cc: Pass Occlusion instead of OcclusionTracker to LayerImpls

cc/layers/nine_patch_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 "base/containers/hash_tables.h"
 #include "cc/layers/append_quads_data.h"
 #include "cc/layers/nine_patch_layer_impl.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_client.h"
@@ skipping 17 matching lines @@
                    gfx::ToRoundedInt(rect_f.width()),
                    gfx::ToRoundedInt(rect_f.height()));
 }
 
 void NinePatchLayerLayoutTest(const gfx::Size& bitmap_size,
                               const gfx::Rect& aperture_rect,
                               const gfx::Size& layer_size,
                               const gfx::Rect& border,
                               bool fill_center,
                               size_t expected_quad_size) {
-  MockOcclusionTracker<LayerImpl> occlusion_tracker;
   scoped_ptr<RenderPass> render_pass = RenderPass::Create();
   gfx::Rect visible_content_rect(layer_size);
   gfx::Rect expected_remaining(border.x(),
                                border.y(),
                                layer_size.width() - border.width(),
                                layer_size.height() - border.height());
 
   FakeImplProxy proxy;
   TestSharedBitmapManager shared_bitmap_manager;
   FakeUIResourceLayerTreeHostImpl host_impl(&proxy, &shared_bitmap_manager);
   scoped_ptr<NinePatchLayerImpl> layer =
       NinePatchLayerImpl::Create(host_impl.active_tree(), 1);
   layer->draw_properties().visible_content_rect = visible_content_rect;
   layer->SetBounds(layer_size);
   layer->SetContentBounds(layer_size);
   layer->CreateRenderSurface();
   layer->draw_properties().render_target = layer.get();
 
   UIResourceId uid = 1;
   bool is_opaque = false;
   UIResourceBitmap bitmap(bitmap_size, is_opaque);
 
   host_impl.CreateUIResource(uid, bitmap);
   layer->SetUIResourceId(uid);
   layer->SetImageBounds(bitmap_size);
   layer->SetLayout(aperture_rect, border, fill_center);
   AppendQuadsData data;
-  layer->AppendQuads(render_pass.get(), occlusion_tracker, &data);
+  layer->AppendQuads(render_pass.get(), Occlusion(), &data);
 
   // Verify quad rects
   const QuadList& quads = render_pass->quad_list;
   EXPECT_EQ(expected_quad_size, quads.size());
 
   Region remaining(visible_content_rect);
   for (auto iter = quads.cbegin(); iter != quads.cend(); ++iter) {
     gfx::Rect quad_rect = iter->rect;
 
     EXPECT_TRUE(visible_content_rect.Contains(quad_rect)) << iter.index();
@@ skipping 190 matching lines @@
         impl.quad_list(), occluded, &partially_occluded_count);
     // The layer outputs nine quads, three of which are partially occluded, and
     // three fully occluded.
     EXPECT_EQ(6u, impl.quad_list().size());
     EXPECT_EQ(3u, partially_occluded_count);
   }
 }
 
 }  // namespace
 }  // namespace cc