Eliminate FontBuilder::initForStyleResolve.

Source/core/css/resolver/FontBuilder.h

Index: Source/core/css/resolver/FontBuilder.h
diff --git a/Source/core/css/resolver/FontBuilder.h b/Source/core/css/resolver/FontBuilder.h
index fb747d5c55daf02a001575016835567b17cf5482..fc2f537ef6e9b18191f09c85d2ef271c8ea41dd2 100644
--- a/Source/core/css/resolver/FontBuilder.h
+++ b/Source/core/css/resolver/FontBuilder.h
@@ -41,11 +41,9 @@ class FontBuilder {
     STACK_ALLOCATED();
     WTF_MAKE_NONCOPYABLE(FontBuilder);
 public:
-    FontBuilder();
-
-    // FIXME: The name is probably wrong, but matches StyleResolverState callsite for consistency.
-    void initForStyleResolve(const Document&, RenderStyle*);
+    FontBuilder(const Document&);
 
+    void setStyle(RenderStyle* style) { m_style = style; }
     void setInitial(float effectiveZoom);
 
     void didChangeFontParameters(bool);
@@ -107,7 +105,7 @@ private:
 
     float getComputedSizeFromSpecifiedSize(FontDescription&, float effectiveZoom, float specifiedSize);
 
-    RawPtrWillBeMember<const Document> m_document;
+    const Document& m_document;
     // FIXME: This member is here on a short-term lease. The plan is to remove
     // any notion of RenderStyle from here, allowing FontBuilder to build Font objects
     // directly, rather than as a byproduct of calling RenderStyle::setFontDescription.