cc: Split tiling set raster queues into all and required.

cc/resources/tile_manager_unittest.cc

 // Copyright 2013 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/eviction_tile_priority_queue.h"
 #include "cc/resources/raster_tile_priority_queue.h"
 #include "cc/resources/tile.h"
 #include "cc/resources/tile_priority.h"
+#include "cc/resources/tiling_set_raster_queue_all.h"
 #include "cc/test/begin_frame_args_test.h"
 #include "cc/test/fake_impl_proxy.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/fake_output_surface_client.h"
 #include "cc/test/fake_picture_layer_impl.h"
 #include "cc/test/fake_picture_layer_tiling_client.h"
 #include "cc/test/fake_picture_pile_impl.h"
 #include "cc/test/fake_tile_manager.h"
 #include "cc/test/impl_side_painting_settings.h"
@@ skipping 125 matching lines @@
   FakePictureLayerImpl* pending_layer_;
   FakePictureLayerImpl* active_layer_;
 };
 
 TEST_F(TileManagerTilePriorityQueueTest, RasterTilePriorityQueue) {
   const gfx::Size layer_bounds(1000, 1000);
   host_impl_.SetViewportSize(layer_bounds);
   SetupDefaultTrees(layer_bounds);
 
   RasterTilePriorityQueue queue;
-  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   EXPECT_FALSE(queue.IsEmpty());
 
   size_t tile_count = 0;
   std::set<Tile*> all_tiles;
   while (!queue.IsEmpty()) {
     EXPECT_TRUE(queue.Top());
     all_tiles.insert(queue.Top());
     ++tile_count;
     queue.Pop();
   }
 
   EXPECT_EQ(tile_count, all_tiles.size());
   EXPECT_EQ(16u, tile_count);
 
   // Sanity check, all tiles should be visible.
   std::set<Tile*> smoothness_tiles;
   queue.Reset();
-  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY);
+  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::ALL);
   bool had_low_res = false;
   while (!queue.IsEmpty()) {
     Tile* tile = queue.Top();
     EXPECT_TRUE(tile);
     EXPECT_EQ(TilePriority::NOW, tile->priority(ACTIVE_TREE).priority_bin);
     EXPECT_EQ(TilePriority::NOW, tile->priority(PENDING_TREE).priority_bin);
     if (tile->priority(ACTIVE_TREE).resolution == LOW_RESOLUTION)
       had_low_res = true;
     else
       smoothness_tiles.insert(tile);
     queue.Pop();
   }
   EXPECT_EQ(all_tiles, smoothness_tiles);
   EXPECT_TRUE(had_low_res);
 
+  // Check that everything is required for activation.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(
+      &queue, SMOOTHNESS_TAKES_PRIORITY,
+      RasterTilePriorityQueue::Type::REQUIRED_FOR_ACTIVATION);
+  std::set<Tile*> required_for_activation_tiles;
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_activation());
+    required_for_activation_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(all_tiles, required_for_activation_tiles);
+
+  // Check that everything is required for draw.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::REQUIRED_FOR_DRAW);
+  std::set<Tile*> required_for_draw_tiles;
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_draw());
+    required_for_draw_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(all_tiles, required_for_draw_tiles);
+
   Region invalidation(gfx::Rect(0, 0, 500, 500));
 
   // Invalidate the pending tree.
   pending_layer_->set_invalidation(invalidation);
   pending_layer_->HighResTiling()->Invalidate(invalidation);
   pending_layer_->LowResTiling()->Invalidate(invalidation);
 
   active_layer_->ResetAllTilesPriorities();
   pending_layer_->ResetAllTilesPriorities();
 
@@ skipping 34 matching lines @@
       active_layer_->LowResTiling()->AllTilesForTesting();
   for (size_t i = 0; i < active_low_res_tiles.size(); ++i)
     all_tiles.insert(active_low_res_tiles[i]);
 
   Tile* last_tile = NULL;
   smoothness_tiles.clear();
   tile_count = 0;
   size_t correct_order_tiles = 0u;
   // Here we expect to get increasing ACTIVE_TREE priority_bin.
   queue.Reset();
-  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY);
+  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::ALL);
+  std::set<Tile*> expected_required_for_draw_tiles;
+  std::set<Tile*> expected_required_for_activation_tiles;
   while (!queue.IsEmpty()) {
     Tile* tile = queue.Top();
     EXPECT_TRUE(tile);
 
     if (!last_tile)
       last_tile = tile;
 
     EXPECT_LE(last_tile->priority(ACTIVE_TREE).priority_bin,
               tile->priority(ACTIVE_TREE).priority_bin);
     bool skip_updating_last_tile = false;
@@ skipping 15 matching lines @@
         last_tile->priority(ACTIVE_TREE).resolution !=
             tile->priority(ACTIVE_TREE).resolution) {
       // Low resolution should come first.
       EXPECT_EQ(LOW_RESOLUTION, last_tile->priority(ACTIVE_TREE).resolution);
     }
 
     if (!skip_updating_last_tile)
       last_tile = tile;
     ++tile_count;
     smoothness_tiles.insert(tile);
+    if (tile->required_for_draw())
+      expected_required_for_draw_tiles.insert(tile);
+    if (tile->required_for_activation())
+      expected_required_for_activation_tiles.insert(tile);
     queue.Pop();
   }
 
   EXPECT_EQ(tile_count, smoothness_tiles.size());
   EXPECT_EQ(all_tiles, smoothness_tiles);
   // Since we don't guarantee increasing distance due to spiral iterator, we
   // should check that we're _mostly_ right.
   EXPECT_GT(correct_order_tiles, 3 * tile_count / 4);
 
+  // Check that we have consistent required_for_activation tiles.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(
+      &queue, SMOOTHNESS_TAKES_PRIORITY,
+      RasterTilePriorityQueue::Type::REQUIRED_FOR_ACTIVATION);
+  required_for_activation_tiles.clear();
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_activation());
+    required_for_activation_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(expected_required_for_activation_tiles,
+            required_for_activation_tiles);
+  EXPECT_NE(all_tiles, required_for_activation_tiles);
+
+  // Check that we have consistent required_for_draw tiles.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::REQUIRED_FOR_DRAW);
+  required_for_draw_tiles.clear();
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_draw());
+    required_for_draw_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(expected_required_for_draw_tiles, required_for_draw_tiles);
+  EXPECT_NE(all_tiles, required_for_draw_tiles);
+
   std::set<Tile*> new_content_tiles;
   last_tile = NULL;
   size_t increasing_distance_tiles = 0u;
   // Here we expect to get increasing PENDING_TREE priority_bin.
   queue.Reset();
-  host_impl_.BuildRasterQueue(&queue, NEW_CONTENT_TAKES_PRIORITY);
+  host_impl_.BuildRasterQueue(&queue, NEW_CONTENT_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::ALL);
   tile_count = 0;
   while (!queue.IsEmpty()) {
     Tile* tile = queue.Top();
     EXPECT_TRUE(tile);
 
     if (!last_tile)
       last_tile = tile;
 
     EXPECT_LE(last_tile->priority(PENDING_TREE).priority_bin,
               tile->priority(PENDING_TREE).priority_bin);
@@ skipping 15 matching lines @@
     new_content_tiles.insert(tile);
     ++tile_count;
     queue.Pop();
   }
 
   EXPECT_EQ(tile_count, new_content_tiles.size());
   EXPECT_EQ(high_res_tiles, new_content_tiles);
   // Since we don't guarantee increasing distance due to spiral iterator, we
   // should check that we're _mostly_ right.
   EXPECT_GE(increasing_distance_tiles, 3 * tile_count / 4);
+
+  // Check that we have consistent required_for_activation tiles.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(
+      &queue, NEW_CONTENT_TAKES_PRIORITY,
+      RasterTilePriorityQueue::Type::REQUIRED_FOR_ACTIVATION);
+  required_for_activation_tiles.clear();
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_activation());
+    required_for_activation_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(expected_required_for_activation_tiles,
+            required_for_activation_tiles);
+  EXPECT_NE(new_content_tiles, required_for_activation_tiles);
+
+  // Check that we have consistent required_for_draw tiles.
+  queue.Reset();
+  host_impl_.BuildRasterQueue(&queue, NEW_CONTENT_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::REQUIRED_FOR_DRAW);
+  required_for_draw_tiles.clear();
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    EXPECT_TRUE(tile->required_for_draw());
+    required_for_draw_tiles.insert(tile);
+    queue.Pop();
+  }
+  EXPECT_EQ(expected_required_for_draw_tiles, required_for_draw_tiles);
+  EXPECT_NE(new_content_tiles, required_for_draw_tiles);
+}
+
+TEST_F(TileManagerTilePriorityQueueTest, RasterTilePriorityQueueInvalidation) {

[danakj, 2015/01/12 18:23:13]

Great test!

+  const gfx::Size layer_bounds(1000, 1000);
+  host_impl_.SetViewportSize(gfx::Size(500, 500));
+  SetupDefaultTrees(layer_bounds);
+
+  // Use a tile's content rect as an invalidation. We should inset it a bit to
+  // ensure that border math doesn't invalidate neighbouring tiles.
+  gfx::Rect invalidation =
+      pending_layer_->HighResTiling()->TileAt(1, 0)->content_rect();
+  invalidation.Inset(2, 2);
+
+  pending_layer_->set_invalidation(invalidation);
+  pending_layer_->HighResTiling()->Invalidate(invalidation);
+  pending_layer_->LowResTiling()->Invalidate(invalidation);
+
+  // Sanity checks: Tile at 0, 0 should be the same on both trees, tile at 1, 0
+  // should be different.
+  ASSERT_TRUE(pending_layer_->HighResTiling()->TileAt(0, 0));

[danakj, 2015/01/12 18:23:13]

nit: i prefer s/ASSERT/EXPECT/ throughout, you dont break scoping (like
DidDrawAllLayers() not being called causes a crash for eg - not this test tho)
and don't hide more info later potentially.

[vmpstr, 2015/01/12 19:17:26]

Done.

+  ASSERT_TRUE(active_layer_->HighResTiling()->TileAt(0, 0));
+  ASSERT_EQ(pending_layer_->HighResTiling()->TileAt(0, 0),
+            active_layer_->HighResTiling()->TileAt(0, 0));
+  ASSERT_TRUE(pending_layer_->HighResTiling()->TileAt(1, 0));
+  ASSERT_TRUE(active_layer_->HighResTiling()->TileAt(1, 0));
+  ASSERT_NE(pending_layer_->HighResTiling()->TileAt(1, 0),
+            active_layer_->HighResTiling()->TileAt(1, 0));
+
+  std::set<Tile*> expected_now_tiles;
+  std::set<Tile*> expected_required_for_draw_tiles;
+  std::set<Tile*> expected_required_for_activation_tiles;
+  for (int i = 0; i <= 1; ++i) {
+    for (int j = 0; j <= 1; ++j) {
+      expected_now_tiles.insert(pending_layer_->HighResTiling()->TileAt(i, j));
+      expected_now_tiles.insert(active_layer_->HighResTiling()->TileAt(i, j));
+
+      expected_required_for_activation_tiles.insert(
+          pending_layer_->HighResTiling()->TileAt(i, j));
+      expected_required_for_draw_tiles.insert(
+          active_layer_->HighResTiling()->TileAt(i, j));
+    }
+  }
+  // Expect 3 shared tiles and 1 unshared tile in total.
+  ASSERT_EQ(5u, expected_now_tiles.size());
+  // Expect 4 tiles for each draw and activation, but not all the same.
+  ASSERT_EQ(4u, expected_required_for_activation_tiles.size());
+  ASSERT_EQ(4u, expected_required_for_draw_tiles.size());
+  ASSERT_NE(expected_required_for_draw_tiles,
+            expected_required_for_activation_tiles);
+
+  std::set<Tile*> expected_all_tiles;
+  for (int i = 0; i <= 3; ++i) {
+    for (int j = 0; j <= 3; ++j) {
+      expected_all_tiles.insert(pending_layer_->HighResTiling()->TileAt(i, j));
+      expected_all_tiles.insert(active_layer_->HighResTiling()->TileAt(i, j));
+    }
+  }
+  // Expect 15 shared tiles and 1 unshared tile.
+  ASSERT_EQ(17u, expected_all_tiles.size());
+
+  // The actual test will now build different queues and verify that the queues
+  // return the same information as computed manually above.
+  RasterTilePriorityQueue queue;
+  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
+  std::set<Tile*> actual_now_tiles;
+  std::set<Tile*> actual_all_tiles;
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    queue.Pop();
+    if (tile->combined_priority().priority_bin == TilePriority::NOW)
+      actual_now_tiles.insert(tile);
+    actual_all_tiles.insert(tile);
+  }
+  EXPECT_EQ(expected_now_tiles, actual_now_tiles);
+  EXPECT_EQ(expected_all_tiles, actual_all_tiles);
+
+  queue.Reset();
+  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::REQUIRED_FOR_DRAW);
+  std::set<Tile*> actual_required_for_draw_tiles;
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    queue.Pop();
+    actual_required_for_draw_tiles.insert(tile);
+  }
+  EXPECT_EQ(expected_required_for_draw_tiles, actual_required_for_draw_tiles);
+
+  queue.Reset();
+  host_impl_.BuildRasterQueue(
+      &queue, SAME_PRIORITY_FOR_BOTH_TREES,
+      RasterTilePriorityQueue::Type::REQUIRED_FOR_ACTIVATION);
+  std::set<Tile*> actual_required_for_activation_tiles;
+  while (!queue.IsEmpty()) {
+    Tile* tile = queue.Top();
+    queue.Pop();
+    actual_required_for_activation_tiles.insert(tile);
+  }
+  EXPECT_EQ(expected_required_for_activation_tiles,
+            actual_required_for_activation_tiles);
 }
 
 TEST_F(TileManagerTilePriorityQueueTest, ActivationComesBeforeEventually) {
   base::TimeTicks time_ticks;
   time_ticks += base::TimeDelta::FromMilliseconds(1);
   host_impl_.SetCurrentBeginFrameArgs(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, time_ticks));
 
   gfx::Size layer_bounds(1000, 1000);
   SetupDefaultTrees(layer_bounds);
@@ skipping 11 matching lines @@
 
   // Set a small viewport, so we have soon and eventually tiles.
   host_impl_.SetViewportSize(gfx::Size(200, 200));
   time_ticks += base::TimeDelta::FromMilliseconds(1);
   host_impl_.SetCurrentBeginFrameArgs(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, time_ticks));
   host_impl_.pending_tree()->UpdateDrawProperties();
 
   RasterTilePriorityQueue queue;
   host_impl_.SetRequiresHighResToDraw();
-  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY);
+  host_impl_.BuildRasterQueue(&queue, SMOOTHNESS_TAKES_PRIORITY,
+                              RasterTilePriorityQueue::Type::ALL);
   EXPECT_FALSE(queue.IsEmpty());
 
   // Get all the tiles that are NOW or SOON and make sure they are ready to
   // draw.
   std::vector<Tile*> all_tiles;
   while (!queue.IsEmpty()) {
     Tile* tile = queue.Top();
     if (tile->combined_priority().priority_bin >= TilePriority::EVENTUALLY)
       break;
 
@@ skipping 14 matching lines @@
   host_impl_.SetViewportSize(layer_bounds);
   SetupDefaultTrees(layer_bounds);
 
   EvictionTilePriorityQueue empty_queue;
   host_impl_.BuildEvictionQueue(&empty_queue, SAME_PRIORITY_FOR_BOTH_TREES);
   EXPECT_TRUE(empty_queue.IsEmpty());
   std::set<Tile*> all_tiles;
   size_t tile_count = 0;
 
   RasterTilePriorityQueue raster_queue;
-  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   while (!raster_queue.IsEmpty()) {
     ++tile_count;
     EXPECT_TRUE(raster_queue.Top());
     all_tiles.insert(raster_queue.Top());
     raster_queue.Pop();
   }
 
   EXPECT_EQ(tile_count, all_tiles.size());
   EXPECT_EQ(16u, tile_count);
 
@@ skipping 176 matching lines @@
   pending_child_layer->SetDrawsContent(true);
 
   time_ticks += base::TimeDelta::FromMilliseconds(1);
   host_impl_.SetCurrentBeginFrameArgs(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE, time_ticks));
   host_impl_.pending_tree()->UpdateDrawProperties();
 
   std::set<Tile*> all_tiles;
   size_t tile_count = 0;
   RasterTilePriorityQueue raster_queue;
-  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   while (!raster_queue.IsEmpty()) {
     ++tile_count;
     EXPECT_TRUE(raster_queue.Top());
     all_tiles.insert(raster_queue.Top());
     raster_queue.Pop();
   }
   EXPECT_EQ(tile_count, all_tiles.size());
   EXPECT_EQ(32u, tile_count);
 
   pending_layer_->ResetAllTilesPriorities();
@@ skipping 184 matching lines @@
   EXPECT_EQ(tile_count, new_content_tiles.size());
   EXPECT_EQ(all_tiles, new_content_tiles);
 }
 
 TEST_F(TileManagerTilePriorityQueueTest, RasterTilePriorityQueueEmptyLayers) {
   const gfx::Size layer_bounds(1000, 1000);
   host_impl_.SetViewportSize(layer_bounds);
   SetupDefaultTrees(layer_bounds);
 
   RasterTilePriorityQueue queue;
-  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   EXPECT_FALSE(queue.IsEmpty());
 
   size_t tile_count = 0;
   std::set<Tile*> all_tiles;
   while (!queue.IsEmpty()) {
     EXPECT_TRUE(queue.Top());
     all_tiles.insert(queue.Top());
     ++tile_count;
     queue.Pop();
   }
 
   EXPECT_EQ(tile_count, all_tiles.size());
   EXPECT_EQ(16u, tile_count);
 
   queue.Reset();
   for (int i = 1; i < 10; ++i) {
     scoped_ptr<FakePictureLayerImpl> pending_layer =
         FakePictureLayerImpl::Create(host_impl_.pending_tree(), id_ + i);
     pending_layer->SetDrawsContent(true);
     pending_layer->set_has_valid_tile_priorities(true);
     pending_layer_->AddChild(pending_layer.Pass());
   }
 
-  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   EXPECT_FALSE(queue.IsEmpty());
 
   tile_count = 0;
   all_tiles.clear();
   while (!queue.IsEmpty()) {
     EXPECT_TRUE(queue.Top());
     all_tiles.insert(queue.Top());
     ++tile_count;
     queue.Pop();
   }
   EXPECT_EQ(tile_count, all_tiles.size());
   EXPECT_EQ(16u, tile_count);
 }
 
 TEST_F(TileManagerTilePriorityQueueTest, EvictionTilePriorityQueueEmptyLayers) {
   const gfx::Size layer_bounds(1000, 1000);
   host_impl_.SetViewportSize(layer_bounds);
   SetupDefaultTrees(layer_bounds);
 
   RasterTilePriorityQueue raster_queue;
-  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES);
+  host_impl_.BuildRasterQueue(&raster_queue, SAME_PRIORITY_FOR_BOTH_TREES,
+                              RasterTilePriorityQueue::Type::ALL);
   EXPECT_FALSE(raster_queue.IsEmpty());
 
   size_t tile_count = 0;
   std::set<Tile*> all_tiles;
   while (!raster_queue.IsEmpty()) {
     EXPECT_TRUE(raster_queue.Top());
     all_tiles.insert(raster_queue.Top());
     ++tile_count;
     raster_queue.Pop();
   }
@@ skipping 46 matching lines @@
       &client, settings.max_tiles_for_interest_area,
       settings.skewport_target_time_in_seconds,
       settings.skewport_extrapolation_limit_in_content_pixels);
 
   scoped_refptr<FakePicturePileImpl> pile =
       FakePicturePileImpl::CreateFilledPileWithDefaultTileSize(layer_bounds);
   PictureLayerTiling* tiling = tiling_set->AddTiling(1.0f, pile);
   tiling->set_resolution(HIGH_RESOLUTION);
 
   tiling_set->UpdateTilePriorities(viewport, 1.0f, 1.0, Occlusion(), true);
-
-  TilingSetRasterQueue empty_queue;
-  EXPECT_TRUE(empty_queue.IsEmpty());
-
   std::vector<Tile*> all_tiles = tiling->AllTilesForTesting();
-
   // Sanity check.
   EXPECT_EQ(841u, all_tiles.size());
 
   // The explanation of each iteration is as follows:
   // 1. First iteration tests that we can get all of the tiles correctly.
   // 2. Second iteration ensures that we can get all of the tiles again (first
   //    iteration didn't change any tiles), as well set all tiles to be ready to
   //    draw.
   // 3. Third iteration ensures that no tiles are returned, since they were all
   //    marked as ready to draw.
   for (int i = 0; i < 3; ++i) {
-    TilingSetRasterQueue queue(tiling_set.get(), false);
+    scoped_ptr<TilingSetRasterQueue> queue(
+        new TilingSetRasterQueueAll(tiling_set.get(), false));
 
     // There are 3 bins in TilePriority.
     bool have_tiles[3] = {};
 
     // On the third iteration, we should get no tiles since everything was
     // marked as ready to draw.
     if (i == 2) {
-      EXPECT_TRUE(queue.IsEmpty());
+      EXPECT_TRUE(queue->IsEmpty());
       continue;
     }
 
-    EXPECT_FALSE(queue.IsEmpty());
+    EXPECT_FALSE(queue->IsEmpty());
     std::set<Tile*> unique_tiles;
-    unique_tiles.insert(queue.Top());
-    Tile* last_tile = queue.Top();
+    unique_tiles.insert(queue->Top());
+    Tile* last_tile = queue->Top();
     have_tiles[last_tile->priority(ACTIVE_TREE).priority_bin] = true;
 
     // On the second iteration, mark everything as ready to draw (solid color).
     if (i == 1) {
       TileDrawInfo& draw_info = last_tile->draw_info();
       draw_info.SetSolidColorForTesting(SK_ColorRED);
     }
-    queue.Pop();
+    queue->Pop();
     int eventually_bin_order_correct_count = 0;
     int eventually_bin_order_incorrect_count = 0;
-    while (!queue.IsEmpty()) {
-      Tile* new_tile = queue.Top();
-      queue.Pop();
+    while (!queue->IsEmpty()) {
+      Tile* new_tile = queue->Top();
+      queue->Pop();
       unique_tiles.insert(new_tile);
 
       TilePriority last_priority = last_tile->priority(ACTIVE_TREE);
       TilePriority new_priority = new_tile->priority(ACTIVE_TREE);
       EXPECT_LE(last_priority.priority_bin, new_priority.priority_bin);
       if (last_priority.priority_bin == new_priority.priority_bin) {
         if (last_priority.priority_bin == TilePriority::EVENTUALLY) {
           bool order_correct = last_priority.distance_to_visible <=
                                new_priority.distance_to_visible;
           eventually_bin_order_correct_count += order_correct;
@@ skipping 60 matching lines @@
                                    true);
 
   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;
-  for (TilingSetRasterQueue queue(tiling_set.get(), false); !queue.IsEmpty();
-       queue.Pop()) {
+  scoped_ptr<TilingSetRasterQueue> queue(
+      new TilingSetRasterQueueAll(tiling_set.get(), false));
+  for (; !queue->IsEmpty(); queue->Pop()) {
     if (!last_tile)
-      last_tile = queue.Top();
+      last_tile = queue->Top();
 
-    Tile* new_tile = queue.Top();
+    Tile* new_tile = queue->Top();
 
     TilePriority last_priority = last_tile->priority(ACTIVE_TREE);
     TilePriority new_priority = new_tile->priority(ACTIVE_TREE);
 
     have_tiles[new_priority.priority_bin] = true;
 
     EXPECT_LE(last_priority.priority_bin, new_priority.priority_bin);
     if (last_priority.priority_bin == new_priority.priority_bin) {
       if (last_priority.priority_bin == TilePriority::EVENTUALLY) {
         bool order_correct = last_priority.distance_to_visible <=
@@ skipping 14 matching lines @@
   EXPECT_GT(eventually_bin_order_correct_count,
             eventually_bin_order_incorrect_count);
 
   EXPECT_TRUE(have_tiles[TilePriority::NOW]);
   EXPECT_TRUE(have_tiles[TilePriority::SOON]);
   EXPECT_TRUE(have_tiles[TilePriority::EVENTUALLY]);
 }
 
 }  // namespace
 }  // namespace cc