Merge 157358 "Revalidation header blacklisting should be case-insensitive."

Source/core/loader/cache/Resource.cpp

Index: Source/core/loader/cache/Resource.cpp
===================================================================
--- Source/core/loader/cache/Resource.cpp	(revision 158194)
+++ Source/core/loader/cache/Resource.cpp	(working copy)
@@ -81,11 +81,11 @@
 static inline bool shouldUpdateHeaderAfterRevalidation(const AtomicString& header)
 {
     for (size_t i = 0; i < WTF_ARRAY_LENGTH(headersToIgnoreAfterRevalidation); i++) {
-        if (header == headersToIgnoreAfterRevalidation[i])
+        if (equalIgnoringCase(header, headersToIgnoreAfterRevalidation[i]))
             return false;
     }
     for (size_t i = 0; i < WTF_ARRAY_LENGTH(headerPrefixesToIgnoreAfterRevalidation); i++) {
-        if (header.startsWith(headerPrefixesToIgnoreAfterRevalidation[i]))
+        if (header.startsWith(headerPrefixesToIgnoreAfterRevalidation[i], false))
             return false;
     }
     return true;