cc: Move tiling management out of draw properties calculation.

cc/layers/picture_layer_impl.h

Index: cc/layers/picture_layer_impl.h
diff --git a/cc/layers/picture_layer_impl.h b/cc/layers/picture_layer_impl.h
index bbf5030ba2a0b7ce4d6ee6f8f7a5e37600f91bac..8eed0bafa451d5d15ee0735766c928137419487c 100644
--- a/cc/layers/picture_layer_impl.h
+++ b/cc/layers/picture_layer_impl.h
@@ -97,14 +97,6 @@ class CC_EXPORT PictureLayerImpl
   virtual void DidBecomeActive() OVERRIDE;
   virtual void DidBeginTracing() OVERRIDE;
   virtual void ReleaseResources() OVERRIDE;
-  virtual void CalculateContentsScale(float ideal_contents_scale,
-                                      float device_scale_factor,
-                                      float page_scale_factor,
-                                      float maximum_animation_contents_scale,
-                                      bool animating_transform_to_screen,
-                                      float* contents_scale_x,
-                                      float* contents_scale_y,
-                                      gfx::Size* content_bounds) OVERRIDE;
   virtual skia::RefPtr<SkPicture> GetPicture() OVERRIDE;
 
   // PictureLayerTilingClient overrides.
@@ -138,6 +130,13 @@ class CC_EXPORT PictureLayerImpl
   WhichTree GetTree() const;
   bool IsOnActiveOrPendingTree() const;
 
+  float MaximumTilingContentScale() const;
+  void PopulateSharedQuadStateWithOverrides(

[danakj, 2014/05/23 17:07:34]

Can this be not public?

+      SharedQuadState* state,
+      gfx::Transform target_space_transform,
+      gfx::Size content_bounds,
+      gfx::Rect visible_content_rect) const;
+
  protected:
   friend class LayerRasterTileIterator;
 
@@ -180,6 +179,8 @@ class CC_EXPORT PictureLayerImpl
   bool CanHaveTilingWithScale(float contents_scale) const;
   void SanityCheckTilingState() const;
 
+  void UpdateIdealScales();

[danakj, 2014/05/23 17:07:34]

this should be virtual, right?

+
   virtual void GetDebugBorderProperties(
       SkColor* color, float* width) const OVERRIDE;
   virtual void AsValueInto(base::DictionaryValue* dict) const OVERRIDE;