cc: Abstract the LayerTreeHost.

cc/layers/picture_layer_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/layers/picture_layer.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "base/threading/thread_task_runner_handle.h"
@@ skipping 223 matching lines @@
 
   FakeLayerTreeHostClient host_client;
   TestTaskGraphRunner task_graph_runner;
   std::unique_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->GetLayerTree()->SetRootLayer(layer);
   layer->SetIsDrawable(true);
   layer->SavePaintProperties();
   layer->Update();
 
-  EXPECT_EQ(0, host->source_frame_number());
+  EXPECT_EQ(0, host->SourceFrameNumber());
   host->CommitComplete();
-  EXPECT_EQ(1, host->source_frame_number());
+  EXPECT_EQ(1, host->SourceFrameNumber());
 
   layer->SetBounds(gfx::Size(0, 0));
   layer->SavePaintProperties();
   // Intentionally skipping Update since it would normally be skipped on
   // a layer with empty bounds.
 
   FakeImplTaskRunnerProvider impl_task_runner_provider;
 
   TestSharedBitmapManager shared_bitmap_manager;
   std::unique_ptr<FakeOutputSurface> output_surface =
@@ skipping 112 matching lines @@
 
   FakeLayerTreeHostClient host_client;
   TestTaskGraphRunner task_graph_runner;
   std::unique_ptr<FakeLayerTreeHost> host =
       FakeLayerTreeHost::Create(&host_client, &task_graph_runner);
   host->GetLayerTree()->SetRootLayer(layer);
   layer->SetIsDrawable(true);
   layer->SavePaintProperties();
   layer->Update();
 
-  EXPECT_EQ(0, host->source_frame_number());
+  EXPECT_EQ(0, host->SourceFrameNumber());
   host->CommitComplete();
-  EXPECT_EQ(1, host->source_frame_number());
+  EXPECT_EQ(1, host->SourceFrameNumber());
 
   layer->SavePaintProperties();
   layer->Update();
 
   FakeImplTaskRunnerProvider impl_task_runner_provider;
 
   TestSharedBitmapManager shared_bitmap_manager;
   std::unique_ptr<OutputSurface> output_surface(
       FakeOutputSurface::CreateDelegating3d());
   LayerTreeSettings layer_tree_settings = LayerTreeSettingsForTesting();
   layer_tree_settings.image_decode_tasks_enabled = true;
   FakeLayerTreeHostImpl host_impl(layer_tree_settings,
                                   &impl_task_runner_provider,
                                   &shared_bitmap_manager, &task_graph_runner);
   host_impl.SetVisible(true);
   EXPECT_TRUE(host_impl.InitializeRenderer(output_surface.get()));
 
   host_impl.CreatePendingTree();
   host_impl.pending_tree()->SetRootLayerForTesting(
       FakePictureLayerImpl::Create(host_impl.pending_tree(), 1));
   host_impl.pending_tree()->BuildLayerListForTesting();
 
   FakePictureLayerImpl* layer_impl = static_cast<FakePictureLayerImpl*>(
       host_impl.pending_tree()->root_layer_for_testing());
 
   layer->PushPropertiesTo(layer_impl);
 
   host->CommitComplete();
-  EXPECT_EQ(2, host->source_frame_number());
+  EXPECT_EQ(2, host->SourceFrameNumber());
 
   host_impl.ActivateSyncTree();
 
   // By updating the draw proprties on the active tree, we will set the viewport
   // rect for tile priorities to something non-empty.
   const bool can_use_lcd_text = false;
   host_impl.active_tree()->BuildPropertyTreesForTesting();
   host_impl.active_tree()->UpdateDrawProperties(can_use_lcd_text);
 
   layer->SetBounds(gfx::Size(11, 11));
@@ skipping 103 matching lines @@
   host2->SetVisible(true);
   host_client2.SetLayerTreeHost(host2.get());
 
   // The PictureLayer is put in one LayerTreeHost.
   host1->GetLayerTree()->SetRootLayer(layer);
   // Do a main frame, record the picture layers.
   EXPECT_EQ(0, layer->update_count());
   layer->SetNeedsDisplay();
   host1->Composite(base::TimeTicks::Now());
   EXPECT_EQ(1, layer->update_count());
-  EXPECT_EQ(1, host1->source_frame_number());
+  EXPECT_EQ(1, host1->SourceFrameNumber());
 
   // The source frame number in |host1| is now higher than host2.
   layer->SetNeedsDisplay();
   host1->Composite(base::TimeTicks::Now());
   EXPECT_EQ(2, layer->update_count());
-  EXPECT_EQ(2, host1->source_frame_number());
+  EXPECT_EQ(2, host1->SourceFrameNumber());
 
   // Then moved to another LayerTreeHost.
   host1->GetLayerTree()->SetRootLayer(nullptr);
   host2->GetLayerTree()->SetRootLayer(layer);
 
   // Do a main frame, record the picture layers. The frame number has changed
   // non-monotonically.
   layer->SetNeedsDisplay();
   host2->Composite(base::TimeTicks::Now());
   EXPECT_EQ(3, layer->update_count());
-  EXPECT_EQ(1, host2->source_frame_number());
+  EXPECT_EQ(1, host2->SourceFrameNumber());
 }
 
 }  // namespace
 }  // namespace cc