cc: Add verify transform tree calculations to LayerTreeSettings

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 75 matching lines @@
     TestLayerTreeHostBase::SetUp();
     host_impl()->SetViewportSize(gfx::Size(10000, 10000));
   }
 
   LayerTreeSettings CreateSettings() override {
     LayerTreeSettings settings;
     settings.gpu_rasterization_enabled = true;
     settings.layer_transforms_should_scale_layer_contents = true;
     settings.create_low_res_tiling = true;
     settings.verify_clip_tree_calculations = true;
+    settings.verify_transform_tree_calculations = true;
     return settings;
   }
 
   void SetupDefaultTreesWithFixedTileSize(const gfx::Size& layer_bounds,
                                           const gfx::Size& tile_size,
                                           const Region& invalidation) {
     scoped_refptr<FakeRasterSource> pending_raster_source =
         FakeRasterSource::CreateFilled(layer_bounds);
     scoped_refptr<FakeRasterSource> active_raster_source =
         FakeRasterSource::CreateFilled(layer_bounds);
@@ skipping 4895 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