Delete remaining masks dead code.

sky/engine/core/rendering/RenderLayer.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 456 matching lines @@
 enum TransparencyClipBoxMode {
     DescendantsOfTransparencyClipBox,
     RootOfTransparencyClipBox
 };
 
 static LayoutRect transparencyClipBox(const RenderLayer*, const RenderLayer* rootLayer, TransparencyClipBoxBehavior, TransparencyClipBoxMode, const LayoutSize& subPixelAccumulation);
 
 static void expandClipRectForDescendantsAndReflection(LayoutRect& clipRect, const RenderLayer* layer, const RenderLayer* rootLayer,
     TransparencyClipBoxBehavior transparencyBehavior, const LayoutSize& subPixelAccumulation)
 {
-    // If we have a mask, then the clip is limited to the border box area (and there is
-    // no need to examine child layers).
-    if (!layer->renderer()->hasMask()) {
-        // Note: we don't have to walk z-order lists since transparent elements always establish
-        // a stacking container. This means we can just walk the layer tree directly.
-        for (RenderLayer* curr = layer->firstChild(); curr; curr = curr->nextSibling())
-            clipRect.unite(transparencyClipBox(curr, rootLayer, transparencyBehavior, DescendantsOfTransparencyClipBox, subPixelAccumulation));
-    }
+    // Note: we don't have to walk z-order lists since transparent elements always establish
+    // a stacking container. This means we can just walk the layer tree directly.
+    for (RenderLayer* curr = layer->firstChild(); curr; curr = curr->nextSibling())
+        clipRect.unite(transparencyClipBox(curr, rootLayer, transparencyBehavior, DescendantsOfTransparencyClipBox, subPixelAccumulation));
 }
 
 static LayoutRect transparencyClipBox(const RenderLayer* layer, const RenderLayer* rootLayer, TransparencyClipBoxBehavior transparencyBehavior,
     TransparencyClipBoxMode transparencyMode, const LayoutSize& subPixelAccumulation)
 {
     // FIXME: Although this function completely ignores CSS-imposed clipping, we did already intersect with the
     // paintDirtyRect, and that should cut down on the amount we have to paint.  Still it
     // would be better to respect clips.
 
     if (rootLayer != layer && ((transparencyBehavior == PaintingTransparencyClipBox && layer->paintsWithTransform())
@@ skipping 1078 matching lines @@
 bool RenderLayer::hasVisibleBoxDecorations() const
 {
     return hasBoxDecorationsOrBackground();
 }
 
 bool RenderLayer::isVisuallyNonEmpty() const
 {
     if (hasNonEmptyChildRenderers())
         return true;
 
-    if (renderer()->isReplaced() || renderer()->hasMask())
+    if (renderer()->isReplaced())
         return true;
 
     if (hasVisibleBoxDecorations())
         return true;
 
     return false;
 }
 
 void RenderLayer::updateFilters(const RenderStyle* oldStyle, const RenderStyle* newStyle)
 {
@@ skipping 78 matching lines @@
     }
 }
 
 void showLayerTree(const blink::RenderObject* renderer)
 {
     if (!renderer)
         return;
     showLayerTree(renderer->enclosingLayer());
 }
 #endif