Implement interfaces in PaintInfo and make it a class.

Source/core/rendering/RenderTheme.h

 /*
  * This file is part of the theme implementation for form controls in WebCore.
  *
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 59 matching lines @@
     // This method is called whenever style has been computed for an element and the appearance
     // property has been set to a value other than "none".  The theme should map in all of the appropriate
     // 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(RenderStyle*, Element*,  const CachedUAStyle&);
 
     // This method is called to paint the widget as a background of the RenderObject.  A widget's foreground, e.g., the
     // text of a button, is always rendered by the engine itself.  The boolean return value indicates
     // whether the CSS border/background should also be painted.
-    bool paint(RenderObject*, const PaintInfo&, const IntRect&);
-    bool paintBorderOnly(RenderObject*, const PaintInfo&, const IntRect&);
-    bool paintDecorations(RenderObject*, const PaintInfo&, const IntRect&);
+    bool paint(RenderObject*, PaintInfo&, const IntRect&);
+    bool paintBorderOnly(RenderObject*, PaintInfo&, const IntRect&);
+    bool paintDecorations(RenderObject*, PaintInfo&, const IntRect&);
 
     // The remaining methods should be implemented by the platform-specific portion of the theme, e.g.,
     // RenderThemeMac.cpp for Mac OS X.
 
     // These methods return the theme's extra style sheets rules, to let each platform
     // adjust the default CSS rules in html.css, quirks.css or mediaControls.css.
     virtual String extraDefaultStyleSheet();
     virtual String extraQuirksStyleSheet() { return String(); }
     virtual String extraMediaControlsStyleSheet() { return String(); }
     virtual String extraFullScreenStyleSheet() { return String(); }
@@ skipping 76 matching lines @@
 
     virtual int popupInternalPaddingLeft(RenderStyle*) const { return 0; }
     virtual int popupInternalPaddingRight(RenderStyle*) const { return 0; }
     virtual int popupInternalPaddingTop(RenderStyle*) const { return 0; }
     virtual int popupInternalPaddingBottom(RenderStyle*) const { return 0; }
     virtual bool popupOptionSupportsTextIndent() const { return false; }
 
     virtual ScrollbarControlSize scrollbarControlSizeForPart(ControlPart) { return RegularScrollbar; }
 
     // Method for painting the caps lock indicator
-    virtual bool paintCapsLockIndicator(RenderObject*, const PaintInfo&, const IntRect&) { return 0; };
+    virtual bool paintCapsLockIndicator(RenderObject*, PaintInfo&, const IntRect&) { return 0; };
 
     // Returns the repeat interval of the animation for the progress bar.
     virtual double animationRepeatIntervalForProgressBar(RenderProgress*) const;
     // Returns the duration of the animation for the progress bar.
     virtual double animationDurationForProgressBar(RenderProgress*) const;
 
     // Media controls
     virtual bool supportsClosedCaptioning() const { return false; }
     virtual bool hasOwnDisabledStateHandlingFor(ControlPart) const { return false; }
     virtual bool usesMediaControlStatusDisplay() { return false; }
     virtual bool usesMediaControlVolumeSlider() const { return true; }
     virtual bool usesVerticalVolumeSlider() const { return true; }
     virtual double mediaControlsFadeInDuration() { return 0.1; }
     virtual double mediaControlsFadeOutDuration() { return 0.3; }
     virtual String formatMediaControlsTime(float time) const;
     virtual String formatMediaControlsCurrentTime(float currentTime, float duration) const;
 
     virtual IntSize meterSizeForBounds(const RenderMeter*, const IntRect&) const;
     virtual bool supportsMeter(ControlPart) const;
 
     // Returns the threshold distance for snapping to a slider tick mark.
     virtual LayoutUnit sliderTickSnappingThreshold() const;
     // Returns size of one slider tick mark for a horizontal track.
     // For vertical tracks we rotate it and use it. i.e. Width is always length along the track.
     virtual IntSize sliderTickSize() const = 0;
     // Returns the distance of slider tick origin from the slider track center.
     virtual int sliderTickOffsetFromTrackCenter() const = 0;
-    void paintSliderTicks(RenderObject*, const PaintInfo&, const IntRect&);
+    void paintSliderTicks(RenderObject*, PaintInfo&, const IntRect&);
 
     virtual bool shouldShowPlaceholderWhenFocused() const { return false; }
     virtual bool shouldHaveSpinButton(HTMLInputElement*) const;
 
     // Functions for <select> elements.
     virtual bool delegatesMenuListRendering() const { return false; }
     virtual bool popsMenuByArrowKeys() const { return false; }
     virtual bool popsMenuBySpaceOrReturn() const { return false; }
 
     virtual String fileListDefaultLabel(bool multipleFilesAllowed) const;
@@ skipping 42 matching lines @@
     virtual void adjustTextAreaStyle(RenderStyle*, Element*) const;
     virtual bool paintTextArea(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual void adjustMenuListStyle(RenderStyle*, Element*) const;
     virtual bool paintMenuList(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual void adjustMenuListButtonStyle(RenderStyle*, Element*) const;
     virtual bool paintMenuListButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual void adjustMeterStyle(RenderStyle*, Element*) const;
-    virtual bool paintMeter(RenderObject*, const PaintInfo&, const IntRect&);
+    virtual bool paintMeter(RenderObject*, PaintInfo&, const IntRect&);
 
     virtual void adjustProgressBarStyle(RenderStyle*, Element*) const;
     virtual bool paintProgressBar(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
 #if ENABLE(INPUT_SPEECH)
     virtual void adjustInputFieldSpeechButtonStyle(RenderStyle*, Element*) const;
-    virtual bool paintInputFieldSpeechButton(RenderObject*, const PaintInfo&, const IntRect&);
+    virtual bool paintInputFieldSpeechButton(RenderObject*, PaintInfo&, const IntRect&);
 #endif
 
     virtual void adjustSliderTrackStyle(RenderStyle*, Element*) const;
     virtual bool paintSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual void adjustSliderThumbStyle(RenderStyle*, Element*) const;
     virtual bool paintSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual void adjustSearchFieldStyle(RenderStyle*, Element*) const;
     virtual bool paintSearchField(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
@@ skipping 23 matching lines @@
     virtual bool paintMediaReturnToRealtimeButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaToggleClosedCaptionsButton(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaControlsBackground(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaCurrentTime(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaTimeRemaining(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaFullScreenVolumeSliderTrack(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
     virtual bool paintMediaFullScreenVolumeSliderThumb(RenderObject*, const PaintInfo&, const IntRect&) { return true; }
 
     virtual bool shouldUseFallbackTheme(RenderStyle*) const;
     void adjustStyleUsingFallbackTheme(RenderStyle*, Element*);
-    bool paintUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+    bool paintUsingFallbackTheme(RenderObject*, PaintInfo&, const IntRect&);
     void adjustCheckboxStyleUsingFallbackTheme(RenderStyle*, Element*) const;
-    bool paintCheckboxUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+    bool paintCheckboxUsingFallbackTheme(RenderObject*, PaintInfo&, const IntRect&);
     void adjustRadioStyleUsingFallbackTheme(RenderStyle*, Element*) const;
-    bool paintRadioUsingFallbackTheme(RenderObject*, const PaintInfo&, const IntRect&);
+    bool paintRadioUsingFallbackTheme(RenderObject*, PaintInfo&, const IntRect&);
 
 public:
     // Methods for state querying
     ControlStates controlStatesForRenderer(const RenderObject* o) const;
     bool isActive(const RenderObject*) const;
     bool isChecked(const RenderObject*) const;
     bool isIndeterminate(const RenderObject*) const;
     bool isEnabled(const RenderObject*) const;
     bool isFocused(const RenderObject*) const;
     bool isPressed(const RenderObject*) const;
@@ skipping 20 matching lines @@
     static const RGBA32 defaultTapHighlightColor = 0x66000000;
 
 #if USE(NEW_THEME)
     Theme* m_theme; // The platform-specific theme.
 #endif
 };
 
 } // namespace WebCore
 
 #endif // RenderTheme_h