cc: Rework how picture layer tiling set gets into raster queues.

cc/trees/layer_tree_host_unittest.cc

Index: cc/trees/layer_tree_host_unittest.cc
diff --git a/cc/trees/layer_tree_host_unittest.cc b/cc/trees/layer_tree_host_unittest.cc
index 8dab1af16ef499518470c915e0f77f2f0026ec2c..842b3480d523bf05301bbc135b323341fd2f5d09 100644
--- a/cc/trees/layer_tree_host_unittest.cc
+++ b/cc/trees/layer_tree_host_unittest.cc
@@ -78,20 +78,17 @@ class LayerTreeHostTestReadyToActivateEmpty : public LayerTreeHostTest {
  public:
   LayerTreeHostTestReadyToActivateEmpty()
       : did_notify_ready_to_activate_(false),
-        all_tiles_required_for_activation_are_ready_to_draw_(false),
-        required_for_activation_count_(0) {}
+        all_tiles_required_for_activation_are_ready_to_draw_(false) {}
 
   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
-    const std::vector<PictureLayerImpl*>& layers = impl->GetPictureLayers();
-    required_for_activation_count_ = 0;
-    for (const auto& layer : layers) {
-      FakePictureLayerImpl* fake_layer =
-          static_cast<FakePictureLayerImpl*>(layer);
-      required_for_activation_count_ +=
-          fake_layer->CountTilesRequiredForActivation();
-    }
+    bool ready_to_activate_on_commit_complete =
+        impl->tile_manager()->IsReadyToActivate();
+    // This being true means that we have no tiles required for activation
+    // (since we had no time to prepare any tiles if they were required for
+    // activation).
+    EXPECT_TRUE(ready_to_activate_on_commit_complete);
   }
 
   void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
@@ -104,22 +101,23 @@ class LayerTreeHostTestReadyToActivateEmpty : public LayerTreeHostTest {
   void AfterTest() override {
     EXPECT_TRUE(did_notify_ready_to_activate_);
     EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
-    EXPECT_EQ(size_t(0), required_for_activation_count_);
   }
 
- protected:
+ private:
   bool did_notify_ready_to_activate_;
   bool all_tiles_required_for_activation_are_ready_to_draw_;
-  size_t required_for_activation_count_;
 };
 
 SINGLE_AND_MULTI_THREAD_IMPL_TEST_F(LayerTreeHostTestReadyToActivateEmpty);
 
 // Test if the LTHI receives ReadyToActivate notifications from the TileManager
 // when some raster tasks flagged as REQUIRED_FOR_ACTIVATION got scheduled.
-class LayerTreeHostTestReadyToActivateNonEmpty
-    : public LayerTreeHostTestReadyToActivateEmpty {
+class LayerTreeHostTestReadyToActivateNonEmpty : public LayerTreeHostTest {
  public:
+  LayerTreeHostTestReadyToActivateNonEmpty()
+      : did_notify_ready_to_activate_(false),
+        all_tiles_required_for_activation_are_ready_to_draw_(false) {}
+
   void SetupTree() override {
     client_.set_fill_with_nonsolid_color(true);
     scoped_refptr<FakePictureLayer> root_layer =
@@ -131,14 +129,24 @@ class LayerTreeHostTestReadyToActivateNonEmpty
     LayerTreeHostTest::SetupTree();
   }
 
+  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
+
+  void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
+    did_notify_ready_to_activate_ = true;
+    all_tiles_required_for_activation_are_ready_to_draw_ =
+        impl->tile_manager()->IsReadyToActivate();
+    EndTest();
+  }
+
   void AfterTest() override {
     EXPECT_TRUE(did_notify_ready_to_activate_);
     EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
-    EXPECT_LE(size_t(1), required_for_activation_count_);
   }
 
  private:
   FakeContentLayerClient client_;
+  bool did_notify_ready_to_activate_;
+  bool all_tiles_required_for_activation_are_ready_to_draw_;
 };
 
 SINGLE_AND_MULTI_THREAD_IMPL_TEST_F(LayerTreeHostTestReadyToActivateNonEmpty);
@@ -149,44 +157,37 @@ class LayerTreeHostTestReadyToDrawEmpty : public LayerTreeHostTest {
  public:
   LayerTreeHostTestReadyToDrawEmpty()
       : did_notify_ready_to_draw_(false),
-        all_tiles_required_for_draw_are_ready_to_draw_(false),
-        required_for_draw_count_(0) {}
+        all_tiles_required_for_draw_are_ready_to_draw_(false) {}
 
   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
   void NotifyReadyToDrawOnThread(LayerTreeHostImpl* impl) override {
     did_notify_ready_to_draw_ = true;
-    const std::vector<PictureLayerImpl*>& layers = impl->GetPictureLayers();
     all_tiles_required_for_draw_are_ready_to_draw_ =
         impl->tile_manager()->IsReadyToDraw();
-    for (const auto& layer : layers) {
-      FakePictureLayerImpl* fake_layer =
-          static_cast<FakePictureLayerImpl*>(layer);
-      required_for_draw_count_ += fake_layer->CountTilesRequiredForDraw();
-    }
-
     EndTest();
   }
 
   void AfterTest() override {
     EXPECT_TRUE(did_notify_ready_to_draw_);
     EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
-    EXPECT_EQ(size_t(0), required_for_draw_count_);
   }
 
- protected:
+ private:
   bool did_notify_ready_to_draw_;
   bool all_tiles_required_for_draw_are_ready_to_draw_;
-  size_t required_for_draw_count_;
 };
 
 SINGLE_AND_MULTI_THREAD_IMPL_TEST_F(LayerTreeHostTestReadyToDrawEmpty);
 
 // Test if the LTHI receives ReadyToDraw notifications from the TileManager when
 // some raster tasks flagged as REQUIRED_FOR_DRAW got scheduled.
-class LayerTreeHostTestReadyToDrawNonEmpty
-    : public LayerTreeHostTestReadyToDrawEmpty {
+class LayerTreeHostTestReadyToDrawNonEmpty : public LayerTreeHostTest {
  public:
+  LayerTreeHostTestReadyToDrawNonEmpty()
+      : did_notify_ready_to_draw_(false),
+        all_tiles_required_for_draw_are_ready_to_draw_(false) {}
+
   void SetupTree() override {
     client_.set_fill_with_nonsolid_color(true);
     scoped_refptr<FakePictureLayer> root_layer =
@@ -198,14 +199,24 @@ class LayerTreeHostTestReadyToDrawNonEmpty
     LayerTreeHostTest::SetupTree();
   }
 
+  void BeginTest() override { PostSetNeedsCommitToMainThread(); }
+
+  void NotifyReadyToDrawOnThread(LayerTreeHostImpl* impl) override {
+    did_notify_ready_to_draw_ = true;
+    all_tiles_required_for_draw_are_ready_to_draw_ =
+        impl->tile_manager()->IsReadyToDraw();
+    EndTest();
+  }
+
   void AfterTest() override {
     EXPECT_TRUE(did_notify_ready_to_draw_);
     EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
-    EXPECT_LE(size_t(1), required_for_draw_count_);
   }
 
  private:
   FakeContentLayerClient client_;
+  bool did_notify_ready_to_draw_;
+  bool all_tiles_required_for_draw_are_ready_to_draw_;
 };
 
 // Note: With this test setup, we only get tiles flagged as REQUIRED_FOR_DRAW in
@@ -5857,7 +5868,7 @@ class GpuRasterizationRasterizesVisibleOnly : public LayerTreeHostTest {
     // Verify which tiles got resources using an eviction iterator, which has to
     // return all tiles that have resources.
     scoped_ptr<EvictionTilePriorityQueue> eviction_queue(
-        host_impl->BuildEvictionQueue(SAME_PRIORITY_FOR_BOTH_TREES));
+        host_impl->tile_manager()->BuildEvictionQueue());
     int tile_count = 0;
     for (; !eviction_queue->IsEmpty(); eviction_queue->Pop()) {
       Tile* tile = eviction_queue->Top();