Revert "Revert "First iteration on custom layout.""

sky/engine/core/rendering/RenderCustomLayout.cpp

+// Copyright 2015 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 "sky/engine/config.h"
+#include "sky/engine/core/rendering/RenderCustomLayout.h"
+
+#include "sky/engine/core/rendering/RenderLayer.h"
+#include "sky/engine/core/layout/LayoutCallback.h"
+
+namespace blink {
+
+RenderCustomLayout::RenderCustomLayout(ContainerNode* node)
+    : RenderBlock(node)
+{
+}
+
+RenderCustomLayout::~RenderCustomLayout()
+{
+}
+
+void RenderCustomLayout::layout()
+{
+    // TODO(ojan): This should really be done by the author code, but
+    // if the author code doesn't call layout, then we won't clear the
+    // needsLayout bit and we'll assert.
+    for (RenderBox* child = firstChildBox(); child; child = child->nextSiblingBox()) {
+        child->layoutIfNeeded();
+    }
+
+    ASSERT(node()->isElementNode());
+    toElement(node())->layoutManager()->handleEvent();
+    clearNeedsLayout();
+}
+
+const char* RenderCustomLayout::renderName() const
+{
+    return "RenderCustomLayout";
+}
+
+} // namespace blink
+