Revert of Deprecate 'intrinsic' and 'min-intrinsic' CSS keywords

Source/core/css/parser/CSSParserMode.h

Index: Source/core/css/parser/CSSParserMode.h
diff --git a/Source/core/css/parser/CSSParserMode.h b/Source/core/css/parser/CSSParserMode.h
index d2a7f5c9bd55e3f537ec9e305f7bf3469b3bbcb8..811f445055ac004597cf4c62cab6a4c009f7bdad 100644
--- a/Source/core/css/parser/CSSParserMode.h
+++ b/Source/core/css/parser/CSSParserMode.h
@@ -33,14 +33,12 @@
 
 #include "core/CoreExport.h"
 #include "core/fetch/ResourceLoaderOptions.h"
-#include "core/frame/LocalFrame.h"
 #include "platform/weborigin/KURL.h"
 #include "platform/weborigin/Referrer.h"
 
 namespace blink {
 
 class Document;
-class LocalFrame;
 
 // Must not grow beyond 3 bits, due to packing in StylePropertySet.
 enum CSSParserMode {
@@ -94,8 +92,7 @@
     CSSParserContext(const Document&, UseCounter*, const KURL& baseURL = KURL(), const String& charset = emptyString());
     // FIXME: This constructor shouldn't exist if we properly piped the UseCounter through the CSS
     // subsystem. Currently the UseCounter life time is too crazy and we need a way to override it.
-    CSSParserContext(const CSSParserContext&, LocalFrame*, UseCounter*);
-    ~CSSParserContext();
+    CSSParserContext(const CSSParserContext&, UseCounter*);
 
     bool operator==(const CSSParserContext&) const;
     bool operator!=(const CSSParserContext& other) const { return !(*this == other); }
@@ -120,7 +117,6 @@
 
     KURL completeURL(const String& url) const;
 
-    LocalFrame* frame() const { return m_frame.get(); } // may be null
     UseCounter* useCounter() const { return m_useCounter; }
 
     ContentSecurityPolicyDisposition shouldCheckContentSecurityPolicy() const { return m_shouldCheckContentSecurityPolicy; }
@@ -134,7 +130,6 @@
     bool m_useLegacyBackgroundSizeShorthandBehavior;
     ContentSecurityPolicyDisposition m_shouldCheckContentSecurityPolicy;
 
-    RefPtrWillBePersistent<LocalFrame> m_frame;
     UseCounter* m_useCounter;
 };