Update from https://crrev.com/316786

cc/layers/tiled_layer_impl_unittest.cc

 // Copyright 2012 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/tiled_layer_impl.h"
 
 #include "cc/layers/append_quads_data.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/resources/layer_tiling_data.h"
 #include "cc/test/fake_impl_proxy.h"
@@ skipping 53 matching lines @@
                 const gfx::Size& tile_size,
                 const gfx::Size& layer_size,
                 LayerTilingData::BorderTexelOption border_texel_option,
                 const gfx::Rect& visible_content_rect) {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayer(tile_size, layer_size, border_texel_option);
     layer->draw_properties().visible_content_rect = visible_content_rect;
     layer->SetBounds(layer_size);
 
     AppendQuadsData data;
-    layer->AppendQuads(render_pass, Occlusion(), &data);
+    layer->AppendQuads(render_pass, &data);
   }
 
  protected:
   FakeImplProxy proxy_;
   TestSharedBitmapManager shared_bitmap_manager_;
   FakeLayerTreeHostImpl host_impl_;
 };
 
 TEST_F(TiledLayerImplTest, EmptyQuadList) {
   gfx::Size tile_size(90, 90);
   int num_tiles_x = 8;
   int num_tiles_y = 4;
   gfx::Size layer_size(tile_size.width() * num_tiles_x,
                        tile_size.height() * num_tiles_y);
 
   // Verify default layer does creates quads
   {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
-    layer->AppendQuads(render_pass.get(), Occlusion(), &data);
+    layer->AppendQuads(render_pass.get(), &data);
     layer->DidDraw(nullptr);
     unsigned num_tiles = num_tiles_x * num_tiles_y;
     EXPECT_EQ(render_pass->quad_list.size(), num_tiles);
   }
 
   // Layer with empty visible layer rect produces no quads
   {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
     layer->draw_properties().visible_content_rect = gfx::Rect();
 
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     EXPECT_FALSE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
   }
 
   // Layer with non-intersecting visible layer rect produces no quads
   {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 
     gfx::Rect outside_bounds(-100, -100, 50, 50);
     layer->draw_properties().visible_content_rect = outside_bounds;
 
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
     EXPECT_TRUE(layer->WillDraw(DRAW_MODE_HARDWARE, nullptr));
-    layer->AppendQuads(render_pass.get(), Occlusion(), &data);
+    layer->AppendQuads(render_pass.get(), &data);
     layer->DidDraw(nullptr);
     EXPECT_EQ(render_pass->quad_list.size(), 0u);
   }
 
   // Layer with skips draw produces no quads
   {
     scoped_ptr<TiledLayerImpl> layer =
         CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
     layer->set_skips_draw(true);
 
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
-    layer->AppendQuads(render_pass.get(), Occlusion(), &data);
+    layer->AppendQuads(render_pass.get(), &data);
     EXPECT_EQ(render_pass->quad_list.size(), 0u);
   }
 }
 
 TEST_F(TiledLayerImplTest, Checkerboarding) {
   gfx::Size tile_size(10, 10);
   int num_tiles_x = 2;
   int num_tiles_y = 2;
   gfx::Size layer_size(tile_size.width() * num_tiles_x,
                        tile_size.height() * num_tiles_y);
 
   scoped_ptr<TiledLayerImpl> layer =
       CreateLayer(tile_size, layer_size, LayerTilingData::NO_BORDER_TEXELS);
 
   // No checkerboarding
   {
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
-    layer->AppendQuads(render_pass.get(), Occlusion(), &data);
+    layer->AppendQuads(render_pass.get(), &data);
     EXPECT_EQ(render_pass->quad_list.size(), 4u);
     EXPECT_EQ(0u, data.num_missing_tiles);
 
     for (const auto& quad : render_pass->quad_list)
       EXPECT_EQ(quad->material, DrawQuad::TILED_CONTENT);
   }
 
   for (int i = 0; i < num_tiles_x; ++i)
     for (int j = 0; j < num_tiles_y; ++j)
       layer->PushTileProperties(i, j, 0, false);
 
   // All checkerboarding
   {
     scoped_ptr<RenderPass> render_pass = RenderPass::Create();
 
     AppendQuadsData data;
-    layer->AppendQuads(render_pass.get(), Occlusion(), &data);
+    layer->AppendQuads(render_pass.get(), &data);
     EXPECT_LT(0u, data.num_missing_tiles);
     EXPECT_EQ(render_pass->quad_list.size(), 4u);
     for (const auto& quad : render_pass->quad_list)
       EXPECT_NE(quad->material, DrawQuad::TILED_CONTENT);
   }
 }
 
 // Test with both border texels and without.
 #define WITH_AND_WITHOUT_BORDER_TEST(text_fixture_name)                        \
   TEST_F(TiledLayerImplBorderTest, text_fixture_name##NoBorders) {             \
@@ skipping 177 matching lines @@
     LayerTestCommon::VerifyQuadsAreOccluded(
         impl.quad_list(), occluded, &partially_occluded_count);
     // The layer outputs one quad, which is partially occluded.
     EXPECT_EQ(100u - 10u, impl.quad_list().size());
     EXPECT_EQ(10u + 10u, partially_occluded_count);
   }
 }
 
 }  // namespace
 }  // namespace cc