Calculate paint invalidation rect for scrollbars

third_party/WebKit/Source/core/frame/RootFrameViewportTest.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "core/frame/RootFrameViewport.h"
 
 #include "core/layout/ScrollAlignment.h"
 #include "platform/geometry/DoubleRect.h"
@@ skipping 71 matching lines @@
 
     void setScrollOffset(const IntPoint& offset, ScrollType) override { m_scrollPosition = offset; }
     void setScrollOffset(const DoublePoint& offset, ScrollType) override { m_scrollPosition = offset; }
     bool shouldUseIntegerScrollOffset() const override { return true; }
     bool isActive() const override { return true; }
     bool isScrollCornerVisible() const override { return true; }
     IntRect scrollCornerRect() const override { return IntRect(); }
     bool scrollbarsCanBeActive() const override { return true; }
     IntRect scrollableAreaBoundingBox() const override { return IntRect(); }
     bool shouldPlaceVerticalScrollbarOnLeft() const override { return true; }
-    void invalidateScrollbarRect(Scrollbar*, const IntRect&) override { }
-    void invalidateScrollCornerRect(const IntRect&) override { }
+    void scrollControlWasSetNeedsPaintInvalidation() override { }
     GraphicsLayer* layerForContainer() const override { return nullptr; }
     GraphicsLayer* layerForScrolling() const override { return nullptr; }
     GraphicsLayer* layerForHorizontalScrollbar() const override { return nullptr; }
     GraphicsLayer* layerForVerticalScrollbar() const override { return nullptr; }
     bool userInputScrollable(ScrollbarOrientation orientation) const override
     {
         return orientation == HorizontalScrollbar ? m_userInputScrollableX : m_userInputScrollableY;
     }
 
     DoublePoint clampedScrollOffset(const DoublePoint& offset)
@@ skipping 386 matching lines @@
     rootFrameViewport->setScrollPosition(DoublePoint(40, 40), UserScroll);
     EXPECT_POINT_EQ(DoublePoint(40, 40), visualViewport->scrollPositionDouble());
     EXPECT_POINT_EQ(DoublePoint(0, 0), layoutViewport->scrollPositionDouble());
 
     rootFrameViewport->setScrollPosition(DoublePoint(60, 60), ProgrammaticScroll);
     EXPECT_POINT_EQ(DoublePoint(50, 50), visualViewport->scrollPositionDouble());
     EXPECT_POINT_EQ(DoublePoint(10, 10), layoutViewport->scrollPositionDouble());
 }
 
 } // namespace blink