cc: Reduce surface contents scale adjustments.

cc/layers/render_surface_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/render_surface_impl.h"
 
 #include <stddef.h>
 
 #include "cc/layers/append_quads_data.h"
 #include "cc/quads/render_pass_draw_quad.h"
@@ skipping 54 matching lines @@
     EXPECT_EQ(1u, partially_occluded_count);
   }
 }
 
 TEST(RenderSurfaceLayerImplTest, AppendQuadsWithScaledMask) {
   gfx::Size layer_size(1000, 1000);
   gfx::Size viewport_size(1000, 1000);
   scoped_refptr<FakeRasterSource> raster_source =
       FakeRasterSource::CreateFilledSolidColor(layer_size);
 
-  LayerTestCommon::LayerImplTest impl;
+  LayerTreeSettings settings;
+  settings.layer_transforms_should_scale_layer_contents = true;
+  LayerTestCommon::LayerImplTest impl(settings);
   std::unique_ptr<LayerImpl> root =
       LayerImpl::Create(impl.host_impl()->active_tree(), 2);
   std::unique_ptr<LayerImpl> surface =
       LayerImpl::Create(impl.host_impl()->active_tree(), 3);
   surface->SetBounds(layer_size);
   surface->test_properties()->force_render_surface = true;
 
   gfx::Transform scale;
   scale.Scale(2, 2);
   surface->test_properties()->transform = scale;
@@ skipping 29 matching lines @@
 
   DCHECK(render_pass->quad_list.front());
   const RenderPassDrawQuad* quad =
       RenderPassDrawQuad::MaterialCast(render_pass->quad_list.front());
   EXPECT_EQ(gfx::RectF(0, 0, 1, 1), quad->mask_uv_rect);
   EXPECT_EQ(gfx::Vector2dF(2.f, 2.f), quad->filters_scale);
 }
 
 }  // namespace
 }  // namespace cc