cc: Move RenderTarget Information to Effect Tree

cc/layers/draw_properties.h

Index: cc/layers/draw_properties.h
diff --git a/cc/layers/draw_properties.h b/cc/layers/draw_properties.h
index 2f3ce5d50121afa99b2c04c801a94e89a4ccf490..127bb3d540cd7f9f55e6f85cdf0f7da4b94a02f0 100644
--- a/cc/layers/draw_properties.h
+++ b/cc/layers/draw_properties.h
@@ -14,7 +14,7 @@
 #include "ui/gfx/transform.h"
 
 namespace cc {
-class LayerImpl;
+class RenderSurfaceImpl;
 
 // Container for properties that layers need to compute before they can be
 // drawn.
@@ -49,11 +49,6 @@ struct CC_EXPORT DrawProperties {
   // True if the layer needs to be clipped by clip_rect.
   bool is_clipped;
 
-  // The layer whose coordinate space this layer draws into. This can be
-  // either the same layer (draw_properties_.render_target == this) or an
-  // ancestor of this layer.
-  LayerImpl* render_target;
-
   // This rect is a bounding box around what part of the layer is visible, in
   // the layer's coordinate space.
   gfx::Rect visible_layer_rect;