cc: Move tiling management out of draw properties calculation.

cc/layers/layer_impl.h

Index: cc/layers/layer_impl.h
diff --git a/cc/layers/layer_impl.h b/cc/layers/layer_impl.h
index 16747aa9a5bc258a58f854d10b38aad737c22e2d..6400192f8d55d845733f4108bdc64fc7034c4c12 100644
--- a/cc/layers/layer_impl.h
+++ b/cc/layers/layer_impl.h
@@ -182,6 +182,8 @@ class CC_EXPORT LayerImpl : public LayerAnimationValueObserver,
   virtual void NotifyTileInitialized(const Tile* tile) {}
 
   virtual ScrollbarLayerImplBase* ToScrollbarLayer();
+  virtual void ManageTilings(bool animating_transform_to_screen,

[enne (OOO), 2014/05/13 18:04:09]

Please don't add this to LayerImpl.  Too many virtuals already.

[danakj, 2014/05/13 18:10:07]

If this is not being called mid-CalcDrawProps, it can safely use the layer's
draw properties. This one is screen_space_transform_is_animating

https://code.google.com/p/chromium/codesearch#chromium/src/cc/layers/draw_pro...

+                             float maximum_animation_contents_scale) {}

[danakj, 2014/05/13 18:10:07]

This one probably needs to be added to the DrawProperties

 
   // Returns true if this layer has content to draw.
   void SetDrawsContent(bool draws_content);