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<dt>Revision</dt> <dd><a href="http://trac.webkit.org/projects/webkit/changeset/197825">197825</a></dd>
<dt>Author</dt> <dd>mmaxfield@apple.com</dd>
<dt>Date</dt> <dd>2016-03-08 18:05:13 -0800 (Tue, 08 Mar 2016)</dd>
</dl>
<h3>Log Message</h3>
<pre>Delete dead scrolling code
https://bugs.webkit.org/show_bug.cgi?id=155210
Reviewed by Simon Fraser.
No new tests because there is no behavior change.
* page/FrameView.cpp:
(WebCore::FrameView::layerForScrolling): Deleted.
* page/FrameView.h:
* page/scrolling/ScrollingCoordinator.cpp:
(WebCore::ScrollingCoordinator::scrollLayerForScrollableArea): Deleted.
* page/scrolling/ScrollingCoordinator.h:
* platform/ScrollableArea.h:
(WebCore::ScrollableArea::horizontalScrollbar):
(WebCore::ScrollableArea::verticalScrollbar):
(WebCore::ScrollableArea::tiledBacking):
(WebCore::ScrollableArea::layerForHorizontalScrollbar):
(WebCore::ScrollableArea::layerForVerticalScrollbar):
(WebCore::ScrollableArea::layerForScrollCorner):
(WebCore::ScrollableArea::layerForOverhangAreas):
(WebCore::ScrollableArea::layerForScrolling): Deleted.
* rendering/RenderLayer.cpp:
(WebCore::RenderLayer::calculateClipRects): Deleted.
* rendering/RenderLayer.h:</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunkSourceWebCoreChangeLog">trunk/Source/WebCore/ChangeLog</a></li>
<li><a href="#trunkSourceWebCorepageFrameViewcpp">trunk/Source/WebCore/page/FrameView.cpp</a></li>
<li><a href="#trunkSourceWebCorepageFrameViewh">trunk/Source/WebCore/page/FrameView.h</a></li>
<li><a href="#trunkSourceWebCorepagescrollingScrollingCoordinatorcpp">trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp</a></li>
<li><a href="#trunkSourceWebCorepagescrollingScrollingCoordinatorh">trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.h</a></li>
<li><a href="#trunkSourceWebCoreplatformScrollableAreah">trunk/Source/WebCore/platform/ScrollableArea.h</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderLayercpp">trunk/Source/WebCore/rendering/RenderLayer.cpp</a></li>
<li><a href="#trunkSourceWebCorerenderingRenderLayerh">trunk/Source/WebCore/rendering/RenderLayer.h</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunkSourceWebCoreChangeLog"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/ChangeLog (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/ChangeLog 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/ChangeLog 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -1,3 +1,31 @@
</span><ins>+2016-03-08 Myles C. Maxfield <mmaxfield@apple.com>
+
+ Delete dead scrolling code
+ https://bugs.webkit.org/show_bug.cgi?id=155210
+
+ Reviewed by Simon Fraser.
+
+ No new tests because there is no behavior change.
+
+ * page/FrameView.cpp:
+ (WebCore::FrameView::layerForScrolling): Deleted.
+ * page/FrameView.h:
+ * page/scrolling/ScrollingCoordinator.cpp:
+ (WebCore::ScrollingCoordinator::scrollLayerForScrollableArea): Deleted.
+ * page/scrolling/ScrollingCoordinator.h:
+ * platform/ScrollableArea.h:
+ (WebCore::ScrollableArea::horizontalScrollbar):
+ (WebCore::ScrollableArea::verticalScrollbar):
+ (WebCore::ScrollableArea::tiledBacking):
+ (WebCore::ScrollableArea::layerForHorizontalScrollbar):
+ (WebCore::ScrollableArea::layerForVerticalScrollbar):
+ (WebCore::ScrollableArea::layerForScrollCorner):
+ (WebCore::ScrollableArea::layerForOverhangAreas):
+ (WebCore::ScrollableArea::layerForScrolling): Deleted.
+ * rendering/RenderLayer.cpp:
+ (WebCore::RenderLayer::calculateClipRects): Deleted.
+ * rendering/RenderLayer.h:
+
</ins><span class="cx"> 2016-03-08 Oliver Hunt <oliver@apple.com>
</span><span class="cx">
</span><span class="cx"> Start moving to separated writable and executable mappings in the JIT
</span></span></pre></div>
<a id="trunkSourceWebCorepageFrameViewcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/FrameView.cpp (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/FrameView.cpp 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/page/FrameView.cpp 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -852,14 +852,6 @@
</span><span class="cx"> compositor.updateCompositingLayers(CompositingUpdateAfterLayout);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-GraphicsLayer* FrameView::layerForScrolling() const
-{
- RenderView* renderView = this->renderView();
- if (!renderView)
- return nullptr;
- return renderView->compositor().scrollLayer();
-}
-
</del><span class="cx"> GraphicsLayer* FrameView::layerForHorizontalScrollbar() const
</span><span class="cx"> {
</span><span class="cx"> RenderView* renderView = this->renderView();
</span></span></pre></div>
<a id="trunkSourceWebCorepageFrameViewh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/FrameView.h (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/FrameView.h 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/page/FrameView.h 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -626,7 +626,6 @@
</span><span class="cx"> ScrollableArea* enclosingScrollableArea() const override;
</span><span class="cx"> IntRect scrollableAreaBoundingBox(bool* = nullptr) const override;
</span><span class="cx"> bool scrollAnimatorEnabled() const override;
</span><del>- GraphicsLayer* layerForScrolling() const override;
</del><span class="cx"> GraphicsLayer* layerForHorizontalScrollbar() const override;
</span><span class="cx"> GraphicsLayer* layerForVerticalScrollbar() const override;
</span><span class="cx"> GraphicsLayer* layerForScrollCorner() const override;
</span></span></pre></div>
<a id="trunkSourceWebCorepagescrollingScrollingCoordinatorcpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.cpp 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -209,11 +209,6 @@
</span><span class="cx"> updateSynchronousScrollingReasons(frameView);
</span><span class="cx"> }
</span><span class="cx">
</span><del>-GraphicsLayer* ScrollingCoordinator::scrollLayerForScrollableArea(ScrollableArea& scrollableArea)
-{
- return scrollableArea.layerForScrolling();
-}
-
</del><span class="cx"> GraphicsLayer* ScrollingCoordinator::scrollLayerForFrameView(FrameView& frameView)
</span><span class="cx"> {
</span><span class="cx"> if (RenderView* renderView = frameView.frame().contentRenderer())
</span></span></pre></div>
<a id="trunkSourceWebCorepagescrollingScrollingCoordinatorh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.h (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.h 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/page/scrolling/ScrollingCoordinator.h 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -209,8 +209,6 @@
</span><span class="cx"> protected:
</span><span class="cx"> explicit ScrollingCoordinator(Page*);
</span><span class="cx">
</span><del>- static GraphicsLayer* scrollLayerForScrollableArea(ScrollableArea&);
-
</del><span class="cx"> GraphicsLayer* scrollLayerForFrameView(FrameView&);
</span><span class="cx"> GraphicsLayer* counterScrollingLayerForFrameView(FrameView&);
</span><span class="cx"> GraphicsLayer* insetClipLayerForFrameView(FrameView&);
</span></span></pre></div>
<a id="trunkSourceWebCoreplatformScrollableAreah"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/platform/ScrollableArea.h (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/platform/ScrollableArea.h 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/platform/ScrollableArea.h 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -178,8 +178,8 @@
</span><span class="cx">
</span><span class="cx"> WEBCORE_EXPORT IntSize scrollbarIntrusion() const;
</span><span class="cx">
</span><del>- virtual Scrollbar* horizontalScrollbar() const { return 0; }
- virtual Scrollbar* verticalScrollbar() const { return 0; }
</del><ins>+ virtual Scrollbar* horizontalScrollbar() const { return nullptr; }
+ virtual Scrollbar* verticalScrollbar() const { return nullptr; }
</ins><span class="cx">
</span><span class="cx"> const IntPoint& scrollOrigin() const { return m_scrollOrigin; }
</span><span class="cx"> bool scrollOriginChanged() const { return m_scrollOriginChanged; }
</span><span class="lines">@@ -291,15 +291,15 @@
</span><span class="cx"> bool isPinnedVerticallyInDirection(int verticalScrollDelta) const;
</span><span class="cx"> #endif
</span><span class="cx">
</span><del>- virtual TiledBacking* tiledBacking() const { return 0; }
</del><ins>+ virtual TiledBacking* tiledBacking() const { return nullptr; }
</ins><span class="cx">
</span><span class="cx"> // True if scrolling happens by moving compositing layers.
</span><span class="cx"> virtual bool usesCompositedScrolling() const { return false; }
</span><span class="cx"> // True if the contents can be scrolled asynchronously (i.e. by a ScrollingCoordinator).
</span><span class="cx"> virtual bool usesAsyncScrolling() const { return false; }
</span><span class="cx">
</span><del>- virtual GraphicsLayer* layerForHorizontalScrollbar() const { return 0; }
- virtual GraphicsLayer* layerForVerticalScrollbar() const { return 0; }
</del><ins>+ virtual GraphicsLayer* layerForHorizontalScrollbar() const { return nullptr; }
+ virtual GraphicsLayer* layerForVerticalScrollbar() const { return nullptr; }
</ins><span class="cx">
</span><span class="cx"> bool hasLayerForHorizontalScrollbar() const;
</span><span class="cx"> bool hasLayerForVerticalScrollbar() const;
</span><span class="lines">@@ -322,10 +322,9 @@
</span><span class="cx"> virtual void invalidateScrollCornerRect(const IntRect&) = 0;
</span><span class="cx">
</span><span class="cx"> friend class ScrollingCoordinator;
</span><del>- virtual GraphicsLayer* layerForScrolling() const { return 0; }
- virtual GraphicsLayer* layerForScrollCorner() const { return 0; }
</del><ins>+ virtual GraphicsLayer* layerForScrollCorner() const { return nullptr; }
</ins><span class="cx"> #if ENABLE(RUBBER_BANDING)
</span><del>- virtual GraphicsLayer* layerForOverhangAreas() const { return 0; }
</del><ins>+ virtual GraphicsLayer* layerForOverhangAreas() const { return nullptr; }
</ins><span class="cx"> #endif
</span><span class="cx">
</span><span class="cx"> bool hasLayerForScrollCorner() const;
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderLayercpp"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderLayer.cpp (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderLayer.cpp 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/rendering/RenderLayer.cpp 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -6051,11 +6051,6 @@
</span><span class="cx"> return m_backing && m_backing->hasMaskLayer();
</span><span class="cx"> }
</span><span class="cx">
</span><del>-GraphicsLayer* RenderLayer::layerForScrolling() const
-{
- return m_backing ? m_backing->scrollingContentsLayer() : nullptr;
-}
-
</del><span class="cx"> GraphicsLayer* RenderLayer::layerForHorizontalScrollbar() const
</span><span class="cx"> {
</span><span class="cx"> return m_backing ? m_backing->layerForHorizontalScrollbar() : nullptr;
</span></span></pre></div>
<a id="trunkSourceWebCorerenderingRenderLayerh"></a>
<div class="modfile"><h4>Modified: trunk/Source/WebCore/rendering/RenderLayer.h (197824 => 197825)</h4>
<pre class="diff"><span>
<span class="info">--- trunk/Source/WebCore/rendering/RenderLayer.h 2016-03-09 01:44:47 UTC (rev 197824)
+++ trunk/Source/WebCore/rendering/RenderLayer.h 2016-03-09 02:05:13 UTC (rev 197825)
</span><span class="lines">@@ -610,7 +610,6 @@
</span><span class="cx"> RenderLayerBacking* backing() const { return m_backing.get(); }
</span><span class="cx"> RenderLayerBacking* ensureBacking();
</span><span class="cx"> void clearBacking(bool layerBeingDestroyed = false);
</span><del>- GraphicsLayer* layerForScrolling() const override;
</del><span class="cx"> GraphicsLayer* layerForHorizontalScrollbar() const override;
</span><span class="cx"> GraphicsLayer* layerForVerticalScrollbar() const override;
</span><span class="cx"> GraphicsLayer* layerForScrollCorner() const override;
</span></span></pre>
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