Fixing tile grid size used by cc:Picture to make it respect current tile configuration

cc/picture_pile_base.h

Index: cc/picture_pile_base.h
diff --git a/cc/picture_pile_base.h b/cc/picture_pile_base.h
index 35c1f300cb2b0db2ce54cbd25bc60d2e5908e83b..605b23c95452e5d27ebe49122ea5018ea0c225b8 100644
--- a/cc/picture_pile_base.h
+++ b/cc/picture_pile_base.h
@@ -18,6 +18,10 @@
 
 namespace cc {
 
+class LayerTreeHost;
+class LayerTreeHostImpl;
+class LayerTreeSettings;
+
 class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
  public:
   PicturePileBase();
@@ -36,6 +40,9 @@ class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
   gfx::Rect tile_bounds(int x, int y) const { return tiling_.TileBounds(x, y); }
   bool HasRecordingAt(int x, int y);
 
+  void ApplyLayerTreeSettings(LayerTreeHost* host);
+  void ApplyLayerTreeSettings(LayerTreeHostImpl* host_impl);  // for testing

[enne (OOO), 2013/02/25 23:59:15]

Could you just directly pass in the values you need here rather than exposing
LTH(I) to PicturePile?

+
  protected:
   virtual ~PicturePileBase();
 
@@ -52,8 +59,10 @@ class CC_EXPORT PicturePileBase : public base::RefCounted<PicturePileBase> {
   TilingData tiling_;
   Region recorded_region_;
   float min_contents_scale_;
+  SkTileGridPicture::TileGridInfo tile_grid_info_;
 
  private:
+  void ApplyLayerTreeSettings(const LayerTreeSettings& settings, float scale);
   void SetBufferPixels(int buffer_pixels);
 
   friend class base::RefCounted<PicturePileBase>;