Remove hasSyntacticallyValidCSSHeader.

sky/engine/core/css/StyleSheetContents.cpp

Index: sky/engine/core/css/StyleSheetContents.cpp
diff --git a/sky/engine/core/css/StyleSheetContents.cpp b/sky/engine/core/css/StyleSheetContents.cpp
index ef8923fbc8bb1f2276e79fff68fd2cfb28228e87..f84cfa3cd93641033c6ef6e8322b43cbf4376244 100644
--- a/sky/engine/core/css/StyleSheetContents.cpp
+++ b/sky/engine/core/css/StyleSheetContents.cpp
@@ -36,8 +36,7 @@
 namespace blink {
 
 StyleSheetContents::StyleSheetContents(const String& originalURL, const CSSParserContext& context)
-    : m_hasSyntacticallyValidCSSHeader(true)
-    , m_usesRemUnits(false)
+    : m_usesRemUnits(false)
     , m_hasMediaQueries(false)
     , m_hasSingleOwnerDocument(true)
     , m_originalURL(originalURL)
@@ -52,15 +51,6 @@ StyleSheetContents::~StyleSheetContents()
 #endif
 }
 
-void StyleSheetContents::setHasSyntacticallyValidCSSHeader(bool isValidCss)
-{
-    if (!isValidCss) {
-        if (Document* document = clientSingleOwnerDocument())
-            removeSheetFromCache(document);
-    }
-    m_hasSyntacticallyValidCSSHeader = isValidCss;
-}
-
 bool StyleSheetContents::isCacheable() const
 {
     // FIXME: StyleSheets with media queries can't be cached because their RuleSet
@@ -70,10 +60,6 @@ bool StyleSheetContents::isCacheable() const
     // agnostic, we can restore sharing of StyleSheetContents with medea queries.
     if (m_hasMediaQueries)
         return false;
-    // If the header is valid we are not going to need to check the SecurityOrigin.
-    // FIXME: Valid mime type avoids the check too.
-    if (!m_hasSyntacticallyValidCSSHeader)
-        return false;
     return true;
 }