Don't use SVG resource documents with an unrecognized MIME-type

third_party/WebKit/Source/core/fetch/Resource.cpp

Index: third_party/WebKit/Source/core/fetch/Resource.cpp
diff --git a/third_party/WebKit/Source/core/fetch/Resource.cpp b/third_party/WebKit/Source/core/fetch/Resource.cpp
index fb32fc9cb99bbfe20480f148aad71201944379dc..29b0e845784c0342abcc709e6d79c398be61d7f7 100644
--- a/third_party/WebKit/Source/core/fetch/Resource.cpp
+++ b/third_party/WebKit/Source/core/fetch/Resource.cpp
@@ -35,6 +35,7 @@
 #include "platform/Logging.h"
 #include "platform/SharedBuffer.h"
 #include "platform/TraceEvent.h"
+#include "platform/network/HTTPParsers.h"
 #include "platform/weborigin/KURL.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebProcessMemoryDump.h"
@@ -318,6 +319,11 @@ void Resource::finish()
         m_status = Cached;
 }
 
+AtomicString Resource::httpContentType() const
+{
+    return extractMIMETypeFromMediaType(m_response.httpHeaderField(HTTPNames::Content_Type).lower());
+}
+
 bool Resource::passesAccessControlCheck(SecurityOrigin* securityOrigin) const
 {
     String ignoredErrorDescription;