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Minimal test - lines (15, 77)

Code

namespace mozilla {
namespace gfx {
class DrawTarget;
}

namespace widget {

struct ScrollbarParams {
  bool overlay = false;
  bool rolledOver = false;
  bool small = false;
  bool horizontal = false;
  bool rtl = false;
  bool onDarkBackground = false;
  bool custom = false;
  // Two colors only used when custom is true.
  nscolor trackColor = NS_RGBA(0, 0, 0, 0);
  nscolor faceColor = NS_RGBA(0, 0, 0, 0);
};

class ScrollbarDrawingMac final {
 public:
  struct FillRect {
    gfx::Rect mRect;
    nscolor mColor;
  };

  static CSSIntCoord GetScrollbarSize(StyleScrollbarWidth, bool aOverlay);

  static LayoutDeviceIntCoord GetScrollbarSize(StyleScrollbarWidth,
                                               bool aOverlay, float aDpiRatio);
  static LayoutDeviceIntSize GetMinimumWidgetSize(StyleAppearance aAppearance,
                                                  nsIFrame* aFrame,
                                                  float aDpiRatio);
  static ScrollbarParams ComputeScrollbarParams(nsIFrame* aFrame,
                                                const ComputedStyle& aStyle,
                                                bool aIsHorizontal);

  // The caller can draw this rectangle with rounded corners as appropriate.
  struct ThumbRect {
    gfx::Rect mRect;
    nscolor mFillColor;
    nscolor mStrokeColor;
    float mStrokeWidth;
    float mStrokeOutset;
  };

  static ThumbRect GetThumbRect(const gfx::Rect& aRect,
                                const ScrollbarParams& aParams, float aScale);

  using ScrollbarTrackRects = Array;
  static bool GetScrollbarTrackRects(const gfx::Rect& aRect,
                                     const ScrollbarParams& aParams,
                                     float aScale, ScrollbarTrackRects&);

  using ScrollCornerRects = Array;
  static bool GetScrollCornerRects(const gfx::Rect& aRect,
                                   const ScrollbarParams& aParams,
                                   float aScale, ScrollCornerRects&);
};

}  // namespace widget
}  // namespace mozilla

Minimal test - lines (16, 18)

Code

namespace gfx {
class DrawTarget;
}

Minimal test - lines (17, 17)

Code

class DrawTarget;