Delete AuthorStyleInfo and move its data into ComputedStyle.RareNonInheritedData.

Source/core/layout/LayoutTheme.h

Index: Source/core/layout/LayoutTheme.h
diff --git a/Source/core/layout/LayoutTheme.h b/Source/core/layout/LayoutTheme.h
index 67d6fc8c71974093f53ff7aad61eb1b4df1d4687..fde7efad80516213dd99a49d6d2ff4854467410a 100644
--- a/Source/core/layout/LayoutTheme.h
+++ b/Source/core/layout/LayoutTheme.h
@@ -33,7 +33,6 @@
 
 namespace blink {
 
-class AuthorStyleInfo;
 class ComputedStyle;
 class Element;
 class FileList;
@@ -62,7 +61,7 @@ public:
     // metrics and defaults given the contents of the style.  This includes sophisticated operations like
     // selection of control size based off the font, the disabling of appearance when certain other properties like
     // "border" are set, or if the appearance is not supported by the theme.
-    void adjustStyle(ComputedStyle&, Element*, const AuthorStyleInfo&);
+    void adjustStyle(ComputedStyle&, Element*);
 
     // The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
     // LayoutThemeMac.cpp for Mac OS X.
@@ -84,7 +83,7 @@ public:
     bool isControlContainer(ControlPart) const;
 
     // Whether or not the control has been styled enough by the author to disable the native appearance.
-    virtual bool isControlStyled(const ComputedStyle&, const AuthorStyleInfo&) const;
+    virtual bool isControlStyled(const ComputedStyle&) const;
 
     // Some controls may spill out of their containers (e.g., the check on an OSX 10.9 checkbox). Add this
     // "visual overflow" to the object's border box rect.