Remove parts of //cc we aren't using

cc/layers/painted_scrollbar_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/painted_scrollbar_layer_impl.h"
-
-#include "cc/quads/draw_quad.h"
-#include "cc/test/layer_test_common.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace cc {
-namespace {
-
-TEST(PaintedScrollbarLayerImplTest, Occlusion) {
-  gfx::Size layer_size(10, 1000);
-  float scale = 2.f;
-  gfx::Size scaled_layer_size(20, 2000);
-  gfx::Size viewport_size(1000, 1000);
-
-  LayerTestCommon::LayerImplTest impl;
-
-  SkBitmap thumb_sk_bitmap;
-  thumb_sk_bitmap.allocN32Pixels(10, 10);
-  thumb_sk_bitmap.setImmutable();
-  UIResourceId thumb_uid = 5;
-  UIResourceBitmap thumb_bitmap(thumb_sk_bitmap);
-  impl.host_impl()->CreateUIResource(thumb_uid, thumb_bitmap);
-
-  SkBitmap track_sk_bitmap;
-  track_sk_bitmap.allocN32Pixels(10, 10);
-  track_sk_bitmap.setImmutable();
-  UIResourceId track_uid = 6;
-  UIResourceBitmap track_bitmap(track_sk_bitmap);
-  impl.host_impl()->CreateUIResource(track_uid, track_bitmap);
-
-  ScrollbarOrientation orientation = VERTICAL;
-
-  PaintedScrollbarLayerImpl* scrollbar_layer_impl =
-      impl.AddChildToRoot<PaintedScrollbarLayerImpl>(orientation);
-  scrollbar_layer_impl->SetBounds(layer_size);
-  scrollbar_layer_impl->SetContentBounds(layer_size);
-  scrollbar_layer_impl->SetContentsOpaque(true);
-  scrollbar_layer_impl->set_internal_contents_scale_and_bounds(
-      scale, scaled_layer_size);
-  scrollbar_layer_impl->SetDrawsContent(true);
-  scrollbar_layer_impl->SetThumbThickness(layer_size.width());
-  scrollbar_layer_impl->SetThumbLength(500);
-  scrollbar_layer_impl->SetTrackLength(layer_size.height());
-  scrollbar_layer_impl->SetCurrentPos(100.f / 4);
-  scrollbar_layer_impl->SetMaximum(100);
-  scrollbar_layer_impl->SetVisibleToTotalLengthRatio(1.f / 2);
-  scrollbar_layer_impl->set_track_ui_resource_id(track_uid);
-  scrollbar_layer_impl->set_thumb_ui_resource_id(thumb_uid);
-
-  impl.CalcDrawProps(viewport_size);
-
-  gfx::Rect thumb_rect = scrollbar_layer_impl->ComputeThumbQuadRect();
-  EXPECT_EQ(gfx::Rect(0, 500 / 4, 10, layer_size.height() / 2).ToString(),
-            thumb_rect.ToString());
-
-  {
-    SCOPED_TRACE("No occlusion");
-    gfx::Rect occluded;
-    impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
-
-    size_t partially_occluded_count = 0;
-    LayerTestCommon::VerifyQuadsAreOccluded(
-        impl.quad_list(), occluded, &partially_occluded_count);
-    EXPECT_EQ(2u, impl.quad_list().size());
-    EXPECT_EQ(0u, partially_occluded_count);
-
-    // Note: this is also testing that the thumb and track are both
-    // scaled by the internal contents scale.  It's not occlusion-related
-    // but is easy to verify here.
-    const DrawQuad* thumb_quad = impl.quad_list().ElementAt(0);
-    const DrawQuad* track_quad = impl.quad_list().ElementAt(1);
-
-    gfx::Rect scaled_thumb_rect = gfx::ScaleToEnclosingRect(thumb_rect, scale);
-    EXPECT_EQ(track_quad->rect.ToString(),
-              gfx::Rect(scaled_layer_size).ToString());
-    EXPECT_EQ(track_quad->opaque_rect.ToString(),
-              gfx::Rect(scaled_layer_size).ToString());
-    EXPECT_EQ(track_quad->visible_rect.ToString(),
-              gfx::Rect(scaled_layer_size).ToString());
-    EXPECT_EQ(thumb_quad->rect.ToString(), scaled_thumb_rect.ToString());
-    EXPECT_EQ(thumb_quad->visible_rect.ToString(),
-              scaled_thumb_rect.ToString());
-  }
-
-  {
-    SCOPED_TRACE("Full occlusion");
-    gfx::Rect occluded(scrollbar_layer_impl->visible_content_rect());
-    impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
-
-    LayerTestCommon::VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
-    EXPECT_EQ(impl.quad_list().size(), 0u);
-  }
-
-  {
-    SCOPED_TRACE("Partial occlusion");
-    gfx::Rect occluded(0, 0, 5, 1000);
-    impl.AppendQuadsWithOcclusion(scrollbar_layer_impl, occluded);
-
-    size_t partially_occluded_count = 0;
-    LayerTestCommon::VerifyQuadsAreOccluded(
-        impl.quad_list(), occluded, &partially_occluded_count);
-    // The layer outputs two quads, which is partially occluded.
-    EXPECT_EQ(2u, impl.quad_list().size());
-    EXPECT_EQ(2u, partially_occluded_count);
-  }
-}
-
-}  // namespace
-}  // namespace cc