Remove RenderPart.

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

Index: sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
diff --git a/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp b/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
index a8701d65c4a1c4ff67edc03ccba92a6da7ccc7b2..f914e69df5f590078db88d1f3ea3a13792d16fcd 100644
--- a/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
+++ b/sky/engine/core/rendering/compositing/RenderLayerCompositor.cpp
@@ -38,7 +38,6 @@
 #include "core/page/scrolling/ScrollingCoordinator.h"
 #include "core/rendering/RenderLayerStackingNode.h"
 #include "core/rendering/RenderLayerStackingNodeIterator.h"
-#include "core/rendering/RenderPart.h"
 #include "core/rendering/RenderVideo.h"
 #include "core/rendering/RenderView.h"
 #include "core/rendering/compositing/CompositedLayerMapping.h"
@@ -342,12 +341,6 @@ bool RenderLayerCompositor::allocateOrClearCompositedLayerMapping(RenderLayer* l
     if (layer->hasCompositedLayerMapping() && layer->compositedLayerMapping()->updateRequiresOwnBackingStoreForIntrinsicReasons())
         compositedLayerMappingChanged = true;
 
-    if (compositedLayerMappingChanged && layer->renderer()->isRenderPart()) {
-        RenderLayerCompositor* innerCompositor = frameContentsCompositor(toRenderPart(layer->renderer()));
-        if (innerCompositor && innerCompositor->staleInCompositingMode())
-            innerCompositor->updateRootLayerAttachment();
-    }
-
     if (compositedLayerMappingChanged)
         layer->clipper().clearClipRectsIncludingDescendants(PaintingClipRects);
 
@@ -477,32 +470,6 @@ String RenderLayerCompositor::layerTreeAsText(LayerTreeFlags flags)
     return layerTreeText;
 }
 
-RenderLayerCompositor* RenderLayerCompositor::frameContentsCompositor(RenderPart* renderer)
-{
-    return 0;
-}
-
-// FIXME: What does this function do? It needs a clearer name.
-bool RenderLayerCompositor::parentFrameContentLayers(RenderPart* renderer)
-{
-    RenderLayerCompositor* innerCompositor = frameContentsCompositor(renderer);
-    if (!innerCompositor || !innerCompositor->staleInCompositingMode() || innerCompositor->rootLayerAttachment() != RootLayerAttachedViaEnclosingFrame)
-        return false;
-
-    RenderLayer* layer = renderer->layer();
-    if (!layer->hasCompositedLayerMapping())
-        return false;
-
-    CompositedLayerMapping* compositedLayerMapping = layer->compositedLayerMapping();
-    GraphicsLayer* hostingLayer = compositedLayerMapping->parentForSublayers();
-    GraphicsLayer* rootLayer = innerCompositor->rootGraphicsLayer();
-    if (hostingLayer->children().size() != 1 || hostingLayer->children()[0] != rootLayer) {
-        hostingLayer->removeAllChildren();
-        hostingLayer->addChild(rootLayer);
-    }
-    return true;
-}
-
 static void fullyInvalidatePaintRecursive(RenderLayer* layer)
 {
     if (layer->compositingState() == PaintsIntoOwnBacking) {