Change CSSParserContext to have a Document handle (vs UseCounter).

third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp

Index: third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
diff --git a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
index 6de81c9678ca37942f584890d5f617da8a48b3d8..9143aa370564f0cbaa769690672efba15a4f053d 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
+++ b/third_party/WebKit/Source/core/css/parser/CSSSelectorParser.cpp
@@ -808,7 +808,7 @@ CSSSelectorParser::splitCompoundAtImplicitShadowCrossingCombinator(
 
 void CSSSelectorParser::recordUsageAndDeprecations(
     const CSSSelectorList& selectorList) {
-  if (!m_context->useCounter())
+  if (!m_context->isUseCounterRecordingEnabled())
     return;
 
   for (const CSSSelector* selector = selectorList.first(); selector;
@@ -904,11 +904,11 @@ void CSSSelectorParser::recordUsageAndDeprecations(
           Deprecation::countDeprecation(*m_styleSheet->anyOwnerDocument(),
                                         feature);
         } else {
-          m_context->useCounter()->count(feature);
+          m_context->count(feature);
         }
       }
       if (current->relation() == CSSSelector::IndirectAdjacent)
-        m_context->useCounter()->count(UseCounter::CSSSelectorIndirectAdjacent);
+        m_context->count(UseCounter::CSSSelectorIndirectAdjacent);
       if (current->selectorList())
         recordUsageAndDeprecations(*current->selectorList());
     }