Remove most of the old compositing code.

sky/engine/core/rendering/compositing/GraphicsLayerUpdater.cpp

Index: sky/engine/core/rendering/compositing/GraphicsLayerUpdater.cpp
diff --git a/sky/engine/core/rendering/compositing/GraphicsLayerUpdater.cpp b/sky/engine/core/rendering/compositing/GraphicsLayerUpdater.cpp
deleted file mode 100644
index 6bedcf14d4e360ba51d413bed9248f8d44058918..0000000000000000000000000000000000000000
--- a/sky/engine/core/rendering/compositing/GraphicsLayerUpdater.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- * Copyright (C) 2009, 2010 Apple Inc. All rights reserved.
- * Copyright (C) 2014 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. ``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 COMPUTER, INC. OR
- * 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.
- */
-
-#include "sky/engine/config.h"
-#include "sky/engine/core/rendering/compositing/GraphicsLayerUpdater.h"
-
-#include "sky/engine/core/rendering/RenderLayer.h"
-#include "sky/engine/core/rendering/compositing/CompositedLayerMapping.h"
-#include "sky/engine/core/rendering/compositing/RenderLayerCompositor.h"
-#include "sky/engine/platform/TraceEvent.h"
-
-namespace blink {
-
-class GraphicsLayerUpdater::UpdateContext {
-public:
-    UpdateContext()
-        : m_compositingStackingContext(0)
-        , m_compositingAncestor(0)
-    {
-    }
-
-    UpdateContext(const UpdateContext& other, const RenderLayer& layer)
-        : m_compositingStackingContext(other.m_compositingStackingContext)
-        , m_compositingAncestor(other.compositingContainer(layer))
-    {
-        CompositingState compositingState = layer.compositingState();
-        if (compositingState != NotComposited && compositingState != PaintsIntoGroupedBacking) {
-            m_compositingAncestor = &layer;
-            if (layer.stackingNode()->isStackingContext())
-                m_compositingStackingContext = &layer;
-        }
-    }
-
-    const RenderLayer* compositingContainer(const RenderLayer& layer) const
-    {
-        return layer.stackingNode()->isNormalFlowOnly() ? m_compositingAncestor : m_compositingStackingContext;
-    }
-
-    const RenderLayer* compositingStackingContext() const
-    {
-        return m_compositingStackingContext;
-    }
-
-private:
-    const RenderLayer* m_compositingStackingContext;
-    const RenderLayer* m_compositingAncestor;
-};
-
-GraphicsLayerUpdater::GraphicsLayerUpdater()
-    : m_needsRebuildTree(false)
-{
-}
-
-GraphicsLayerUpdater::~GraphicsLayerUpdater()
-{
-}
-
-void GraphicsLayerUpdater::update(RenderLayer& layer, Vector<RenderLayer*>& layersNeedingPaintInvalidation)
-{
-    TRACE_EVENT0("blink", "GraphicsLayerUpdater::update");
-    updateRecursive(layer, DoNotForceUpdate, UpdateContext(), layersNeedingPaintInvalidation);
-    layer.compositor()->updateRootLayerPosition();
-}
-
-void GraphicsLayerUpdater::updateRecursive(RenderLayer& layer, UpdateType updateType, const UpdateContext& context, Vector<RenderLayer*>& layersNeedingPaintInvalidation)
-{
-    if (layer.hasCompositedLayerMapping()) {
-        CompositedLayerMapping* mapping = layer.compositedLayerMapping();
-
-        if (updateType == ForceUpdate || mapping->needsGraphicsLayerUpdate()) {
-            const RenderLayer* compositingContainer = context.compositingContainer(layer);
-            ASSERT(compositingContainer == layer.enclosingLayerWithCompositedLayerMapping(ExcludeSelf));
-
-            if (mapping->updateRequiresOwnBackingStoreForAncestorReasons(compositingContainer)) {
-                layersNeedingPaintInvalidation.append(&layer);
-                updateType = ForceUpdate;
-            }
-
-            if (mapping->updateGraphicsLayerConfiguration())
-                m_needsRebuildTree = true;
-
-            mapping->updateGraphicsLayerGeometry(compositingContainer, context.compositingStackingContext(), layersNeedingPaintInvalidation);
-
-            updateType = mapping->updateTypeForChildren(updateType);
-            mapping->clearNeedsGraphicsLayerUpdate();
-        }
-    }
-
-    UpdateContext childContext(context, layer);
-    for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
-        updateRecursive(*child, updateType, childContext, layersNeedingPaintInvalidation);
-}
-
-#if ENABLE(ASSERT)
-
-void GraphicsLayerUpdater::assertNeedsToUpdateGraphicsLayerBitsCleared(RenderLayer& layer)
-{
-    if (layer.hasCompositedLayerMapping())
-        layer.compositedLayerMapping()->assertNeedsToUpdateGraphicsLayerBitsCleared();
-
-    for (RenderLayer* child = layer.firstChild(); child; child = child->nextSibling())
-        assertNeedsToUpdateGraphicsLayerBitsCleared(*child);
-}
-
-#endif
-
-} // namespace blink