Initialize gFunctionMap from CoreInitializer

third_party/WebKit/Source/core/css/MediaQueryEvaluator.cpp

 /*
  * CSS Media Query Evaluator
  *
  * Copyright (C) 2006 Kimmo Kinnunen <kimmo.t.kinnunen@nokia.com>.
  * Copyright (C) 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ skipping 639 matching lines @@
 
     if (!value.isID)
         return false;
 
     // If a platform interface supplies progressive/interlace info for TVs in the
     // future, it needs to be handled here. For now, assume a modern TV with
     // progressive display.
     return (value.id == CSSValueProgressive);
 }
 
-static void createFunctionMap()
+void MediaQueryEvaluator::init()
 {
     // Create the table.
     gFunctionMap = new FunctionMap;
 #define ADD_TO_FUNCTIONMAP(name)  \
     gFunctionMap->set(name##MediaFeature.impl(), name##MediaFeatureEval);
     CSS_MEDIAQUERY_NAMES_FOR_EACH_MEDIAFEATURE(ADD_TO_FUNCTIONMAP);
 #undef ADD_TO_FUNCTIONMAP
 }
 
 bool MediaQueryEvaluator::eval(const MediaQueryExp* expr) const
 {
     if (!m_mediaValues || !m_mediaValues->hasValues())
         return m_expectedResult;
 
-    if (!gFunctionMap)
-        createFunctionMap();
+    DCHECK(gFunctionMap);
 
     // Call the media feature evaluation function. Assume no prefix and let
     // trampoline functions override the prefix if prefix is used.
     EvalFunc func = gFunctionMap->get(expr->mediaFeature().impl());
     if (func)
         return func(expr->expValue(), NoPrefix, *m_mediaValues);
 
     return false;
 }
 
 } // namespace blink