CSSStyleSheetResource should cache decoded text instead of raw bytes

third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h

Index: third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h
diff --git a/third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h b/third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h
index 46888b5368c023d4ac7eaaf7ab802d501715c2b3..b44ce97d6a0f000b97775f800ae87f80908e54a8 100644
--- a/third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h
+++ b/third_party/WebKit/Source/core/fetch/CSSStyleSheetResource.h
@@ -76,8 +76,9 @@ private:
     void setParsedStyleSheetCache(StyleSheetContents*);
 
     void destroyDecodedDataIfPossible() override;
-    void destroyDecodedDataForFailedRevalidation() override { destroyDecodedDataIfPossible(); }
+    void destroyDecodedDataForFailedRevalidation() override;
 
+    // Decoded sheet text cache is available iff loading this CSS resource is successfully complete.
     String m_decodedSheetText;
 
     Member<StyleSheetContents> m_parsedStyleSheetCache;