Aura overlay scrollbars adjust color for dark backgrounds

third_party/WebKit/public/platform/WebScrollbar.h

 /*
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR
  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebScrollbar_h
 #define WebScrollbar_h
 
 #include "WebPoint.h"
 #include "WebRect.h"
+#include "WebScrollbarOverlayColorTheme.h"
 #include "WebSize.h"
 #include "WebVector.h"
 
 namespace blink {
 
 // A const accessor interface for a WebKit scrollbar
 class BLINK_PLATFORM_EXPORT WebScrollbar {
  public:
   enum Orientation { Horizontal, Vertical };
 
@@ skipping 15 matching lines @@
     BackTrackPart = 1 << 2,
     ThumbPart = 1 << 3,
     ForwardTrackPart = 1 << 4,
     BackButtonEndPart = 1 << 5,
     ForwardButtonEndPart = 1 << 6,
     ScrollbarBGPart = 1 << 7,
     TrackBGPart = 1 << 8,
     AllParts = 0xffffffff
   };
 
-  enum ScrollbarOverlayStyle {
-    ScrollbarOverlayStyleDefault,
-    ScrollbarOverlayStyleDark,
-    ScrollbarOverlayStyleLight
-  };
-
   virtual ~WebScrollbar() {}
 
   // Return true if this is an overlay scrollbar.
   virtual bool isOverlay() const = 0;
 
   // Gets the current value (i.e. position inside the region).
   virtual int value() const = 0;
 
   virtual WebPoint location() const = 0;
   virtual WebSize size() const = 0;
   virtual bool enabled() const = 0;
   virtual int maximum() const = 0;
   virtual int totalSize() const = 0;
   virtual bool isScrollableAreaActive() const = 0;
   virtual void getTickmarks(WebVector<WebRect>& tickmarks) const = 0;
   virtual ScrollbarControlSize controlSize() const = 0;
   virtual ScrollbarPart pressedPart() const = 0;
   virtual ScrollbarPart hoveredPart() const = 0;
-  virtual ScrollbarOverlayStyle scrollbarOverlayStyle() const = 0;
+  virtual WebScrollbarOverlayColorTheme scrollbarOverlayColorTheme() const = 0;
   virtual bool isCustomScrollbar() const = 0;
   virtual Orientation orientation() const = 0;
   virtual bool isLeftSideVerticalScrollbar() const = 0;
   virtual float elasticOverscroll() const = 0;
   virtual void setElasticOverscroll(float) = 0;
 };
 
 }  // namespace blink
 
 #endif