Update from chromium https://crrev.com/304586

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 "cc/resources/picture_layer_tiling.h"
 
 #include <limits>
 #include <set>
 
 #include "cc/base/math_util.h"
@@ skipping 18 matching lines @@
   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);
 }
 
 static void UpdateAllTilePriorities(PictureLayerTilingSet* set,
-                                    WhichTree tree,
                                     const gfx::Rect& visible_layer_rect,
                                     float layer_contents_scale,
                                     double current_frame_time_in_seconds) {
   for (size_t i = 0; i < set->num_tilings(); ++i) {
-    set->tiling_at(i)->ComputeTilePriorityRects(tree,
-                                                visible_layer_rect,
-                                                layer_contents_scale,
-                                                current_frame_time_in_seconds,
-                                                Occlusion());
+    set->tiling_at(i)
+        ->ComputeTilePriorityRects(visible_layer_rect, layer_contents_scale,
+                                   current_frame_time_in_seconds, Occlusion());
   }
 }
 
 class TestablePictureLayerTiling : public PictureLayerTiling {
  public:
   using PictureLayerTiling::SetLiveTilesRect;
   using PictureLayerTiling::TileAt;
 
   static scoped_ptr<TestablePictureLayerTiling> Create(
       float contents_scale,
@@ skipping 145 matching lines @@
   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.
   client_.set_allow_create_tile(false);
 
   Region invalidation =
       SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
-  tiling_->UpdateTilesToCurrentRasterSource(invalidation, gfx::Size(200, 200));
+  tiling_->UpdateTilesToCurrentRasterSource(client_.raster_source(),
+                                            invalidation, gfx::Size(200, 200));
   EXPECT_FALSE(tiling_->TileAt(0, 0));
 }
 
 TEST_F(PictureLayerTilingIteratorTest, CreateMissingTilesStaysInsideLiveRect) {
   // The tiling has three rows and columns.
   Initialize(gfx::Size(100, 100), 1, 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
@@ skipping 34 matching lines @@
   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.
   Region invalidation;
-  tiling_->UpdateTilesToCurrentRasterSource(invalidation,
-                                            gfx::Size(right + 1, bottom + 1));
+  tiling_->UpdateTilesToCurrentRasterSource(
+      client_.raster_source(), invalidation, gfx::Size(right + 1, bottom + 1));
   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.
-  tiling_->UpdateTilesToCurrentRasterSource(invalidation,
-                                            gfx::Size(right + 2, bottom + 2));
+  tiling_->UpdateTilesToCurrentRasterSource(
+      client_.raster_source(), invalidation, gfx::Size(right + 2, bottom + 2));
   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(
@@ skipping 115 matching lines @@
   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.
   client_.set_allow_create_tile(false);
 
   Region invalidation =
       SubtractRegions(gfx::Rect(tile_size), gfx::Rect(original_layer_size));
-  tiling_->UpdateTilesToCurrentRasterSource(invalidation, gfx::Size(200, 200));
+  tiling_->UpdateTilesToCurrentRasterSource(client_.raster_source(),
+                                            invalidation, gfx::Size(200, 200));
   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, gfx::Size(1099, 801));
@@ skipping 101 matching lines @@
   client.set_skewport_extrapolation_limit_in_content_pixels(75);
   client.set_tree(ACTIVE_TREE);
   scoped_ptr<TestablePictureLayerTiling> tiling;
 
   gfx::Rect viewport(0, 0, 100, 100);
   gfx::Size layer_bounds(200, 200);
 
   client.SetTileSize(gfx::Size(100, 100));
   tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client);
 
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.f, 1.0, Occlusion());
+  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)));
@@ skipping 45 matching lines @@
   FakePictureLayerTilingClient client;
   scoped_ptr<TestablePictureLayerTiling> tiling;
 
   gfx::Rect viewport(0, 0, 100, 100);
   gfx::Size layer_bounds(200, 200);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client);
 
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.f, 1.0, Occlusion());
+  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());
 
@@ skipping 46 matching lines @@
 
   // 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.
   tiling = TestablePictureLayerTiling::Create(0.25f, layer_bounds, &client);
   gfx::Rect viewport_in_content_space =
       gfx::ToEnclosedRect(gfx::ScaleRect(viewport, 0.25f));
 
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.f, 1.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.f, 1.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   gfx::Rect soon_rect = viewport;
   soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
   gfx::Rect soon_rect_in_content_space =
       gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f));
 
   // Sanity checks.
   for (int i = 0; i < 47; ++i) {
     for (int j = 0; j < 47; ++j) {
@@ skipping 64 matching lines @@
   soon_rect = viewport;
   soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
   soon_rect_in_content_space =
       gfx::ToEnclosedRect(gfx::ScaleRect(soon_rect, 0.25f));
 
   EXPECT_EQ(0, skewport.x());
   EXPECT_EQ(10, skewport.y());
   EXPECT_EQ(25, skewport.width());
   EXPECT_EQ(35, skewport.height());
 
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.f, 2.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.f, 2.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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) {
@@ skipping 31 matching lines @@
   priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(68.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(28.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(4.f, priority.distance_to_visible);
 
   // Change the underlying layer scale.
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 2.0f, 3.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 2.0f, 3.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(136.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(56.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(8.f, priority.distance_to_visible);
 
   // Test additional scales.
   tiling = TestablePictureLayerTiling::Create(0.2f, layer_bounds, &client);
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.0f, 4.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.0f, 4.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(110.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(70.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(60.f, priority.distance_to_visible);
 
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 0.5f, 5.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 0.5f, 5.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   priority = tiling->TileAt(5, 1)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(55.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(2, 5)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(35.f, priority.distance_to_visible);
 
   priority = tiling->TileAt(3, 4)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(30.f, priority.distance_to_visible);
@@ skipping 228 matching lines @@
   gfx::Rect viewport(50, 50, 100, 100);
   gfx::Size layer_bounds(800, 800);
 
   gfx::Rect soon_rect = viewport;
   soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
 
   client.SetTileSize(gfx::Size(30, 30));
   client.set_tree(ACTIVE_TREE);
 
   tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client);
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.0f, 1.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   PictureLayerTiling::TilingRasterTileIterator empty_iterator;
   EXPECT_FALSE(empty_iterator);
 
   std::vector<Tile*> all_tiles = tiling->AllTilesForTesting();
 
   // Sanity check.
   EXPECT_EQ(841u, all_tiles.size());
 
@@ skipping 84 matching lines @@
   scoped_ptr<TestablePictureLayerTiling> tiling;
 
   gfx::Rect viewport(50, 0, 100, 100);
   gfx::Rect moved_viewport(50, 0, 100, 500);
   gfx::Size layer_bounds(1000, 1000);
 
   client.SetTileSize(gfx::Size(30, 30));
   client.set_tree(ACTIVE_TREE);
 
   tiling = TestablePictureLayerTiling::Create(1.f, layer_bounds, &client);
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, moved_viewport, 1.0f, 2.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.0f, 1.0, Occlusion());
+  tiling->ComputeTilePriorityRects(moved_viewport, 1.0f, 2.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   gfx::Rect soon_rect = moved_viewport;
   soon_rect.Inset(-312.f, -312.f, -312.f, -312.f);
 
   // There are 3 bins in TilePriority.
   bool have_tiles[3] = {};
   Tile* last_tile = NULL;
   int eventually_bin_order_correct_count = 0;
   int eventually_bin_order_incorrect_count = 0;
@@ skipping 51 matching lines @@
   FakePictureLayerTilingClient client(resource_provider.get());
   scoped_ptr<TestablePictureLayerTiling> tiling;
 
   gfx::Rect viewport(50, 50, 100, 100);
   gfx::Size layer_bounds(2000, 2000);
 
   client.SetTileSize(gfx::Size(30, 30));
   client.set_tree(ACTIVE_TREE);
 
   tiling = TestablePictureLayerTiling::Create(1.0f, layer_bounds, &client);
-  tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, viewport, 1.0f, 1.0, Occlusion());
+  tiling->ComputeTilePriorityRects(viewport, 1.0f, 1.0, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   PictureLayerTiling::TilingRasterTileIterator empty_iterator;
   EXPECT_FALSE(empty_iterator);
 
   std::vector<Tile*> all_tiles = tiling->AllTilesForTesting();
 
   PictureLayerTiling::TilingEvictionTileIterator it(
       tiling.get(), SMOOTHNESS_TAKES_PRIORITY, PictureLayerTiling::NOW);
 
@@ skipping 65 matching lines @@
 }
 
 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));
 
   client_.set_tree(ACTIVE_TREE);
   tiling_->ComputeTilePriorityRects(
-      ACTIVE_TREE,
       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(ACTIVE_TREE,
-                                    gfx::Rect(),  // visible content rect
+  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);
 
   client_.set_tree(ACTIVE_TREE);
   tiling_->ComputeTilePriorityRects(
-      ACTIVE_TREE,
       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(ACTIVE_TREE,
-                                    giant_rect,  // visible content rect
+  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)));
 
   client_.set_tree(ACTIVE_TREE);
-  tiling_->ComputeTilePriorityRects(ACTIVE_TREE,
-                                    viewport_rect,  // visible content rect
+  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);
   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 visible_rect(8000, 8000, 50, 50);
 
   client_.set_tree(ACTIVE_TREE);
   set_max_tiles_for_interest_area(1);
-  tiling_->ComputeTilePriorityRects(ACTIVE_TREE,
-                                    visible_rect,  // visible content rect
+  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_F(PictureLayerTilingIteratorTest, AddTilingsToMatchScale) {
   gfx::Size layer_bounds(1099, 801);
   gfx::Size tile_size(100, 100);
 
   client_.SetTileSize(tile_size);
   client_.set_tree(PENDING_TREE);
 
-  PictureLayerTilingSet active_set(&client_);
+  auto active_set = PictureLayerTilingSet::Create(&client_);
 
-  active_set.AddTiling(1.f, layer_bounds);
+  active_set->AddTiling(1.f, layer_bounds);
 
-  VerifyTiles(active_set.tiling_at(0),
-              1.f,
-              gfx::Rect(layer_bounds),
+  VerifyTiles(active_set->tiling_at(0), 1.f, gfx::Rect(layer_bounds),
               base::Bind(&TileExists, false));
 
-  UpdateAllTilePriorities(&active_set,
-                          PENDING_TREE,
+  UpdateAllTilePriorities(active_set.get(),
                           gfx::Rect(layer_bounds),  // visible content rect
                           1.f,                      // current contents scale
                           1.0);                     // current frame time
 
   // The active tiling has tiles now.
-  VerifyTiles(active_set.tiling_at(0),
-              1.f,
-              gfx::Rect(layer_bounds),
+  VerifyTiles(active_set->tiling_at(0), 1.f, gfx::Rect(layer_bounds),
               base::Bind(&TileExists, true));
 
   // Add the same tilings to the pending set.
-  PictureLayerTilingSet pending_set(&client_);
+  auto pending_set = PictureLayerTilingSet::Create(&client_);
   Region invalidation;
-  pending_set.SyncTilings(active_set, layer_bounds, invalidation, 0.f);
+  pending_set->SyncTilings(*active_set, layer_bounds, invalidation, 0.f,
+                           client_.raster_source());
 
   // The pending tiling starts with no tiles.
-  VerifyTiles(pending_set.tiling_at(0),
-              1.f,
-              gfx::Rect(layer_bounds),
+  VerifyTiles(pending_set->tiling_at(0), 1.f, gfx::Rect(layer_bounds),
               base::Bind(&TileExists, false));
 
   // ComputeTilePriorityRects on the pending tiling at the same frame time. The
   // pending tiling should get tiles.
-  UpdateAllTilePriorities(&pending_set,
-                          PENDING_TREE,
+  UpdateAllTilePriorities(pending_set.get(),
                           gfx::Rect(layer_bounds),  // visible content rect
                           1.f,                      // current contents scale
                           1.0);                     // current frame time
 
-  VerifyTiles(pending_set.tiling_at(0),
-              1.f,
-              gfx::Rect(layer_bounds),
+  VerifyTiles(pending_set->tiling_at(0), 1.f, gfx::Rect(layer_bounds),
               base::Bind(&TileExists, true));
 }
 
 TEST(ComputeTilePriorityRectsTest, VisibleTiles) {
   // The TilePriority of visible tiles should have zero distance_to_visible
   // and time_to_visible.
 
   FakePictureLayerTilingClient client;
   scoped_ptr<TestablePictureLayerTiling> tiling;
 
   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));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
@@ skipping 31 matching lines @@
 
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_GT(priority.distance_to_visible, 0.f);
   EXPECT_NE(TilePriority::NOW, priority.priority_bin);
@@ skipping 41 matching lines @@
 
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_FLOAT_EQ(TilePriority::NOW, priority.priority_bin);
@@ skipping 35 matching lines @@
 
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
@@ skipping 59 matching lines @@
 
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
@@ skipping 69 matching lines @@
 
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
@@ skipping 40 matching lines @@
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
   // previous ("last") frame
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    last_layer_contents_scale,
-                                   last_frame_time_in_seconds,
-                                   Occlusion());
+                                   last_frame_time_in_seconds, Occlusion());
 
   // current frame
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_GT(priority.distance_to_visible, 0.f);
   EXPECT_NE(TilePriority::NOW, priority.priority_bin);
@@ skipping 47 matching lines @@
   gfx::Rect viewport_in_layer_space = ViewportInLayerSpace(
       current_screen_transform, device_viewport);
 
   client.SetTileSize(gfx::Size(100, 100));
   client.set_tree(ACTIVE_TREE);
   tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                               current_layer_bounds,
                                               &client);
 
   // previous ("last") frame
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    last_layer_contents_scale,
-                                   last_frame_time_in_seconds,
-                                   Occlusion());
+                                   last_frame_time_in_seconds, Occlusion());
 
   // current frame
-  tiling->ComputeTilePriorityRects(ACTIVE_TREE,
-                                   viewport_in_layer_space,
+  tiling->ComputeTilePriorityRects(viewport_in_layer_space,
                                    current_layer_contents_scale,
-                                   current_frame_time_in_seconds,
-                                   Occlusion());
+                                   current_frame_time_in_seconds, Occlusion());
   tiling->UpdateAllTilePrioritiesForTesting();
 
   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 = tiling->TileAt(0, 0)->priority(ACTIVE_TREE);
   EXPECT_FLOAT_EQ(0.f, priority.distance_to_visible);
   EXPECT_EQ(TilePriority::NOW, priority.priority_bin);
@@ skipping 21 matching lines @@
   FakePictureLayerTilingClient active_client;
   scoped_ptr<TestablePictureLayerTiling> active_tiling;
 
   active_client.SetTileSize(gfx::Size(100, 100));
   active_client.set_tree(ACTIVE_TREE);
   active_client.set_max_tiles_for_interest_area(10);
   active_tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                                      gfx::Size(10000, 10000),
                                                      &active_client);
   // Create all tiles on this tiling.
-  active_tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f, Occlusion());
+  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_tree(PENDING_TREE);
   recycle_client.set_twin_tiling(active_tiling.get());
   recycle_client.set_max_tiles_for_interest_area(10);
 
   scoped_ptr<TestablePictureLayerTiling> recycle_tiling;
   recycle_tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                                       gfx::Size(10000, 10000),
                                                       &recycle_client);
 
   // Create all tiles on the second tiling. All tiles should be shared.
-  recycle_tiling->ComputeTilePriorityRects(
-      PENDING_TREE, gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f, Occlusion());
+  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);
   active_client.set_recycled_twin_tiling(recycle_tiling.get());
   recycle_client.set_twin_tiling(NULL);
 
   // Verify that tiles exist and are shared.
   EXPECT_TRUE(active_tiling->TileAt(0, 0));
   EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
   EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
 
   // Move the viewport far away from the (0, 0) tile.
-  active_tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, gfx::Rect(9000, 9000, 100, 100), 1.0f, 2.0, Occlusion());
+  active_tiling->ComputeTilePriorityRects(gfx::Rect(9000, 9000, 100, 100), 1.0f,
+                                          2.0, Occlusion());
   // Ensure the tile was deleted on both tilings.
   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(
-      ACTIVE_TREE, gfx::Rect(0, 0, 100, 100), 1.0f, 3.0, Occlusion());
+  active_tiling->ComputeTilePriorityRects(gfx::Rect(0, 0, 100, 100), 1.0f, 3.0,
+                                          Occlusion());
 
   // Ensure that we now have a tile here, but the recycle tiling does not.
   EXPECT_TRUE(active_tiling->TileAt(0, 0));
   EXPECT_FALSE(recycle_tiling->TileAt(0, 0));
 }
 
 TEST(PictureLayerTilingTest, RecycledTilesClearedOnReset) {
   FakePictureLayerTilingClient active_client;
   scoped_ptr<TestablePictureLayerTiling> active_tiling;
 
   active_client.SetTileSize(gfx::Size(100, 100));
   active_client.set_tree(ACTIVE_TREE);
   active_tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                                      gfx::Size(100, 100),
                                                      &active_client);
   // Create all tiles on this tiling.
-  active_tiling->ComputeTilePriorityRects(
-      ACTIVE_TREE, gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f, Occlusion());
+  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_tree(PENDING_TREE);
   recycle_client.set_twin_tiling(active_tiling.get());
   recycle_client.set_max_tiles_for_interest_area(10);
 
   scoped_ptr<TestablePictureLayerTiling> recycle_tiling;
   recycle_tiling = TestablePictureLayerTiling::Create(1.0f,  // contents_scale
                                                       gfx::Size(100, 100),
                                                       &recycle_client);
 
   // Create all tiles on the recycle tiling. All tiles should be shared.
-  recycle_tiling->ComputeTilePriorityRects(
-      PENDING_TREE, gfx::Rect(0, 0, 100, 100), 1.0f, 1.0f, Occlusion());
+  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);
   active_client.set_recycled_twin_tiling(recycle_tiling.get());
   recycle_client.set_twin_tiling(NULL);
 
   // Verify that tiles exist and are shared.
   EXPECT_TRUE(active_tiling->TileAt(0, 0));
   EXPECT_TRUE(recycle_tiling->TileAt(0, 0));
   EXPECT_EQ(active_tiling->TileAt(0, 0), recycle_tiling->TileAt(0, 0));
@@ skipping 13 matching lines @@
   EXPECT_EQ(4u, tiling_->AllRefTilesForTesting().size());
 
   client_.SetTileSize(gfx::Size(250, 200));
   client_.set_tree(PENDING_TREE);
 
   // 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());
 
   Region invalidation;
-  tiling_->UpdateTilesToCurrentRasterSource(invalidation, gfx::Size(250, 150));
+  tiling_->UpdateTilesToCurrentRasterSource(client_.raster_source(),
+                                            invalidation, gfx::Size(250, 150));
 
   // 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_->AllRefTilesForTesting().size());
 }
 
 }  // namespace
 }  // namespace cc