Replace LayerImpl::sorting_context_id with transform reference.

cc/layers/surface_layer_impl_unittest.cc

 // Copyright 2014 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/surface_layer_impl.h"
 
 #include <stddef.h>
 
 #include "cc/layers/append_quads_data.h"
 #include "cc/test/layer_test_common.h"
@@ skipping 58 matching lines @@
   LayerTestCommon::LayerImplTest impl;
   SurfaceLayerImpl* surface_layer_impl =
       impl.AddChildToRoot<SurfaceLayerImpl>();
   const LocalFrameId kArbitraryLocalFrameId(9,
                                             base::UnguessableToken::Create());
 
   // Given condition: layer and surface have different size and different
   // aspect ratios.
   gfx::Size layer_size(400, 100);
   gfx::Size surface_size(300, 300);
+  gfx::Size viewport_size(1000, 1000);
   float surface_scale = 1.f;
   gfx::Transform target_space_transform(
       surface_layer_impl->draw_properties().target_space_transform);
 
   // The following code is mimicking the PushPropertiesTo from pending to
   // active tree.
   surface_layer_impl->SetBounds(layer_size);
   surface_layer_impl->SetDrawsContent(true);
   SurfaceId surface_id(kArbitraryFrameSinkId, kArbitraryLocalFrameId);
   surface_layer_impl->SetSurfaceInfo(
       SurfaceInfo(surface_id, surface_scale, surface_size));
   surface_layer_impl->SetStretchContentToFillBounds(true);
 
+  impl.CalcDrawProps(viewport_size);
+
   std::unique_ptr<RenderPass> render_pass = RenderPass::Create();
   AppendQuadsData data;
   surface_layer_impl->AppendQuads(render_pass.get(), &data);
 
   const QuadList& quads = render_pass->quad_list;
   ASSERT_EQ(1u, quads.size());
   const SharedQuadState* shared_quad_state = quads.front()->shared_quad_state;
 
   // We expect that the transform for the quad stretches the quad to cover the
   // entire bounds of the layer.
@@ skipping 15 matching lines @@
   gfx::RectF layer_rect(layer_size.width(), layer_size.height());
   gfx::RectF transformed_layer_rect =
       MathUtil::MapClippedRect(target_space_transform, layer_rect);
 
   // Check if quad rect in target space matches layer rect in target space
   EXPECT_EQ(transformed_quad_rect, transformed_layer_rect);
 }
 
 }  // namespace
 }  // namespace cc