cc: Compute animation scale on demand

cc/layers/picture_layer_impl_unittest.cc

 // Copyright 2013 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.
 
 #include "cc/layers/picture_layer_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <limits>
@@ skipping 151 matching lines @@
                            float starting_animation_contents_scale,
                            bool animating_transform_to_screen) {
     layer->layer_tree_impl()->SetDeviceScaleFactor(device_scale_factor);
     host_impl()->active_tree()->SetPageScaleOnActiveTree(page_scale_factor);
 
     gfx::Transform scale_transform;
     scale_transform.Scale(ideal_contents_scale, ideal_contents_scale);
     layer->draw_properties().screen_space_transform = scale_transform;
     layer->set_is_drawn_render_surface_layer_list_member(true);
     DCHECK_EQ(layer->GetIdealContentsScale(), ideal_contents_scale);
-    layer->draw_properties().maximum_animation_contents_scale =
-        maximum_animation_contents_scale;
-    layer->draw_properties().starting_animation_contents_scale =
-        starting_animation_contents_scale;
+    layer->layer_tree_impl()->property_trees()->SetAnimationScalesForTesting(
+        layer->transform_tree_index(), maximum_animation_contents_scale,
+        starting_animation_contents_scale);
     layer->draw_properties().screen_space_transform_is_animating =
         animating_transform_to_screen;
   }
 
   void SetupDrawPropertiesAndUpdateTiles(
       FakePictureLayerImpl* layer,
       float ideal_contents_scale,
       float device_scale_factor,
       float page_scale_factor,
       float maximum_animation_contents_scale,
@@ skipping 4815 matching lines @@
     EXPECT_FLOAT_EQ(expected_contents_scale,
                     pending_layer_ptr->picture_layer_tiling_set()
                         ->FindTilingWithResolution(HIGH_RESOLUTION)
                         ->contents_scale())
         << "ideal_contents_scale: " << ideal_contents_scale;
   }
 }
 
 }  // namespace
 }  // namespace cc