Support for drawing a debug border around animated layers

cc/layers/layer.h

 // Copyright 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_LAYERS_LAYER_H_
 #define CC_LAYERS_LAYER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 356 matching lines @@
   void ClearRenderSurface();
 
   // The contents scale converts from logical, non-page-scaled pixels to target
   // pixels. The contents scale is 1 for the root layer as it is already in
   // physical pixels. By default contents scale is forced to be 1 except for
   // subclasses of ContentsScalingLayer.
   float contents_scale_x() const { return draw_properties_.contents_scale_x; }
   float contents_scale_y() const { return draw_properties_.contents_scale_y; }
   gfx::Size content_bounds() const { return draw_properties_.content_bounds; }
 
+  bool GetAnimationBounds(gfx::BoxF* out) const { return false; }

[Ian Vollick, 2013/11/28 00:05:12]

I don't think this will be necessary. Ultimately, we'll only be asking for the
animation bounds of LayerImpls, right?

[avallee, 2013/11/28 00:31:08]

It's not. I forgot to delete this in the CL here.

+
   virtual void CalculateContentsScale(float ideal_contents_scale,
                                       float device_scale_factor,
                                       float page_scale_factor,
                                       bool animating_transform_to_screen,
                                       float* contents_scale_x,
                                       float* contents_scale_y,
                                       gfx::Size* content_bounds);
 
   LayerTreeHost* layer_tree_host() { return layer_tree_host_; }
   const LayerTreeHost* layer_tree_host() const { return layer_tree_host_; }
@@ skipping 225 matching lines @@
   DrawProperties<Layer> draw_properties_;
 
   PaintProperties paint_properties_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_LAYER_H_