cc: Move files out of cc/resources/.

cc/resources/picture_layer_tiling_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 <limits>
-#include <set>
-
-#include "cc/base/math_util.h"
-#include "cc/resources/picture_layer_tiling.h"
-#include "cc/resources/picture_layer_tiling_set.h"
-#include "cc/test/fake_output_surface.h"
-#include "cc/test/fake_output_surface_client.h"
-#include "cc/test/fake_picture_layer_tiling_client.h"
-#include "cc/test/fake_picture_pile_impl.h"
-#include "cc/test/test_context_provider.h"
-#include "cc/test/test_shared_bitmap_manager.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "ui/gfx/geometry/quad_f.h"
-#include "ui/gfx/geometry/rect_conversions.h"
-#include "ui/gfx/geometry/size_conversions.h"
-
-namespace cc {
-namespace {
-
-static gfx::Rect ViewportInLayerSpace(
-    const gfx::Transform& transform,
-    const gfx::Size& device_viewport) {
-
-  gfx::Transform inverse;
-  if (!transform.GetInverse(&inverse))
-    return gfx::Rect();
-
-  gfx::RectF viewport_in_layer_space = MathUtil::ProjectClippedRect(
-      inverse, gfx::RectF(gfx::Point(0, 0), device_viewport));
-  return ToEnclosingRect(viewport_in_layer_space);
-}
-
-class TestablePictureLayerTiling : public PictureLayerTiling {
- public:
-  using PictureLayerTiling::SetLiveTilesRect;
-  using PictureLayerTiling::TileAt;
-
-  static scoped_ptr<TestablePictureLayerTiling> Create(
-      WhichTree tree,
-      float contents_scale,
-      scoped_refptr<RasterSource> raster_source,
-      PictureLayerTilingClient* client,
-      const LayerTreeSettings& settings) {
-    return make_scoped_ptr(new TestablePictureLayerTiling(
-        tree, contents_scale, raster_source, client,
-        settings.tiling_interest_area_viewport_multiplier,
-        settings.skewport_target_time_in_seconds,
-        settings.skewport_extrapolation_limit_in_content_pixels));
-  }
-
-  gfx::Rect live_tiles_rect() const { return live_tiles_rect_; }
-
-  using PictureLayerTiling::ComputeSkewport;
-  using PictureLayerTiling::RemoveTileAt;
-
- protected:
-  TestablePictureLayerTiling(WhichTree tree,
-                             float contents_scale,
-                             scoped_refptr<RasterSource> raster_source,
-                             PictureLayerTilingClient* client,
-                             float tiling_interest_area_viewport_multiplier,
-                             float skewport_target_time,
-                             int skewport_extrapolation_limit)
-      : PictureLayerTiling(tree,
-                           contents_scale,
-                           raster_source,
-                           client,
-                           tiling_interest_area_viewport_multiplier,
-                           skewport_target_time,
-                           skewport_extrapolation_limit) {}
-};
-
-class PictureLayerTilingIteratorTest : public testing::Test {
- public:
-  PictureLayerTilingIteratorTest() {}
-  ~PictureLayerTilingIteratorTest() override {}
-
-  void Initialize(const gfx::Size& tile_size,
-                  float contents_scale,
-                  const gfx::Size& layer_bounds) {
-    client_.SetTileSize(tile_size);
-    scoped_refptr<FakePicturePileImpl> pile =
-        FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-    tiling_ = TestablePictureLayerTiling::Create(
-        PENDING_TREE, contents_scale, pile, &client_, LayerTreeSettings());
-  }
-
-  void InitializeActive(const gfx::Size& tile_size,
-                        float contents_scale,
-                        const gfx::Size& layer_bounds) {
-    client_.SetTileSize(tile_size);
-    scoped_refptr<FakePicturePileImpl> pile =
-        FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-    tiling_ = TestablePictureLayerTiling::Create(
-        ACTIVE_TREE, contents_scale, pile, &client_, LayerTreeSettings());
-  }
-
-  void SetLiveRectAndVerifyTiles(const gfx::Rect& live_tiles_rect) {
-    tiling_->SetLiveTilesRect(live_tiles_rect);
-
-    std::vector<Tile*> tiles = tiling_->AllTilesForTesting();
-    for (std::vector<Tile*>::iterator iter = tiles.begin();
-         iter != tiles.end();
-         ++iter) {
-      EXPECT_TRUE(live_tiles_rect.Intersects((*iter)->content_rect()));
-    }
-  }
-
-  void VerifyTilesExactlyCoverRect(
-      float rect_scale,
-      const gfx::Rect& request_rect,
-      const gfx::Rect& expect_rect) {
-    EXPECT_TRUE(request_rect.Contains(expect_rect));
-
-    // Iterators are not valid if this ratio is too large (i.e. the
-    // tiling is too high-res for a low-res destination rect.)  This is an
-    // artifact of snapping geometry to integer coordinates and then mapping
-    // back to floating point texture coordinates.
-    float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
-    ASSERT_LE(dest_to_contents_scale, 2.0);
-
-    Region remaining = expect_rect;
-    for (PictureLayerTiling::CoverageIterator
-             iter(tiling_.get(), rect_scale, request_rect);
-         iter;
-         ++iter) {
-      // Geometry cannot overlap previous geometry at all
-      gfx::Rect geometry = iter.geometry_rect();
-      EXPECT_TRUE(expect_rect.Contains(geometry));
-      EXPECT_TRUE(remaining.Contains(geometry));
-      remaining.Subtract(geometry);
-
-      // Sanity check that texture coords are within the texture rect.
-      gfx::RectF texture_rect = iter.texture_rect();
-      EXPECT_GE(texture_rect.x(), 0);
-      EXPECT_GE(texture_rect.y(), 0);
-      EXPECT_LE(texture_rect.right(), client_.TileSize().width());
-      EXPECT_LE(texture_rect.bottom(), client_.TileSize().height());
-    }
-
-    // The entire rect must be filled by geometry from the tiling.
-    EXPECT_TRUE(remaining.IsEmpty());
-  }
-
-  void VerifyTilesExactlyCoverRect(float rect_scale, const gfx::Rect& rect) {
-    VerifyTilesExactlyCoverRect(rect_scale, rect, rect);
-  }
-
-  void VerifyTiles(
-      float rect_scale,
-      const gfx::Rect& rect,
-      base::Callback<void(Tile* tile,
-                          const gfx::Rect& geometry_rect)> callback) {
-    VerifyTiles(tiling_.get(),
-                rect_scale,
-                rect,
-                callback);
-  }
-
-  void VerifyTiles(
-      PictureLayerTiling* tiling,
-      float rect_scale,
-      const gfx::Rect& rect,
-      base::Callback<void(Tile* tile,
-                          const gfx::Rect& geometry_rect)> callback) {
-    Region remaining = rect;
-    for (PictureLayerTiling::CoverageIterator iter(tiling, rect_scale, rect);
-         iter;
-         ++iter) {
-      remaining.Subtract(iter.geometry_rect());
-      callback.Run(*iter, iter.geometry_rect());
-    }
-    EXPECT_TRUE(remaining.IsEmpty());
-  }
-
-  void VerifyTilesCoverNonContainedRect(float rect_scale,
-                                        const gfx::Rect& dest_rect) {
-    float dest_to_contents_scale = tiling_->contents_scale() / rect_scale;
-    gfx::Rect clamped_rect = gfx::ScaleToEnclosingRect(
-        gfx::Rect(tiling_->tiling_size()), 1.f / dest_to_contents_scale);
-    clamped_rect.Intersect(dest_rect);
-    VerifyTilesExactlyCoverRect(rect_scale, dest_rect, clamped_rect);
-  }
-
- protected:
-  FakePictureLayerTilingClient client_;
-  scoped_ptr<TestablePictureLayerTiling> tiling_;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(PictureLayerTilingIteratorTest);
-};
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeDeletesTiles) {
-  // Verifies that a resize with invalidation for newly exposed pixels will
-  // deletes tiles that intersect that invalidation.
-  gfx::Size tile_size(100, 100);
-  gfx::Size original_layer_size(10, 10);
-  InitializeActive(tile_size, 1.f, original_layer_size);
-  SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
-
-  // Tiling only has one tile, since its total size is less than one.
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-
-  // Stop creating tiles so that any invalidations are left as holes.
-  gfx::Size new_layer_size(200, 200);
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateEmptyPileWithDefaultTileSize(new_layer_size);
-
-  Region invalidation =
-      SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
-  tiling_->SetRasterSourceAndResize(pile);
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-  tiling_->Invalidate(invalidation);
-  EXPECT_FALSE(tiling_->TileAt(0, 0));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, CreateMissingTilesStaysInsideLiveRect) {
-  // The tiling has three rows and columns.
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 250));
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // The live tiles rect is at the very edge of the right-most and
-  // bottom-most tiles. Their border pixels would still be inside the live
-  // tiles rect, but the tiles should not exist just for that.
-  int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
-  int bottom = tiling_->TilingDataForTesting().TileBounds(2, 2).y();
-
-  SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
-  EXPECT_FALSE(tiling_->TileAt(2, 0));
-  EXPECT_FALSE(tiling_->TileAt(2, 1));
-  EXPECT_FALSE(tiling_->TileAt(2, 2));
-  EXPECT_FALSE(tiling_->TileAt(1, 2));
-  EXPECT_FALSE(tiling_->TileAt(0, 2));
-
-  // Verify CreateMissingTilesInLiveTilesRect respects this.
-  tiling_->CreateMissingTilesInLiveTilesRect();
-  EXPECT_FALSE(tiling_->TileAt(2, 0));
-  EXPECT_FALSE(tiling_->TileAt(2, 1));
-  EXPECT_FALSE(tiling_->TileAt(2, 2));
-  EXPECT_FALSE(tiling_->TileAt(1, 2));
-  EXPECT_FALSE(tiling_->TileAt(0, 2));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeTilingOverTileBorders) {
-  // The tiling has four rows and three columns.
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // The live tiles rect covers the whole tiling.
-  SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
-
-  // Tiles in the bottom row and right column exist.
-  EXPECT_TRUE(tiling_->TileAt(2, 0));
-  EXPECT_TRUE(tiling_->TileAt(2, 1));
-  EXPECT_TRUE(tiling_->TileAt(2, 2));
-  EXPECT_TRUE(tiling_->TileAt(2, 3));
-  EXPECT_TRUE(tiling_->TileAt(1, 3));
-  EXPECT_TRUE(tiling_->TileAt(0, 3));
-
-  int right = tiling_->TilingDataForTesting().TileBounds(2, 2).x();
-  int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
-
-  // Shrink the tiling so that the last tile row/column is entirely in the
-  // border pixels of the interior tiles. That row/column is removed.
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          gfx::Size(right + 1, bottom + 1));
-  tiling_->SetRasterSourceAndResize(pile);
-  EXPECT_EQ(2, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // The live tiles rect was clamped to the pile size.
-  EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
-
-  // Since the row/column is gone, the tiles should be gone too.
-  EXPECT_FALSE(tiling_->TileAt(2, 0));
-  EXPECT_FALSE(tiling_->TileAt(2, 1));
-  EXPECT_FALSE(tiling_->TileAt(2, 2));
-  EXPECT_FALSE(tiling_->TileAt(2, 3));
-  EXPECT_FALSE(tiling_->TileAt(1, 3));
-  EXPECT_FALSE(tiling_->TileAt(0, 3));
-
-  // Growing outside the current right/bottom tiles border pixels should create
-  // the tiles again, even though the live rect has not changed size.
-  pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-      gfx::Size(right + 2, bottom + 2));
-  tiling_->SetRasterSourceAndResize(pile);
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // Not changed.
-  EXPECT_EQ(gfx::Rect(right + 1, bottom + 1), tiling_->live_tiles_rect());
-
-  // The last row/column tiles are inside the live tiles rect.
-  EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
-      tiling_->TilingDataForTesting().TileBounds(2, 0)));
-  EXPECT_TRUE(gfx::Rect(right + 1, bottom + 1).Intersects(
-      tiling_->TilingDataForTesting().TileBounds(0, 3)));
-
-  EXPECT_TRUE(tiling_->TileAt(2, 0));
-  EXPECT_TRUE(tiling_->TileAt(2, 1));
-  EXPECT_TRUE(tiling_->TileAt(2, 2));
-  EXPECT_TRUE(tiling_->TileAt(2, 3));
-  EXPECT_TRUE(tiling_->TileAt(1, 3));
-  EXPECT_TRUE(tiling_->TileAt(0, 3));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverTileBorders) {
-  // The tiling has three rows and columns.
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // The live tiles rect covers the whole tiling.
-  SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
-
-  // Tiles in the bottom row and right column exist.
-  EXPECT_TRUE(tiling_->TileAt(2, 0));
-  EXPECT_TRUE(tiling_->TileAt(2, 1));
-  EXPECT_TRUE(tiling_->TileAt(2, 2));
-  EXPECT_TRUE(tiling_->TileAt(2, 3));
-  EXPECT_TRUE(tiling_->TileAt(1, 3));
-  EXPECT_TRUE(tiling_->TileAt(0, 3));
-
-  // Shrink the live tiles rect to the very edge of the right-most and
-  // bottom-most tiles. Their border pixels would still be inside the live
-  // tiles rect, but the tiles should not exist just for that.
-  int right = tiling_->TilingDataForTesting().TileBounds(2, 3).x();
-  int bottom = tiling_->TilingDataForTesting().TileBounds(2, 3).y();
-
-  SetLiveRectAndVerifyTiles(gfx::Rect(right, bottom));
-  EXPECT_FALSE(tiling_->TileAt(2, 0));
-  EXPECT_FALSE(tiling_->TileAt(2, 1));
-  EXPECT_FALSE(tiling_->TileAt(2, 2));
-  EXPECT_FALSE(tiling_->TileAt(2, 3));
-  EXPECT_FALSE(tiling_->TileAt(1, 3));
-  EXPECT_FALSE(tiling_->TileAt(0, 3));
-
-  // Including the bottom row and right column again, should create the tiles.
-  SetLiveRectAndVerifyTiles(gfx::Rect(right + 1, bottom + 1));
-  EXPECT_TRUE(tiling_->TileAt(2, 0));
-  EXPECT_TRUE(tiling_->TileAt(2, 1));
-  EXPECT_TRUE(tiling_->TileAt(2, 2));
-  EXPECT_TRUE(tiling_->TileAt(2, 3));
-  EXPECT_TRUE(tiling_->TileAt(1, 2));
-  EXPECT_TRUE(tiling_->TileAt(0, 2));
-
-  // Shrink the live tiles rect to the very edge of the left-most and
-  // top-most tiles. Their border pixels would still be inside the live
-  // tiles rect, but the tiles should not exist just for that.
-  int left = tiling_->TilingDataForTesting().TileBounds(0, 0).right();
-  int top = tiling_->TilingDataForTesting().TileBounds(0, 0).bottom();
-
-  SetLiveRectAndVerifyTiles(gfx::Rect(left, top, 250 - left, 350 - top));
-  EXPECT_FALSE(tiling_->TileAt(0, 3));
-  EXPECT_FALSE(tiling_->TileAt(0, 2));
-  EXPECT_FALSE(tiling_->TileAt(0, 1));
-  EXPECT_FALSE(tiling_->TileAt(0, 0));
-  EXPECT_FALSE(tiling_->TileAt(1, 0));
-  EXPECT_FALSE(tiling_->TileAt(2, 0));
-
-  // Including the top row and left column again, should create the tiles.
-  SetLiveRectAndVerifyTiles(
-      gfx::Rect(left - 1, top - 1, 250 - left, 350 - top));
-  EXPECT_TRUE(tiling_->TileAt(0, 3));
-  EXPECT_TRUE(tiling_->TileAt(0, 2));
-  EXPECT_TRUE(tiling_->TileAt(0, 1));
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-  EXPECT_TRUE(tiling_->TileAt(1, 0));
-  EXPECT_TRUE(tiling_->TileAt(2, 0));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeLiveTileRectOverSameTiles) {
-  // The tiling has four rows and three columns.
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(250, 350));
-  EXPECT_EQ(3, tiling_->TilingDataForTesting().num_tiles_x());
-  EXPECT_EQ(4, tiling_->TilingDataForTesting().num_tiles_y());
-
-  // The live tiles rect covers the whole tiling.
-  SetLiveRectAndVerifyTiles(gfx::Rect(250, 350));
-
-  // All tiles exist.
-  for (int i = 0; i < 3; ++i) {
-    for (int j = 0; j < 4; ++j)
-      EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
-  }
-
-  // Shrink the live tiles rect, but still cover all the tiles.
-  SetLiveRectAndVerifyTiles(gfx::Rect(1, 1, 249, 349));
-
-  // All tiles still exist.
-  for (int i = 0; i < 3; ++i) {
-    for (int j = 0; j < 4; ++j)
-      EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
-  }
-
-  // Grow the live tiles rect, but still cover all the same tiles.
-  SetLiveRectAndVerifyTiles(gfx::Rect(0, 0, 250, 350));
-
-  // All tiles still exist.
-  for (int i = 0; i < 3; ++i) {
-    for (int j = 0; j < 4; ++j)
-      EXPECT_TRUE(tiling_->TileAt(i, j)) << i << "," << j;
-  }
-}
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeOverBorderPixelsDeletesTiles) {
-  // Verifies that a resize with invalidation for newly exposed pixels will
-  // deletes tiles that intersect that invalidation.
-  gfx::Size tile_size(100, 100);
-  gfx::Size original_layer_size(99, 99);
-  InitializeActive(tile_size, 1.f, original_layer_size);
-  SetLiveRectAndVerifyTiles(gfx::Rect(original_layer_size));
-
-  // Tiling only has one tile, since its total size is less than one.
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-
-  // Stop creating tiles so that any invalidations are left as holes.
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateEmptyPileWithDefaultTileSize(
-          gfx::Size(200, 200));
-  tiling_->SetRasterSourceAndResize(pile);
-
-  Region invalidation =
-      SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
-  EXPECT_TRUE(tiling_->TileAt(0, 0));
-  tiling_->Invalidate(invalidation);
-  EXPECT_FALSE(tiling_->TileAt(0, 0));
-
-  // The original tile was the same size after resize, but it would include new
-  // border pixels.
-  EXPECT_EQ(gfx::Rect(original_layer_size),
-            tiling_->TilingDataForTesting().TileBounds(0, 0));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, LiveTilesExactlyCoverLiveTileRect) {
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
-  SetLiveRectAndVerifyTiles(gfx::Rect(100, 100));
-  SetLiveRectAndVerifyTiles(gfx::Rect(101, 99));
-  SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
-  SetLiveRectAndVerifyTiles(gfx::Rect(1, 801));
-  SetLiveRectAndVerifyTiles(gfx::Rect(1099, 1));
-  SetLiveRectAndVerifyTiles(gfx::Rect(201, 800));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsNoScale) {
-  Initialize(gfx::Size(100, 100), 1.f, gfx::Size(1099, 801));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect());
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1099, 801));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(52, 83, 789, 412));
-
-  // With borders, a size of 3x3 = 1 pixel of content.
-  Initialize(gfx::Size(3, 3), 1.f, gfx::Size(10, 10));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsTilingScale) {
-  Initialize(gfx::Size(200, 100), 2.0f, gfx::Size(1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect());
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
-
-  Initialize(gfx::Size(3, 3), 2.0f, gfx::Size(10, 10));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect());
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1, 1));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 2, 2));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(1, 1, 2, 2));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(3, 2, 5, 2));
-
-  Initialize(gfx::Size(100, 200), 0.5f, gfx::Size(1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
-
-  Initialize(gfx::Size(150, 250), 0.37f, gfx::Size(1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
-
-  Initialize(gfx::Size(312, 123), 0.01f, gfx::Size(1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(0, 0, 1005, 2010));
-  VerifyTilesExactlyCoverRect(1, gfx::Rect(50, 112, 512, 381));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, IteratorCoversLayerBoundsBothScale) {
-  Initialize(gfx::Size(50, 50), 4.0f, gfx::Size(800, 600));
-  VerifyTilesExactlyCoverRect(2.0f, gfx::Rect());
-  VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(0, 0, 1600, 1200));
-  VerifyTilesExactlyCoverRect(2.0f, gfx::Rect(512, 365, 253, 182));
-
-  float scale = 6.7f;
-  gfx::Size bounds(800, 600);
-  gfx::Rect full_rect(gfx::ToCeiledSize(gfx::ScaleSize(bounds, scale)));
-  Initialize(gfx::Size(256, 512), 5.2f, bounds);
-  VerifyTilesExactlyCoverRect(scale, full_rect);
-  VerifyTilesExactlyCoverRect(scale, gfx::Rect(2014, 1579, 867, 1033));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, IteratorEmptyRect) {
-  Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
-
-  gfx::Rect empty;
-  PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1.0f, empty);
-  EXPECT_FALSE(iter);
-}
-
-TEST_F(PictureLayerTilingIteratorTest, NonIntersectingRect) {
-  Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(800, 600));
-  gfx::Rect non_intersecting(1000, 1000, 50, 50);
-  PictureLayerTiling::CoverageIterator iter(tiling_.get(), 1, non_intersecting);
-  EXPECT_FALSE(iter);
-}
-
-TEST_F(PictureLayerTilingIteratorTest, LayerEdgeTextureCoordinates) {
-  Initialize(gfx::Size(300, 300), 1.0f, gfx::Size(256, 256));
-  // All of these sizes are 256x256, scaled and ceiled.
-  VerifyTilesExactlyCoverRect(1.0f, gfx::Rect(0, 0, 256, 256));
-  VerifyTilesExactlyCoverRect(0.8f, gfx::Rect(0, 0, 205, 205));
-  VerifyTilesExactlyCoverRect(1.2f, gfx::Rect(0, 0, 308, 308));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, NonContainedDestRect) {
-  Initialize(gfx::Size(100, 100), 1.0f, gfx::Size(400, 400));
-
-  // Too large in all dimensions
-  VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, -1000, 2000, 2000));
-  VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, -1000, 2000, 2000));
-  VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, -1000, 2000, 2000));
-
-  // Partially covering content, but too large
-  VerifyTilesCoverNonContainedRect(1.0f, gfx::Rect(-1000, 100, 2000, 100));
-  VerifyTilesCoverNonContainedRect(1.5f, gfx::Rect(-1000, 100, 2000, 100));
-  VerifyTilesCoverNonContainedRect(0.5f, gfx::Rect(-1000, 100, 2000, 100));
-}
-
-TEST(PictureLayerTilingTest, SkewportLimits) {
-  FakePictureLayerTilingClient client;
-
-  gfx::Rect viewport(0, 0, 100, 100);
-  gfx::Size layer_bounds(200, 200);
-
-  client.SetTileSize(gfx::Size(100, 100));
-  LayerTreeSettings settings;
-  settings.skewport_extrapolation_limit_in_content_pixels = 75;
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         settings);
-
-  tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
-
-  // Move viewport down 50 pixels in 0.5 seconds.
-  gfx::Rect down_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
-
-  EXPECT_EQ(0, down_skewport.x());
-  EXPECT_EQ(50, down_skewport.y());
-  EXPECT_EQ(100, down_skewport.width());
-  EXPECT_EQ(175, down_skewport.height());
-  EXPECT_TRUE(down_skewport.Contains(gfx::Rect(0, 50, 100, 100)));
-
-  // Move viewport down 50 and right 10 pixels.
-  gfx::Rect down_right_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
-
-  EXPECT_EQ(10, down_right_skewport.x());
-  EXPECT_EQ(50, down_right_skewport.y());
-  EXPECT_EQ(120, down_right_skewport.width());
-  EXPECT_EQ(175, down_right_skewport.height());
-  EXPECT_TRUE(down_right_skewport.Contains(gfx::Rect(10, 50, 100, 100)));
-
-  // Move viewport left.
-  gfx::Rect left_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(-50, 0, 100, 100));
-
-  EXPECT_EQ(-125, left_skewport.x());
-  EXPECT_EQ(0, left_skewport.y());
-  EXPECT_EQ(175, left_skewport.width());
-  EXPECT_EQ(100, left_skewport.height());
-  EXPECT_TRUE(left_skewport.Contains(gfx::Rect(-50, 0, 100, 100)));
-
-  // Expand viewport.
-  gfx::Rect expand_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(-50, -50, 200, 200));
-
-  // x and y moved by -75 (-50 - 75 = -125).
-  // right side and bottom side moved by 75 [(350 - 125) - (200 - 50) = 75].
-  EXPECT_EQ(-125, expand_skewport.x());
-  EXPECT_EQ(-125, expand_skewport.y());
-  EXPECT_EQ(350, expand_skewport.width());
-  EXPECT_EQ(350, expand_skewport.height());
-  EXPECT_TRUE(expand_skewport.Contains(gfx::Rect(-50, -50, 200, 200)));
-
-  // Expand the viewport past the limit in all directions.
-  gfx::Rect big_expand_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(-500, -500, 1500, 1500));
-
-  EXPECT_EQ(-575, big_expand_skewport.x());
-  EXPECT_EQ(-575, big_expand_skewport.y());
-  EXPECT_EQ(1650, big_expand_skewport.width());
-  EXPECT_EQ(1650, big_expand_skewport.height());
-  EXPECT_TRUE(big_expand_skewport.Contains(gfx::Rect(-500, -500, 1500, 1500)));
-
-  // Shrink the skewport in all directions.
-  gfx::Rect shrink_viewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(0, 0, 100, 100));
-  EXPECT_EQ(0, shrink_viewport.x());
-  EXPECT_EQ(0, shrink_viewport.y());
-  EXPECT_EQ(100, shrink_viewport.width());
-  EXPECT_EQ(100, shrink_viewport.height());
-
-  // Move the skewport really far in one direction.
-  gfx::Rect move_skewport_far =
-      tiling->ComputeSkewport(1.5, gfx::Rect(0, 5000, 100, 100));
-  EXPECT_EQ(0, move_skewport_far.x());
-  EXPECT_EQ(5000, move_skewport_far.y());
-  EXPECT_EQ(100, move_skewport_far.width());
-  EXPECT_EQ(175, move_skewport_far.height());
-  EXPECT_TRUE(move_skewport_far.Contains(gfx::Rect(0, 5000, 100, 100)));
-}
-
-TEST(PictureLayerTilingTest, ComputeSkewport) {
-  FakePictureLayerTilingClient client;
-
-  gfx::Rect viewport(0, 0, 100, 100);
-  gfx::Size layer_bounds(200, 200);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
-
-  // Move viewport down 50 pixels in 0.5 seconds.
-  gfx::Rect down_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(0, 50, 100, 100));
-
-  EXPECT_EQ(0, down_skewport.x());
-  EXPECT_EQ(50, down_skewport.y());
-  EXPECT_EQ(100, down_skewport.width());
-  EXPECT_EQ(200, down_skewport.height());
-
-  // Shrink viewport.
-  gfx::Rect shrink_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(25, 25, 50, 50));
-
-  EXPECT_EQ(25, shrink_skewport.x());
-  EXPECT_EQ(25, shrink_skewport.y());
-  EXPECT_EQ(50, shrink_skewport.width());
-  EXPECT_EQ(50, shrink_skewport.height());
-
-  // Move viewport down 50 and right 10 pixels.
-  gfx::Rect down_right_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(10, 50, 100, 100));
-
-  EXPECT_EQ(10, down_right_skewport.x());
-  EXPECT_EQ(50, down_right_skewport.y());
-  EXPECT_EQ(120, down_right_skewport.width());
-  EXPECT_EQ(200, down_right_skewport.height());
-
-  // Move viewport left.
-  gfx::Rect left_skewport =
-      tiling->ComputeSkewport(1.5, gfx::Rect(-20, 0, 100, 100));
-
-  EXPECT_EQ(-60, left_skewport.x());
-  EXPECT_EQ(0, left_skewport.y());
-  EXPECT_EQ(140, left_skewport.width());
-  EXPECT_EQ(100, left_skewport.height());
-
-  // Expand viewport in 0.2 seconds.
-  gfx::Rect expanded_skewport =
-      tiling->ComputeSkewport(1.2, gfx::Rect(-5, -5, 110, 110));
-
-  EXPECT_EQ(-30, expanded_skewport.x());
-  EXPECT_EQ(-30, expanded_skewport.y());
-  EXPECT_EQ(160, expanded_skewport.width());
-  EXPECT_EQ(160, expanded_skewport.height());
-}
-
-TEST(PictureLayerTilingTest, SkewportThroughUpdateTilePriorities) {
-  FakePictureLayerTilingClient client;
-
-  gfx::Rect viewport(0, 0, 100, 100);
-  gfx::Size layer_bounds(200, 200);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
-
-  // Move viewport down 50 pixels in 0.5 seconds.
-  gfx::Rect viewport_50 = gfx::Rect(0, 50, 100, 100);
-  gfx::Rect skewport_50 = tiling->ComputeSkewport(1.5, viewport_50);
-
-  EXPECT_EQ(gfx::Rect(0, 50, 100, 200), skewport_50);
-  tiling->ComputeTilePriorityRects(viewport_50, 1.f, 1.5, Occlusion());
-
-  gfx::Rect viewport_100 = gfx::Rect(0, 100, 100, 100);
-  gfx::Rect skewport_100 = tiling->ComputeSkewport(2.0, viewport_100);
-
-  EXPECT_EQ(gfx::Rect(0, 100, 100, 200), skewport_100);
-  tiling->ComputeTilePriorityRects(viewport_100, 1.f, 2.0, Occlusion());
-
-  // Advance time, but not the viewport.
-  gfx::Rect result = tiling->ComputeSkewport(2.5, viewport_100);
-  // Since the history did advance, we should still get a skewport but a smaller
-  // one.
-  EXPECT_EQ(gfx::Rect(0, 100, 100, 150), result);
-  tiling->ComputeTilePriorityRects(viewport_100, 1.f, 2.5, Occlusion());
-
-  // Advance time again.
-  result = tiling->ComputeSkewport(3.0, viewport_100);
-  EXPECT_EQ(viewport_100, result);
-  tiling->ComputeTilePriorityRects(viewport_100, 1.f, 3.0, Occlusion());
-
-  // Ensure we have a skewport.
-  gfx::Rect viewport_150 = gfx::Rect(0, 150, 100, 100);
-  gfx::Rect skewport_150 = tiling->ComputeSkewport(3.5, viewport_150);
-  EXPECT_EQ(gfx::Rect(0, 150, 100, 150), skewport_150);
-  tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
-
-  // Advance the viewport, but not the time.
-  gfx::Rect viewport_200 = gfx::Rect(0, 200, 100, 100);
-  gfx::Rect skewport_200 = tiling->ComputeSkewport(3.5, viewport_200);
-  EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
-
-  // Ensure that continued calls with the same value, produce the same skewport.
-  tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
-  EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
-  tiling->ComputeTilePriorityRects(viewport_150, 1.f, 3.5, Occlusion());
-  EXPECT_EQ(gfx::Rect(0, 200, 100, 300), skewport_200);
-
-  tiling->ComputeTilePriorityRects(viewport_200, 1.f, 3.5, Occlusion());
-
-  // This should never happen, but advance the viewport yet again keeping the
-  // time the same.
-  gfx::Rect viewport_250 = gfx::Rect(0, 250, 100, 100);
-  gfx::Rect skewport_250 = tiling->ComputeSkewport(3.5, viewport_250);
-  EXPECT_EQ(viewport_250, skewport_250);
-  tiling->ComputeTilePriorityRects(viewport_250, 1.f, 3.5, Occlusion());
-}
-
-TEST(PictureLayerTilingTest, ViewportDistanceWithScale) {
-  FakePictureLayerTilingClient client;
-
-  gfx::Rect viewport(0, 0, 100, 100);
-  gfx::Size layer_bounds(1500, 1500);
-
-  client.SetTileSize(gfx::Size(10, 10));
-  LayerTreeSettings settings;
-  settings.tiling_interest_area_viewport_multiplier = 10000;
-
-  // Tiling at 0.25 scale: this should create 47x47 tiles of size 10x10.
-  // The reason is that each tile has a one pixel border, so tile at (1, 2)
-  // for instance begins at (8, 16) pixels. So tile at (46, 46) will begin at
-  // (368, 368) and extend to the end of 1500 * 0.25 = 375 edge of the
-  // tiling.
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 0.25f, pile, &client,
-                                         settings);
-  gfx::Rect viewport_in_content_space =
-      gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
-
-  tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  // Compute the soon border.
-  float inset = PictureLayerTiling::CalculateSoonBorderDistance(
-      viewport_in_content_space, 1.0f / 0.25f);
-  gfx::Rect soon_rect_in_content_space = viewport_in_content_space;
-  soon_rect_in_content_space.Inset(-inset, -inset);
-
-  // Sanity checks.
-  for (int i = 0; i < 47; ++i) {
-    for (int j = 0; j < 47; ++j) {
-      EXPECT_TRUE(tiling->TileAt(i, j)) << "i: " << i << " j: " << j;
-    }
-  }
-  for (int i = 0; i < 47; ++i) {
-    EXPECT_FALSE(tiling->TileAt(i, 47)) << "i: " << i;
-    EXPECT_FALSE(tiling->TileAt(47, i)) << "i: " << i;
-  }
-
-  // No movement in the viewport implies that tiles will either be NOW
-  // or EVENTUALLY, with the exception of tiles that are between 0 and 312
-  // pixels away from the viewport, which will be in the SOON bin.
-  bool have_now = false;
-  bool have_eventually = false;
-  bool have_soon = false;
-  for (int i = 0; i < 47; ++i) {
-    for (int j = 0; j < 47; ++j) {
-      Tile* tile = tiling->TileAt(i, j);
-      PrioritizedTile prioritized_tile = prioritized_tiles[tile];
-      TilePriority priority = prioritized_tile.priority();
-
-      gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
-      if (viewport_in_content_space.Intersects(tile_rect)) {
-        EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-        EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-        have_now = true;
-      } else if (soon_rect_in_content_space.Intersects(tile_rect)) {
-        EXPECT_EQ(TilePriority::SOON, priority.priority_bin);
-        have_soon = true;
-      } else {
-        EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin);
-        EXPECT_GT(priority.distance_to_visible, 0.f);
-        have_eventually = true;
-      }
-    }
-  }
-
-  EXPECT_TRUE(have_now);
-  EXPECT_TRUE(have_soon);
-  EXPECT_TRUE(have_eventually);
-
-  // Spot check some distances.
-  // Tile at 5, 1 should begin at 41x9 in content space (without borders),
-  // so the distance to a viewport that ends at 25x25 in content space
-  // should be 17 (41 - 25 + 1). In layer space, then that should be
-  // 17 / 0.25 = 68 pixels.
-
-  // We can verify that the content rect (with borders) is one pixel off
-  // 41,9 8x8 on all sides.
-  EXPECT_EQ(tiling->TileAt(5, 1)->content_rect().ToString(), "40,8 10x10");
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
-  EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
-  EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
-  EXPECT_FLOAT_EQ(40.f, priority.distance_to_visible);
-
-  // Move the viewport down 40 pixels.
-  viewport = gfx::Rect(0, 40, 100, 100);
-  viewport_in_content_space =
-      gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
-  gfx::Rect skewport = tiling->ComputeSkewport(2.0, viewport_in_content_space);
-
-  // Compute the soon border.
-  inset = PictureLayerTiling::CalculateSoonBorderDistance(
-      viewport_in_content_space, 1.0f / 0.25f);
-  soon_rect_in_content_space = viewport_in_content_space;
-  soon_rect_in_content_space.Inset(-inset, -inset);
-
-  EXPECT_EQ(0, skewport.x());
-  EXPECT_EQ(10, skewport.y());
-  EXPECT_EQ(25, skewport.width());
-  EXPECT_EQ(35, skewport.height());
-
-  tiling->ComputeTilePriorityRects(viewport, 1.f, 2.0, Occlusion());
-  prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  have_now = false;
-  have_eventually = false;
-  have_soon = false;
-
-  // Viewport moved, so we expect to find some NOW tiles, some SOON tiles and
-  // some EVENTUALLY tiles.
-  for (int i = 0; i < 47; ++i) {
-    for (int j = 0; j < 47; ++j) {
-      Tile* tile = tiling->TileAt(i, j);
-      TilePriority priority = prioritized_tiles[tile].priority();
-
-      gfx::Rect tile_rect = tiling->TilingDataForTesting().TileBounds(i, j);
-      if (viewport_in_content_space.Intersects(tile_rect)) {
-        EXPECT_EQ(TilePriority::NOW, priority.priority_bin) << "i: " << i
-                                                            << " j: " << j;
-        EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible) << "i: " << i
-                                                           << " j: " << j;
-        have_now = true;
-      } else if (skewport.Intersects(tile_rect) ||
-                 soon_rect_in_content_space.Intersects(tile_rect)) {
-        EXPECT_EQ(TilePriority::SOON, priority.priority_bin) << "i: " << i
-                                                             << " j: " << j;
-        EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
-                                                     << " j: " << j;
-        have_soon = true;
-      } else {
-        EXPECT_EQ(TilePriority::EVENTUALLY, priority.priority_bin)
-            << "i: " << i << " j: " << j;
-        EXPECT_GT(priority.distance_to_visible, 0.f) << "i: " << i
-                                                     << " j: " << j;
-        have_eventually = true;
-      }
-    }
-  }
-
-  EXPECT_TRUE(have_now);
-  EXPECT_TRUE(have_soon);
-  EXPECT_TRUE(have_eventually);
-
-  priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
-  EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
-  EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
-  EXPECT_FLOAT_EQ(4.f, priority.distance_to_visible);
-
-  // Change the underlying layer scale.
-  tiling->ComputeTilePriorityRects(viewport, 2.0f, 3.0, Occlusion());
-  prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
-  EXPECT_FLOAT_EQ(136.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
-  EXPECT_FLOAT_EQ(56.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
-  EXPECT_FLOAT_EQ(8.f, priority.distance_to_visible);
-
-  // Test additional scales.
-  tiling = TestablePictureLayerTiling::Create(ACTIVE_TREE, 0.2f, pile, &client,
-                                              LayerTreeSettings());
-  tiling->ComputeTilePriorityRects(viewport, 1.0f, 4.0, Occlusion());
-  prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
-  EXPECT_FLOAT_EQ(110.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
-  EXPECT_FLOAT_EQ(70.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
-  EXPECT_FLOAT_EQ(60.f, priority.distance_to_visible);
-
-  tiling->ComputeTilePriorityRects(viewport, 0.5f, 5.0, Occlusion());
-  prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  priority = prioritized_tiles[tiling->TileAt(5, 1)].priority();
-  EXPECT_FLOAT_EQ(55.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(2, 5)].priority();
-  EXPECT_FLOAT_EQ(35.f, priority.distance_to_visible);
-
-  priority = prioritized_tiles[tiling->TileAt(3, 4)].priority();
-  EXPECT_FLOAT_EQ(30.f, priority.distance_to_visible);
-}
-
-TEST(PictureLayerTilingTest, ExpandRectEqual) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, -1000, 10000, 10000);
-  int64 target_area = 100 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(in.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectSmaller) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, -1000, 10000, 10000);
-  int64 target_area = 100 * 100;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
-  EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
-  EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
-
-  // |in| represents the visible rect, and |out| represents the eventually rect.
-  // If the eventually rect doesn't contain the visible rect, we will start
-  // losing tiles.
-  EXPECT_TRUE(out.Contains(in));
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectUnbounded) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, -1000, 10000, 10000);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
-  EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
-  EXPECT_EQ(out.width() - in.width(), out.height() - in.height());
-  EXPECT_NEAR(200 * 200, out.width() * out.height(), 100);
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedSmaller) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(50, 60, 40, 30);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedEqual) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds = in;
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchVertical) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(45, 0, 90, 300);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchVertical) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(40, 0, 100, 300);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedSmallerStretchHorizontal) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(0, 55, 180, 190);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedEqualStretchHorizontal) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(0, 50, 180, 200);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedLeft) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(20, -1000, 10000, 10000);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
-  EXPECT_EQ(out.bottom() - in.bottom(), out.right() - in.right());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() - out.height() * 2);
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedRight) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, -1000, 1000+120, 10000);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
-  EXPECT_EQ(out.bottom() - in.bottom(), in.x() - out.x());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() - out.height() * 2);
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedTop) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, 30, 10000, 10000);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
-  EXPECT_EQ(out.right() - in.right(), out.bottom() - in.bottom());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() * 2 - out.height());
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectBoundedBottom) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-1000, -1000, 10000, 1000 + 220);
-  int64 target_area = 200 * 200;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
-  EXPECT_EQ(out.right() - in.right(), in.y() - out.y());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() * 2 - out.height());
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectSquishedHorizontally) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(0, -4000, 100+40+20, 100000);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(20, out.right() - in.right());
-  EXPECT_EQ(40, in.x() - out.x());
-  EXPECT_EQ(out.bottom() - in.bottom(), in.y() - out.y());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() * 2);
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectSquishedVertically) {
-  gfx::Rect in(40, 50, 100, 200);
-  gfx::Rect bounds(-4000, 0, 100000, 200+50+30);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(30, out.bottom() - in.bottom());
-  EXPECT_EQ(50, in.y() - out.y());
-  EXPECT_EQ(out.right() - in.right(), in.x() - out.x());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.height() * 2);
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsFarAway) {
-  gfx::Rect in(400, 500, 100, 200);
-  gfx::Rect bounds(0, 0, 10, 10);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_TRUE(out.IsEmpty());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedFullyCover) {
-  gfx::Rect in(40, 50, 100, 100);
-  gfx::Rect bounds(0, 0, 10, 10);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.ToString(), out.ToString());
-}
-
-TEST(PictureLayerTilingTest, ExpandRectOutOfBoundsExpandedPartlyCover) {
-  gfx::Rect in(600, 600, 100, 100);
-  gfx::Rect bounds(0, 0, 500, 500);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_EQ(bounds.right(), out.right());
-  EXPECT_EQ(bounds.bottom(), out.bottom());
-  EXPECT_LE(out.width() * out.height(), target_area);
-  EXPECT_GT(out.width() * out.height(),
-            target_area - out.width() - out.height());
-  EXPECT_TRUE(bounds.Contains(out));
-}
-
-TEST(PictureLayerTilingTest, EmptyStartingRect) {
-  // If a layer has a non-invertible transform, then the starting rect
-  // for the layer would be empty.
-  gfx::Rect in(40, 40, 0, 0);
-  gfx::Rect bounds(0, 0, 10, 10);
-  int64 target_area = 400 * 400;
-  gfx::Rect out = PictureLayerTiling::ExpandRectEquallyToAreaBoundedBy(
-      in, target_area, bounds, NULL);
-  EXPECT_TRUE(out.IsEmpty());
-}
-
-static void TileExists(bool exists, Tile* tile,
-                       const gfx::Rect& geometry_rect) {
-  EXPECT_EQ(exists, tile != NULL) << geometry_rect.ToString();
-}
-
-TEST_F(PictureLayerTilingIteratorTest, TilesExist) {
-  gfx::Size layer_bounds(1099, 801);
-  Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
-  VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
-
-  tiling_->ComputeTilePriorityRects(
-      gfx::Rect(layer_bounds),  // visible content rect
-      1.f,                      // current contents scale
-      1.0,                      // current frame time
-      Occlusion());
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
-
-  // Make the viewport rect empty. All tiles are killed and become zombies.
-  tiling_->ComputeTilePriorityRects(gfx::Rect(),  // visible content rect
-                                    1.f,          // current contents scale
-                                    2.0,          // current frame time
-                                    Occlusion());
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, TilesExistGiantViewport) {
-  gfx::Size layer_bounds(1099, 801);
-  Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
-  VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
-
-  gfx::Rect giant_rect(-10000000, -10000000, 1000000000, 1000000000);
-
-  tiling_->ComputeTilePriorityRects(
-      gfx::Rect(layer_bounds),  // visible content rect
-      1.f,                      // current contents scale
-      1.0,                      // current frame time
-      Occlusion());
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
-
-  // If the visible content rect is empty, it should still have live tiles.
-  tiling_->ComputeTilePriorityRects(giant_rect,  // visible content rect
-                                    1.f,         // current contents scale
-                                    2.0,         // current frame time
-                                    Occlusion());
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, TilesExistOutsideViewport) {
-  gfx::Size layer_bounds(1099, 801);
-  Initialize(gfx::Size(100, 100), 1.f, layer_bounds);
-  VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
-
-  // This rect does not intersect with the layer, as the layer is outside the
-  // viewport.
-  gfx::Rect viewport_rect(1100, 0, 1000, 1000);
-  EXPECT_FALSE(viewport_rect.Intersects(gfx::Rect(layer_bounds)));
-
-  tiling_->ComputeTilePriorityRects(viewport_rect,  // visible content rect
-                                    1.f,            // current contents scale
-                                    1.0,            // current frame time
-                                    Occlusion());
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, true));
-}
-
-static void TilesIntersectingRectExist(const gfx::Rect& rect,
-                                       bool intersect_exists,
-                                       Tile* tile,
-                                       const gfx::Rect& geometry_rect) {
-  bool intersects = rect.Intersects(geometry_rect);
-  bool expected_exists = intersect_exists ? intersects : !intersects;
-  EXPECT_EQ(expected_exists, tile != NULL)
-      << "Rects intersecting " << rect.ToString() << " should exist. "
-      << "Current tile rect is " << geometry_rect.ToString();
-}
-
-TEST_F(PictureLayerTilingIteratorTest,
-       TilesExistLargeViewportAndLayerWithSmallVisibleArea) {
-  gfx::Size layer_bounds(10000, 10000);
-  client_.SetTileSize(gfx::Size(100, 100));
-  LayerTreeSettings settings;
-  settings.tiling_interest_area_viewport_multiplier = 1;
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
-  tiling_ = TestablePictureLayerTiling::Create(PENDING_TREE, 1.f, pile,
-                                               &client_, settings);
-  VerifyTilesExactlyCoverRect(1.f, gfx::Rect(layer_bounds));
-  VerifyTiles(1.f, gfx::Rect(layer_bounds), base::Bind(&TileExists, false));
-
-  gfx::Rect visible_rect(8000, 8000, 50, 50);
-
-  tiling_->ComputeTilePriorityRects(visible_rect,  // visible content rect
-                                    1.f,           // current contents scale
-                                    1.0,           // current frame time
-                                    Occlusion());
-  VerifyTiles(1.f,
-              gfx::Rect(layer_bounds),
-              base::Bind(&TilesIntersectingRectExist, visible_rect, true));
-}
-
-TEST(ComputeTilePriorityRectsTest, VisibleTiles) {
-  // The TilePriority of visible tiles should have zero distance_to_visible
-  // and time_to_visible.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-}
-
-TEST(ComputeTilePriorityRectsTest, OffscreenTiles) {
-  // The TilePriority of offscreen tiles (without movement) should have nonzero
-  // distance_to_visible and infinite time_to_visible.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  current_screen_transform.Translate(850, 0);
-  last_screen_transform = current_screen_transform;
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  // Furthermore, in this scenario tiles on the right hand side should have a
-  // larger distance to visible.
-  TilePriority left = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  TilePriority right = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
-
-  left = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  right = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(right.distance_to_visible, left.distance_to_visible);
-}
-
-TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenLayer) {
-  // Sanity check that a layer with some tiles visible and others offscreen has
-  // correct TilePriorities for each tile.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  current_screen_transform.Translate(705, 505);
-  last_screen_transform = current_screen_transform;
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-}
-
-TEST(ComputeTilePriorityRectsTest, PartiallyOffscreenRotatedLayer) {
-  // Each tile of a layer may be affected differently by a transform; Check
-  // that ComputeTilePriorityRects correctly accounts for the transform between
-  // layer space and screen space.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  // A diagonally rotated layer that is partially off the bottom of the screen.
-  // In this configuration, only the top-left tile would be visible.
-  current_screen_transform.Translate(600, 750);
-  current_screen_transform.RotateAboutZAxis(45);
-  last_screen_transform = current_screen_transform;
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  // Furthermore, in this scenario the bottom-right tile should have the larger
-  // distance to visible.
-  TilePriority top_left = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  TilePriority top_right = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  TilePriority bottom_right =
-      prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(top_right.distance_to_visible, top_left.distance_to_visible);
-
-  EXPECT_EQ(bottom_right.distance_to_visible, top_right.distance_to_visible);
-}
-
-TEST(ComputeTilePriorityRectsTest, PerspectiveLayer) {
-  // Perspective transforms need to take a different code path.
-  // This test checks tile priorities of a perspective layer.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Rect visible_layer_rect(0, 0, 0, 0);  // offscreen.
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  // A 3d perspective layer rotated about its Y axis, translated to almost
-  // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
-  // the right side, so the top-left tile will technically be closer than the
-  // top-right.
-
-  // Translate layer to offscreen
-  current_screen_transform.Translate(400.0, 630.0);
-  // Apply perspective about the center of the layer
-  current_screen_transform.Translate(100.0, 100.0);
-  current_screen_transform.ApplyPerspectiveDepth(100.0);
-  current_screen_transform.RotateAboutYAxis(10.0);
-  current_screen_transform.Translate(-100.0, -100.0);
-  last_screen_transform = current_screen_transform;
-
-  // Sanity check that this transform wouldn't cause w<0 clipping.
-  bool clipped;
-  MathUtil::MapQuad(current_screen_transform,
-                    gfx::QuadF(gfx::RectF(0, 0, 200, 200)),
-                    &clipped);
-  ASSERT_FALSE(clipped);
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  // All tiles will have a positive distance_to_visible
-  // and an infinite time_to_visible.
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  // Furthermore, in this scenario the top-left distance_to_visible
-  // will be smallest, followed by top-right. The bottom layers
-  // will of course be further than the top layers.
-  TilePriority top_left = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  TilePriority top_right = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  TilePriority bottom_left = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  TilePriority bottom_right =
-      prioritized_tiles[tiling->TileAt(1, 1)].priority();
-
-  EXPECT_GT(bottom_right.distance_to_visible, top_right.distance_to_visible);
-
-  EXPECT_GT(bottom_left.distance_to_visible, top_left.distance_to_visible);
-}
-
-TEST(ComputeTilePriorityRectsTest, PerspectiveLayerClippedByW) {
-  // Perspective transforms need to take a different code path.
-  // This test checks tile priorities of a perspective layer.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double current_frame_time_in_seconds = 1.0;
-
-  // A 3d perspective layer rotated about its Y axis, translated to almost
-  // fully offscreen. The left side will appear closer (i.e. larger in 2d) than
-  // the right side, so the top-left tile will technically be closer than the
-  // top-right.
-
-  // Translate layer to offscreen
-  current_screen_transform.Translate(400.0, 970.0);
-  // Apply perspective and rotation about the center of the layer
-  current_screen_transform.Translate(100.0, 100.0);
-  current_screen_transform.ApplyPerspectiveDepth(10.0);
-  current_screen_transform.RotateAboutYAxis(10.0);
-  current_screen_transform.Translate(-100.0, -100.0);
-  last_screen_transform = current_screen_transform;
-
-  // Sanity check that this transform does cause w<0 clipping for the left side
-  // of the layer, but not the right side.
-  bool clipped;
-  MathUtil::MapQuad(current_screen_transform,
-                    gfx::QuadF(gfx::RectF(0, 0, 100, 200)),
-                    &clipped);
-  ASSERT_TRUE(clipped);
-
-  MathUtil::MapQuad(current_screen_transform,
-                    gfx::QuadF(gfx::RectF(100, 0, 100, 200)),
-                    &clipped);
-  ASSERT_FALSE(clipped);
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         LayerTreeSettings());
-
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  // Left-side tiles will be clipped by the transform, so we have to assume
-  // they are visible just in case.
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  // Right-side tiles will have a positive distance_to_visible
-  // and an infinite time_to_visible.
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_FLOAT_EQ(priority.distance_to_visible, 0.f);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-}
-
-TEST(ComputeTilePriorityRectsTest, BasicMotion) {
-  // Test that time_to_visible is computed correctly when
-  // there is some motion.
-  FakePictureLayerTilingClient client;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Rect visible_layer_rect(0, 0, 0, 0);
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float last_layer_contents_scale = 1.f;
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double last_frame_time_in_seconds = 1.0;
-  double current_frame_time_in_seconds = 2.0;
-
-  // Offscreen layer is coming closer to viewport at 1000 pixels per second.
-  current_screen_transform.Translate(1800, 0);
-  last_screen_transform.Translate(2800, 0);
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-  LayerTreeSettings settings;
-  settings.tiling_interest_area_viewport_multiplier = 10000;
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  scoped_ptr<TestablePictureLayerTiling> tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                         settings);
-
-  // previous ("last") frame
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   last_layer_contents_scale,
-                                   last_frame_time_in_seconds, Occlusion());
-
-  // current frame
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  // time_to_visible for the right hand side layers needs an extra 0.099
-  // seconds because this tile is 99 pixels further away.
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 1)].priority();
-  EXPECT_GT(priority.distance_to_visible, 0.f);
-  EXPECT_NE(TilePriority::NOW, priority.priority_bin);
-}
-
-TEST(ComputeTilePriorityRectsTest, RotationMotion) {
-  // Each tile of a layer may be affected differently by a transform; Check
-  // that ComputeTilePriorityRects correctly accounts for the transform between
-  // layer space and screen space.
-
-  FakePictureLayerTilingClient client;
-  scoped_ptr<TestablePictureLayerTiling> tiling;
-
-  gfx::Size device_viewport(800, 600);
-  gfx::Rect visible_layer_rect(0, 0, 0, 0);  // offscren.
-  gfx::Size last_layer_bounds(200, 200);
-  gfx::Size current_layer_bounds(200, 200);
-  float last_layer_contents_scale = 1.f;
-  float current_layer_contents_scale = 1.f;
-  gfx::Transform last_screen_transform;
-  gfx::Transform current_screen_transform;
-  double last_frame_time_in_seconds = 1.0;
-  double current_frame_time_in_seconds = 2.0;
-
-  // Rotation motion is set up specifically so that:
-  //  - rotation occurs about the center of the layer
-  //  - the top-left tile becomes visible on rotation
-  //  - the top-right tile will have an infinite time_to_visible
-  //    because it is rotating away from viewport.
-  //  - bottom-left layer will have a positive non-zero time_to_visible
-  //    because it is rotating toward the viewport.
-  current_screen_transform.Translate(400, 550);
-  current_screen_transform.RotateAboutZAxis(45);
-
-  last_screen_transform.Translate(400, 550);
-
-  gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
-      current_screen_transform, device_viewport);
-
-  client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          current_layer_bounds);
-  tiling = TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile, &client,
-                                              LayerTreeSettings());
-
-  // previous ("last") frame
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   last_layer_contents_scale,
-                                   last_frame_time_in_seconds, Occlusion());
-
-  // current frame
-  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
-                                   current_layer_contents_scale,
-                                   current_frame_time_in_seconds, Occlusion());
-  auto prioritized_tiles = tiling->UpdateAndGetAllPrioritizedTilesForTesting();
-
-  ASSERT_TRUE(tiling->TileAt(0, 0));
-  ASSERT_TRUE(tiling->TileAt(0, 1));
-  ASSERT_TRUE(tiling->TileAt(1, 0));
-  ASSERT_TRUE(tiling->TileAt(1, 1));
-
-  TilePriority priority = prioritized_tiles[tiling->TileAt(0, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(0, 1)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-
-  priority = prioritized_tiles[tiling->TileAt(1, 0)].priority();
-  EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
-  EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
-}
-
-TEST(PictureLayerTilingTest, RecycledTilesCleared) {
-  // This test performs the following:
-  // Setup:
-  // - Two tilings, one active one recycled with all tiles shared.
-  // Procedure:
-  // - Viewport moves somewhere far away and active tiling clears tiles.
-  // - Viewport moves back and a new active tiling tile is created.
-  // Result:
-  // - Recycle tiling does _not_ have the tile in the same location (thus it
-  //   will be shared next time a pending tiling is created).
-
-  FakePictureLayerTilingClient active_client;
-
-  active_client.SetTileSize(gfx::Size(100, 100));
-  LayerTreeSettings settings;
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          gfx::Size(10000, 10000));
-  scoped_ptr<TestablePictureLayerTiling> active_tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile,
-                                         &active_client, settings);
-  // Create all tiles on this tiling.
-  active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
-                                          Occlusion());
-
-  FakePictureLayerTilingClient recycle_client;
-  recycle_client.SetTileSize(gfx::Size(100, 100));
-  recycle_client.set_twin_tiling(active_tiling.get());
-
-  pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-      gfx::Size(10000, 10000));
-  scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
-      TestablePictureLayerTiling::Create(PENDING_TREE, 1.0f, pile,
-                                         &recycle_client, settings);
-
-  // Create all tiles on the second tiling. All tiles should be shared.
-  recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
-                                           1.0f, Occlusion());
-
-  // Set the second tiling as recycled.
-  active_client.set_twin_tiling(NULL);
-  recycle_client.set_twin_tiling(NULL);
-
-  EXPECT_TRUE(active_tiling->TileAt(0, 0));
-  EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
-
-  // Move the viewport far away from the (0, 0) tile.
-  active_tiling->ComputeTilePriorityRects(gfx::Rect(9000, 9000, 100, 100), 1.0f,
-                                          2.0, Occlusion());
-  // Ensure the tile was deleted.
-  EXPECT_FALSE(active_tiling->TileAt(0, 0));
-  EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
-
-  // Move the viewport back to (0, 0) tile.
-  active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 3.0,
-                                          Occlusion());
-
-  // Ensure that we now have a tile here on both active.
-  EXPECT_TRUE(active_tiling->TileAt(0, 0));
-  EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
-}
-
-TEST(PictureLayerTilingTest, RecycledTilesClearedOnReset) {
-  FakePictureLayerTilingClient active_client;
-  active_client.SetTileSize(gfx::Size(100, 100));
-
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          gfx::Size(100, 100));
-  scoped_ptr<TestablePictureLayerTiling> active_tiling =
-      TestablePictureLayerTiling::Create(ACTIVE_TREE, 1.0f, pile,
-                                         &active_client, LayerTreeSettings());
-  // Create all tiles on this tiling.
-  active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f,
-                                          Occlusion());
-
-  FakePictureLayerTilingClient recycle_client;
-  recycle_client.SetTileSize(gfx::Size(100, 100));
-  recycle_client.set_twin_tiling(active_tiling.get());
-
-  LayerTreeSettings settings;
-
-  pile = FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-      gfx::Size(100, 100));
-  scoped_ptr<TestablePictureLayerTiling> recycle_tiling =
-      TestablePictureLayerTiling::Create(PENDING_TREE, 1.0f, pile,
-                                         &recycle_client, settings);
-
-  // Create all tiles on the recycle tiling. All tiles should be shared.
-  recycle_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f,
-                                           1.0f, Occlusion());
-
-  // Set the second tiling as recycled.
-  active_client.set_twin_tiling(NULL);
-  recycle_client.set_twin_tiling(NULL);
-
-  EXPECT_TRUE(active_tiling->TileAt(0, 0));
-  EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
-
-  // Reset the active tiling. The recycle tiles should be released too.
-  active_tiling->Reset();
-  EXPECT_FALSE(active_tiling->TileAt(0, 0));
-  EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
-}
-
-TEST_F(PictureLayerTilingIteratorTest, ResizeTilesAndUpdateToCurrent) {
-  // The tiling has four rows and three columns.
-  Initialize(gfx::Size(150, 100), 1.f, gfx::Size(250, 150));
-  tiling_->CreateAllTilesForTesting();
-  EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
-  EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
-  EXPECT_EQ(4u, tiling_->AllTilesForTesting().size());
-
-  client_.SetTileSize(gfx::Size(250, 200));
-
-  // Tile size in the tiling should still be 150x100.
-  EXPECT_EQ(150, tiling_->TilingDataForTesting().max_texture_size().width());
-  EXPECT_EQ(100, tiling_->TilingDataForTesting().max_texture_size().height());
-
-  // The layer's size isn't changed, but the tile size was.
-  scoped_refptr<FakePicturePileImpl> pile =
-      FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(
-          gfx::Size(250, 150));
-  tiling_->SetRasterSourceAndResize(pile);
-
-  // Tile size in the tiling should be resized to 250x200.
-  EXPECT_EQ(250, tiling_->TilingDataForTesting().max_texture_size().width());
-  EXPECT_EQ(200, tiling_->TilingDataForTesting().max_texture_size().height());
-  EXPECT_EQ(0u, tiling_->AllTilesForTesting().size());
-}
-
-}  // namespace
-}  // namespace cc