Implement a method to access the non-composited content root layer picture pile.

cc/layer_tree_host_impl.h

Index: cc/layer_tree_host_impl.h
diff --git a/cc/layer_tree_host_impl.h b/cc/layer_tree_host_impl.h
index 61077267357487e2bacc2162fa649af2594d3867..879a3cb1570d4a6d5208ac0b2d150d3411c49e44 100644
--- a/cc/layer_tree_host_impl.h
+++ b/cc/layer_tree_host_impl.h
@@ -313,6 +313,8 @@ public:
 
     const PinchZoomViewport& pinchZoomViewport() const { return m_pinchZoomViewport; }
 
+    scoped_refptr<PicturePileImpl> capturePicturePile();
+
 protected:
     LayerTreeHostImpl(const LayerTreeSettings&, LayerTreeHostImplClient*, Proxy*);
     void activatePendingTree();
@@ -359,6 +361,8 @@ private:
 
     void dumpRenderSurfaces(std::string*, int indent, const LayerImpl*) const;
 
+    static LayerImpl* getNonCompositedContentRootLayerRecursive(LayerImpl* layer);

[danakj, 2013/01/04 18:10:01]

nit: "NonCompositedContentLayer" is enough, there's only one such layer, so the
"Root" part is kinda unnecessary.

[Leandro Graciá Gil, 2013/01/04 20:40:15]

Done.

+
     scoped_ptr<OutputSurface> m_outputSurface;
     scoped_ptr<ResourceProvider> m_resourceProvider;
     scoped_ptr<Renderer> m_renderer;