Split the CSSParserContext class out of CSSParserMode into its own file.

third_party/WebKit/Source/core/loader/resource/CSSStyleSheetResourceTest.cpp

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/loader/resource/CSSStyleSheetResource.h"
 
 #include "core/css/CSSCrossfadeValue.h"
 #include "core/css/CSSImageValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSProperty.h"
 #include "core/css/CSSSelectorList.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/StyleRule.h"
 #include "core/css/StyleSheetContents.h"
-#include "core/css/parser/CSSParserMode.h"
+#include "core/css/parser/CSSParserContext.h"
 #include "core/css/parser/CSSParserSelector.h"
 #include "core/dom/Document.h"
 #include "core/fetch/FetchContext.h"
 #include "core/fetch/FetchInitiatorTypeNames.h"
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/MemoryCache.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/loader/resource/ImageResource.h"
 #include "core/testing/DummyPageHolder.h"
 #include "platform/heap/Handle.h"
@@ skipping 64 matching lines @@
   // The underlying |contents| for the stylesheet resource must have a
   // matching reference status.
   EXPECT_TRUE(memoryCache()->contains(imageResource));
   EXPECT_FALSE(memoryCache()->contains(cssResource));
   EXPECT_FALSE(contents->isReferencedFromResource());
   EXPECT_FALSE(cssResource->restoreParsedStyleSheet(parserContext));
 }
 
 }  // namespace
 }  // namespace blink