Roll up patch for running layout tests under Aura.

public/platform/default/WebThemeEngine.h

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 53 matching lines @@
         PartInnerSpinButton,
         PartProgressBar
     };
 
     // The current state of the associated Part.
     enum State {
         StateDisabled,
         StateHover,
         StateNormal,
         StatePressed,
+        StateFocused,
+        StateReadonly,
+        StateHot,
     };
 
     // Extra parameters for drawing the PartScrollbarHorizontalTrack and
     // PartScrollbarVerticalTrack.
     struct ScrollbarTrackExtraParams {
+        bool isBack; // Whether this is the 'back' part or the 'forward' part.

[jamesr, 2013/11/06 21:54:09]

in other parts of theming code, this is handled by having different Parts for
the forward and backward parts of the track. not sure if that'd be more useful
here than what you're doing

[Dirk Pranke, 2013/11/06 22:29:11]

Yup. I was trying to avoid changes to the WebThemeEngine that would impact the
other implementations. Arguably, since no other theme actually cares about
whether the part is a forward or backward part, we shouldn't either and we don't
need this, but we wouldn't match the existing baselines that way, so I'd prefer
to revisit this later.

+
         // The bounds of the entire track, as opposed to the part being painted.
         int trackX;
         int trackY;
         int trackWidth;
         int trackHeight;
     };
 
     // Extra parameters for PartCheckbox, PartPushButton and PartRadio.
     struct ButtonExtraParams {
         bool checked;
         bool indeterminate; // Whether the button state is indeterminate.
         bool isDefault; // Whether the button is default button.
         bool hasBorder;
         WebColor backgroundColor;
     };
 
     // Extra parameters for PartTextField
     struct TextFieldExtraParams {
         bool isTextArea;
         bool isListbox;
         WebColor backgroundColor;
     };
 
     // Extra parameters for PartMenuList
     struct MenuListExtraParams {
         bool hasBorder;
         bool hasBorderRadius;
         int arrowX;
         int arrowY;
+        int arrowHeight;
         WebColor backgroundColor;
+        bool fillContentArea;
     };
 
     // Extra parameters for PartSliderTrack and PartSliderThumb
     struct SliderExtraParams {
         bool vertical;
         bool inDrag;
     };
 
     // Extra parameters for PartInnerSpinButton
     struct InnerSpinButtonExtraParams {
@@ skipping 24 matching lines @@
     // like vertical scrollbar thumbs, the width will be the required width of
     // the track while the height will be the minimum height.
     virtual WebSize getSize(Part) { return WebSize(); }
     // Paint the given the given theme part.
     virtual void paint(WebCanvas*, Part, State, const WebRect&, const ExtraParams*) { }
 };
 
 } // namespace WebKit
 
 #endif