 @@ private:
     String m_imgSrcUrl;
     String m_srcsetAttributeValue;
     String m_asAttributeValue;
+    String m_typeAttributeValue;
+    String m_languageAttributeValue;
     float m_sourceSize;
     bool m_sourceSizeSet;
     FetchRequest::DeferOption m_defer;