Fork cc::OutputSurface into cc::CompositorFrameSink.

cc/trees/layer_tree_host_impl_unittest.cc

 // Copyright 2011 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/trees/layer_tree_host_impl.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cmath>
@@ skipping 30 matching lines @@
 #include "cc/output/gl_renderer.h"
 #include "cc/output/latency_info_swap_promise.h"
 #include "cc/quads/render_pass_draw_quad.h"
 #include "cc/quads/solid_color_draw_quad.h"
 #include "cc/quads/texture_draw_quad.h"
 #include "cc/quads/tile_draw_quad.h"
 #include "cc/resources/ui_resource_bitmap.h"
 #include "cc/resources/ui_resource_manager.h"
 #include "cc/test/animation_test_common.h"
 #include "cc/test/begin_frame_args_test.h"
+#include "cc/test/fake_compositor_frame_sink.h"
 #include "cc/test/fake_layer_tree_host_impl.h"
 #include "cc/test/fake_mask_layer_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_raster_source.h"
 #include "cc/test/fake_video_frame_provider.h"
 #include "cc/test/geometry_test_utils.h"
 #include "cc/test/gpu_rasterization_enabled_settings.h"
 #include "cc/test/layer_test_common.h"
 #include "cc/test/layer_tree_test.h"
-#include "cc/test/test_delegating_output_surface.h"
+#include "cc/test/test_compositor_frame_sink.h"
 #include "cc/test/test_gpu_memory_buffer_manager.h"
 #include "cc/test/test_shared_bitmap_manager.h"
 #include "cc/test/test_task_graph_runner.h"
 #include "cc/test/test_web_graphics_context_3d.h"
 #include "cc/trees/effect_node.h"
 #include "cc/trees/layer_tree_host_common.h"
 #include "cc/trees/layer_tree_impl.h"
 #include "cc/trees/single_thread_proxy.h"
 #include "cc/trees/transform_node.h"
 #include "media/base/media.h"
@@ skipping 43 matching lines @@
     settings.renderer_settings.texture_id_allocation_chunk_size = 1;
     settings.gpu_rasterization_enabled = true;
     settings.verify_clip_tree_calculations = true;
     settings.verify_transform_tree_calculations = true;
     settings.renderer_settings.buffer_to_texture_target_map =
         DefaultBufferToTextureTargetMapForTesting();
     return settings;
   }
 
   void SetUp() override {
-    CreateHostImpl(DefaultSettings(), CreateOutputSurface());
+    CreateHostImpl(DefaultSettings(), CreateCompositorFrameSink());
   }
 
   void TearDown() override {
     if (host_impl_)
-      host_impl_->ReleaseOutputSurface();
+      host_impl_->ReleaseCompositorFrameSink();
   }
 
-  void DidLoseOutputSurfaceOnImplThread() override {}
+  void DidLoseCompositorFrameSinkOnImplThread() override {}
   void SetBeginFrameSource(BeginFrameSource* source) override {}
   void SetEstimatedParentDrawTime(base::TimeDelta draw_time) override {}
   void DidSwapBuffersCompleteOnImplThread() override {}
   void OnCanDrawStateChanged(bool can_draw) override {
     on_can_draw_state_changed_called_ = true;
   }
   void NotifyReadyToActivate() override {
     did_notify_ready_to_activate_ = true;
     host_impl_->ActivateSyncTree();
   }
@@ skipping 18 matching lines @@
                                             base::TimeDelta delay) override {
     animation_task_ = task;
     requested_animation_delay_ = delay;
   }
   void DidActivateSyncTree() override {}
   void WillPrepareTiles() override {}
   void DidPrepareTiles() override {}
   void DidCompletePageScaleAnimationOnImplThread() override {
     did_complete_page_scale_animation_ = true;
   }
-  void OnDrawForOutputSurface(bool resourceless_software_draw) override {
+  void OnDrawForCompositorFrameSink(bool resourceless_software_draw) override {
     std::unique_ptr<LayerTreeHostImpl::FrameData> frame(
         new LayerTreeHostImpl::FrameData);
     EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(frame.get()));
     last_on_draw_render_passes_.clear();
     RenderPass::CopyAll(frame->render_passes, &last_on_draw_render_passes_);
     host_impl_->DrawLayers(frame.get());
     host_impl_->DidDrawAllLayers(*frame);
     last_on_draw_frame_ = std::move(frame);
   }
 
   void set_reduce_memory_result(bool reduce_memory_result) {
     reduce_memory_result_ = reduce_memory_result;
   }
 
-  virtual bool CreateHostImpl(const LayerTreeSettings& settings,
-                              std::unique_ptr<OutputSurface> output_surface) {
+  virtual bool CreateHostImpl(
+      const LayerTreeSettings& settings,
+      std::unique_ptr<CompositorFrameSink> compositor_frame_sink) {
     return CreateHostImplWithTaskRunnerProvider(
-        settings, std::move(output_surface), &task_runner_provider_);
+        settings, std::move(compositor_frame_sink), &task_runner_provider_);
   }
 
   virtual bool CreateHostImplWithTaskRunnerProvider(
       const LayerTreeSettings& settings,
-      std::unique_ptr<OutputSurface> output_surface,
+      std::unique_ptr<CompositorFrameSink> compositor_frame_sink,
       TaskRunnerProvider* task_runner_provider) {
     if (host_impl_)
-      host_impl_->ReleaseOutputSurface();
+      host_impl_->ReleaseCompositorFrameSink();
     host_impl_ = LayerTreeHostImpl::Create(
         settings, this, task_runner_provider, &stats_instrumentation_,
         &shared_bitmap_manager_, &gpu_memory_buffer_manager_,
         &task_graph_runner_,
         AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0);
-    output_surface_ = std::move(output_surface);
+    compositor_frame_sink_ = std::move(compositor_frame_sink);
     host_impl_->SetVisible(true);
-    bool init = host_impl_->InitializeRenderer(output_surface_.get());
+    bool init = host_impl_->InitializeRenderer(compositor_frame_sink_.get());
     host_impl_->SetViewportSize(gfx::Size(10, 10));
     host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 1.f);
     // Set the BeginFrameArgs so that methods which use it are able to.
     host_impl_->WillBeginImplFrame(CreateBeginFrameArgsForTesting(
         BEGINFRAME_FROM_HERE,
         base::TimeTicks() + base::TimeDelta::FromMilliseconds(1)));
     host_impl_->DidFinishImplFrame();
 
     timeline_ =
         AnimationTimeline::Create(AnimationIdProvider::NextTimelineId());
@@ skipping 244 matching lines @@
   void pinch_zoom_pan_viewport_test(float device_scale_factor);
   void pinch_zoom_pan_viewport_and_scroll_test(float device_scale_factor);
   void pinch_zoom_pan_viewport_and_scroll_boundary_test(
       float device_scale_factor);
 
   void SetupMouseMoveAtWithDeviceScale(float device_scale_factor);
 
   scoped_refptr<AnimationTimeline> timeline() { return timeline_; }
 
  protected:
-  virtual std::unique_ptr<OutputSurface> CreateOutputSurface() {
-    return FakeOutputSurface::CreateDelegating3d();
+  virtual std::unique_ptr<CompositorFrameSink> CreateCompositorFrameSink() {
+    return FakeCompositorFrameSink::Create3d();
   }
 
   void DrawOneFrame() {
     LayerTreeHostImpl::FrameData frame_data;
     host_impl_->PrepareToDraw(&frame_data);
     host_impl_->DidDrawAllLayers(frame_data);
   }
 
   static void SetScrollOffsetDelta(LayerImpl* layer_impl,
                                    const gfx::Vector2dF& delta) {
@@ skipping 13 matching lines @@
     host_impl_->UpdateAnimationState(true);
     host_impl_->DidFinishImplFrame();
   }
 
   FakeImplTaskRunnerProvider task_runner_provider_;
   DebugScopedSetMainThreadBlocked always_main_thread_blocked_;
 
   TestSharedBitmapManager shared_bitmap_manager_;
   TestGpuMemoryBufferManager gpu_memory_buffer_manager_;
   TestTaskGraphRunner task_graph_runner_;
-  std::unique_ptr<OutputSurface> output_surface_;
+  std::unique_ptr<CompositorFrameSink> compositor_frame_sink_;
   std::unique_ptr<LayerTreeHostImpl> host_impl_;
   FakeRenderingStatsInstrumentation stats_instrumentation_;
   bool on_can_draw_state_changed_called_;
   bool did_notify_ready_to_activate_;
   bool did_request_commit_;
   bool did_request_redraw_;
   bool did_request_next_frame_;
   bool did_request_prepare_tiles_;
   bool did_complete_page_scale_animation_;
   bool reduce_memory_result_;
   base::Closure animation_task_;
   base::TimeDelta requested_animation_delay_;
   std::unique_ptr<LayerTreeHostImpl::FrameData> last_on_draw_frame_;
   RenderPassList last_on_draw_render_passes_;
   scoped_refptr<AnimationTimeline> timeline_;
 };
 
 // A test fixture for new animation timelines tests.
 class LayerTreeHostImplTimelinesTest : public LayerTreeHostImplTest {
  public:
   void SetUp() override {
-    CreateHostImpl(DefaultSettings(), CreateOutputSurface());
+    CreateHostImpl(DefaultSettings(), CreateCompositorFrameSink());
   }
 };
 
 TEST_F(LayerTreeHostImplTest, NotifyIfCanDrawChanged) {
   // Note: It is not possible to disable the renderer once it has been set,
   // so we do not need to test that disabling the renderer notifies us
   // that can_draw changed.
   EXPECT_FALSE(host_impl_->CanDraw());
   on_can_draw_state_changed_called_ = false;
 
@@ skipping 21 matching lines @@
   EXPECT_TRUE(on_can_draw_state_changed_called_);
   on_can_draw_state_changed_called_ = false;
 
   host_impl_->SetViewportSize(gfx::Size(100, 100));
   EXPECT_TRUE(host_impl_->CanDraw());
   EXPECT_TRUE(on_can_draw_state_changed_called_);
   on_can_draw_state_changed_called_ = false;
 }
 
 TEST_F(LayerTreeHostImplTest, ResourcelessDrawWithEmptyViewport) {
-  CreateHostImpl(DefaultSettings(),
-                 FakeOutputSurface::CreateDelegatingSoftware());
+  CreateHostImpl(DefaultSettings(), FakeCompositorFrameSink::CreateSoftware());
   SetupScrollAndContentsLayers(gfx::Size(100, 100));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   EXPECT_TRUE(host_impl_->CanDraw());
   host_impl_->SetViewportSize(gfx::Size());
   EXPECT_FALSE(host_impl_->CanDraw());
 
-  FakeOutputSurface* fake_output_surface =
-      static_cast<FakeOutputSurface*>(host_impl_->output_surface());
-  EXPECT_EQ(fake_output_surface->num_sent_frames(), 0u);
+  FakeCompositorFrameSink* fake_compositor_frame_sink =
+      static_cast<FakeCompositorFrameSink*>(
+          host_impl_->compositor_frame_sink());
+  EXPECT_EQ(fake_compositor_frame_sink->num_sent_frames(), 0u);
   gfx::Transform identity;
   gfx::Rect viewport(100, 100);
   const bool resourceless_software_draw = true;
   host_impl_->OnDraw(identity, viewport, resourceless_software_draw);
-  ASSERT_EQ(fake_output_surface->num_sent_frames(), 1u);
-  EXPECT_EQ(gfx::SizeF(100.f, 100.f),
-            fake_output_surface->last_sent_frame()->metadata.root_layer_size);
+  ASSERT_EQ(fake_compositor_frame_sink->num_sent_frames(), 1u);
+  EXPECT_EQ(
+      gfx::SizeF(100.f, 100.f),
+      fake_compositor_frame_sink->last_sent_frame()->metadata.root_layer_size);
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollDeltaNoLayers) {
   ASSERT_FALSE(host_impl_->active_tree()->root_layer_for_testing());
 
   std::unique_ptr<ScrollAndScaleSet> scroll_info =
       host_impl_->ProcessScrollDeltas();
   ASSERT_EQ(scroll_info->scrolls.size(), 0u);
 }
 
@@ skipping 128 matching lines @@
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollWithoutRenderer) {
   std::unique_ptr<TestWebGraphicsContext3D> context_owned =
       TestWebGraphicsContext3D::Create();
   context_owned->set_context_lost(true);
 
   // Initialization will fail.
   EXPECT_FALSE(CreateHostImpl(
       DefaultSettings(),
-      FakeOutputSurface::CreateDelegating3d(std::move(context_owned))));
+      FakeCompositorFrameSink::Create3d(std::move(context_owned))));
 
   SetupScrollAndContentsLayers(gfx::Size(100, 100));
 
   // We should not crash when trying to scroll after the renderer initialization
   // fails.
   InputHandler::ScrollStatus status = host_impl_->ScrollBegin(
       BeginState(gfx::Point()).get(), InputHandler::WHEEL);
   EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD, status.thread);
   EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
             status.main_thread_scrolling_reasons);
@@ skipping 661 matching lines @@
   // An animation exists on the active layer. Doing Animate() requests another
   // frame after the current one.
   EXPECT_TRUE(did_request_next_frame_);
   // The animation should cause us to draw at the frame's deadline.
   EXPECT_TRUE(did_request_redraw_);
   EXPECT_FALSE(did_request_commit_);
 }
 
 TEST_F(LayerTreeHostImplTest, AnimationSchedulingCommitToActiveTree) {
   FakeImplTaskRunnerProvider provider(nullptr);
-  CreateHostImplWithTaskRunnerProvider(DefaultSettings(), CreateOutputSurface(),
-                                       &provider);
+  CreateHostImplWithTaskRunnerProvider(DefaultSettings(),
+                                       CreateCompositorFrameSink(), &provider);
   EXPECT_TRUE(host_impl_->CommitToActiveTree());
 
   host_impl_->SetViewportSize(gfx::Size(50, 50));
 
   auto root_owned = LayerImpl::Create(host_impl_->active_tree(), 1);
   auto* root = root_owned.get();
   host_impl_->active_tree()->SetRootLayerForTesting(std::move(root_owned));
   root->SetBounds(gfx::Size(50, 50));
   root->SetHasRenderSurface(true);
 
@@ skipping 22 matching lines @@
 
   host_impl_->CommitComplete();
 
   // Animations on the active tree should be started and ticked, and a new frame
   // should be requested to continue ticking them.
   EXPECT_TRUE(did_request_next_frame_);
   EXPECT_TRUE(did_request_redraw_);
   EXPECT_FALSE(did_request_commit_);
 
   // Delete the LayerTreeHostImpl before the TaskRunnerProvider goes away.
-  host_impl_->ReleaseOutputSurface();
+  host_impl_->ReleaseCompositorFrameSink();
   host_impl_ = nullptr;
 }
 
 TEST_F(LayerTreeHostImplTest, AnimationSchedulingOnLayerDestruction) {
   host_impl_->SetViewportSize(gfx::Size(50, 50));
 
   host_impl_->active_tree()->SetRootLayerForTesting(
       LayerImpl::Create(host_impl_->active_tree(), 1));
   LayerImpl* root = *host_impl_->active_tree()->begin();
   root->SetBounds(gfx::Size(50, 50));
@@ skipping 221 matching lines @@
     std::unique_ptr<ScrollAndScaleSet> scroll_info =
         host_impl_->ProcessScrollDeltas();
     EXPECT_TRUE(ScrollInfoContains(
         *scroll_info.get(), scroll_layer->id(),
         gfx::Vector2d(0, scroll_delta.y() / page_scale_delta)));
   }
 }
 
 TEST_F(LayerTreeHostImplTest, ViewportScrollOrder) {
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings,
-                 CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
   host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 0.25f, 4.f);
 
   const gfx::Size content_size(1000, 1000);
   const gfx::Size viewport_size(500, 500);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   LayerImpl* outer_scroll_layer = host_impl_->OuterViewportScrollLayer();
   outer_scroll_layer->SetDrawsContent(true);
   LayerImpl* inner_scroll_layer = host_impl_->InnerViewportScrollLayer();
   inner_scroll_layer->SetDrawsContent(true);
@@ skipping 45 matching lines @@
       inner_scroll_layer->CurrentScrollOffset());
   EXPECT_VECTOR_EQ(
       gfx::Vector2dF(300, 300),
       outer_scroll_layer->CurrentScrollOffset());
 }
 
 // Make sure scrolls smaller than a unit applied to the viewport don't get
 // dropped. crbug.com/539334.
 TEST_F(LayerTreeHostImplTest, ScrollViewportWithFractionalAmounts) {
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
   host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 2.f);
 
   const gfx::Size content_size(1000, 1000);
   const gfx::Size viewport_size(500, 500);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   LayerImpl* outer_scroll_layer = host_impl_->OuterViewportScrollLayer();
   outer_scroll_layer->SetDrawsContent(true);
   LayerImpl* inner_scroll_layer = host_impl_->InnerViewportScrollLayer();
   inner_scroll_layer->SetDrawsContent(true);
@@ skipping 33 matching lines @@
       gfx::Vector2dF(0.25f, 0.25f),
       inner_scroll_layer->CurrentScrollOffset());
   host_impl_->ScrollEnd(EndState().get());
 }
 
 // Tests that scrolls during a pinch gesture (i.e. "two-finger" scrolls) work
 // as expected. That is, scrolling during a pinch should bubble from the inner
 // to the outer viewport.
 TEST_F(LayerTreeHostImplTest, ScrollDuringPinchGesture) {
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings,
-                 CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
   host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 2.f);
 
   const gfx::Size content_size(1000, 1000);
   const gfx::Size viewport_size(500, 500);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   LayerImpl* outer_scroll_layer = host_impl_->OuterViewportScrollLayer();
   outer_scroll_layer->SetDrawsContent(true);
   LayerImpl* inner_scroll_layer = host_impl_->InnerViewportScrollLayer();
   inner_scroll_layer->SetDrawsContent(true);
@@ skipping 40 matching lines @@
 
   host_impl_->PinchGestureEnd();
   host_impl_->ScrollEnd(EndState().get());
 }
 
 // Tests the "snapping" of pinch-zoom gestures to the screen edge. That is, when
 // a pinch zoom is anchored within a certain margin of the screen edge, we
 // should assume the user means to scroll into the edge of the screen.
 TEST_F(LayerTreeHostImplTest, PinchZoomSnapsToScreenEdge) {
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings,
-                 CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
   host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 2.f);
 
   const gfx::Size content_size(1000, 1000);
   const gfx::Size viewport_size(500, 500);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   int offsetFromEdge = Viewport::kPinchZoomSnapMarginDips - 5;
   gfx::Point anchor(viewport_size.width() - offsetFromEdge,
                     viewport_size.height() - offsetFromEdge);
 
@@ skipping 822 matching lines @@
     fake_current_physical_time_ = fake_now;
   }
 
  private:
   base::TimeTicks fake_current_physical_time_;
 };
 
 class LayerTreeHostImplTestScrollbarAnimation : public LayerTreeHostImplTest {
  protected:
   void SetupLayers(LayerTreeSettings settings) {
-    host_impl_->ReleaseOutputSurface();
+    host_impl_->ReleaseCompositorFrameSink();
     host_impl_ = nullptr;
 
     gfx::Size content_size(100, 100);
 
     LayerTreeHostImplOverridePhysicalTime* host_impl_override_time =
         new LayerTreeHostImplOverridePhysicalTime(
             settings, this, &task_runner_provider_, &shared_bitmap_manager_,
             &task_graph_runner_, &stats_instrumentation_);
     host_impl_ = base::WrapUnique(host_impl_override_time);
-    output_surface_ = CreateOutputSurface();
+    compositor_frame_sink_ = CreateCompositorFrameSink();
     host_impl_->SetVisible(true);
-    host_impl_->InitializeRenderer(output_surface_.get());
+    host_impl_->InitializeRenderer(compositor_frame_sink_.get());
 
     SetupScrollAndContentsLayers(content_size);
     host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 4.f);
     host_impl_->SetViewportSize(
         gfx::Size(content_size.width() / 2, content_size.height() / 2));
 
     std::unique_ptr<SolidColorScrollbarLayerImpl> scrollbar =
         SolidColorScrollbarLayerImpl::Create(host_impl_->active_tree(), 400,
                                              VERTICAL, 10, 0, false, true);
     scrollbar->test_properties()->opacity = 0.f;
@@ skipping 205 matching lines @@
   void RunTest(LayerTreeSettings::ScrollbarAnimator animator) {
     LayerTreeSettings settings = DefaultSettings();
     settings.scrollbar_animator = animator;
     settings.scrollbar_fade_delay_ms = 20;
     settings.scrollbar_fade_duration_ms = 20;
     gfx::Size content_size(100, 100);
 
     // If no animator is set, scrollbar won't show and no animation is expected.
     bool expecting_animations = animator != LayerTreeSettings::NO_ANIMATOR;
 
-    CreateHostImpl(settings, CreateOutputSurface());
+    CreateHostImpl(settings, CreateCompositorFrameSink());
     host_impl_->CreatePendingTree();
     CreateScrollAndContentsLayers(host_impl_->pending_tree(), content_size);
     std::unique_ptr<SolidColorScrollbarLayerImpl> scrollbar =
         SolidColorScrollbarLayerImpl::Create(host_impl_->pending_tree(), 400,
                                              VERTICAL, 10, 0, false, true);
     scrollbar->test_properties()->opacity = 0.f;
     LayerImpl* scroll = host_impl_->pending_tree()->OuterViewportScrollLayer();
     LayerImpl* container =
         host_impl_->pending_tree()->InnerViewportContainerLayer();
     scrollbar->SetScrollLayerId(scroll->id());
@@ skipping 68 matching lines @@
 TEST_F(LayerTreeHostImplTestScrollbarOpacity, Thinning) {
   RunTest(LayerTreeSettings::THINNING);
 }
 
 TEST_F(LayerTreeHostImplTestScrollbarOpacity, NoAnimator) {
   RunTest(LayerTreeSettings::NO_ANIMATOR);
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollbarInnerLargerThanOuter) {
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
 
   gfx::Size inner_viewport_size(315, 200);
   gfx::Size outer_viewport_size(300, 200);
   gfx::Size content_size(1000, 1000);
 
   const int horiz_id = 11;
   const int child_clip_id = 14;
   const int child_scroll_id = 15;
 
   CreateScrollAndContentsLayers(host_impl_->active_tree(), content_size);
@@ skipping 16 matching lines @@
   horiz_scrollbar->SetScrollLayerId(root_scroll->id());
 
   EXPECT_EQ(300, horiz_scrollbar->clip_layer_length());
 }
 
 TEST_F(LayerTreeHostImplTest, ScrollbarRegistration) {
   LayerTreeSettings settings = DefaultSettings();
   settings.scrollbar_animator = LayerTreeSettings::LINEAR_FADE;
   settings.scrollbar_fade_delay_ms = 20;
   settings.scrollbar_fade_duration_ms = 20;
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
 
   gfx::Size viewport_size(300, 200);
   gfx::Size content_size(1000, 1000);
 
   const int vert_1_id = 10;
   const int horiz_1_id = 11;
   const int vert_2_id = 12;
   const int horiz_2_id = 13;
   const int child_clip_id = 14;
   const int child_scroll_id = 15;
@@ skipping 107 matching lines @@
   settings.scrollbar_fade_delay_ms = 500;
   settings.scrollbar_fade_duration_ms = 300;
   settings.scrollbar_animator = LayerTreeSettings::THINNING;
 
   gfx::Size viewport_size(300, 200);
   gfx::Size device_viewport_size =
       gfx::ScaleToFlooredSize(viewport_size, device_scale_factor);
   gfx::Size content_size(1000, 1000);
   gfx::Size scrollbar_size(gfx::Size(15, viewport_size.height()));
 
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
   host_impl_->active_tree()->SetDeviceScaleFactor(device_scale_factor);
   host_impl_->SetViewportSize(device_viewport_size);
 
   CreateScrollAndContentsLayers(host_impl_->active_tree(), content_size);
   host_impl_->active_tree()->InnerViewportContainerLayer()->SetBounds(
       viewport_size);
   LayerImpl* root_scroll =
       host_impl_->active_tree()->OuterViewportScrollLayer();
   // The scrollbar is on the left side.
   std::unique_ptr<SolidColorScrollbarLayerImpl> scrollbar =
@@ skipping 596 matching lines @@
 
     LayerTreeHostImpl::FrameData frame;
     EXPECT_EQ(testcase.expected_result, host_impl_->PrepareToDraw(&frame));
     host_impl_->DrawLayers(&frame);
     host_impl_->DidDrawAllLayers(frame);
   }
 }
 
 TEST_F(LayerTreeHostImplTest,
        PrepareToDrawWhenDrawAndSwapFullViewportEveryFrame) {
-  CreateHostImpl(DefaultSettings(),
-                 FakeOutputSurface::CreateDelegatingSoftware());
+  CreateHostImpl(DefaultSettings(), FakeCompositorFrameSink::CreateSoftware());
 
   const gfx::Transform external_transform;
   const gfx::Rect external_viewport;
   const bool resourceless_software_draw = true;
   host_impl_->SetExternalTilePriorityConstraints(external_viewport,
                                                  external_transform);
 
   std::vector<PrepareToDrawSuccessTestCase> cases;
 
   // 0. Default case.
@@ skipping 95 matching lines @@
   LayerTreeHostImplTopControlsTest()
       // Make the clip size the same as the layer (content) size so the layer is
       // non-scrollable.
       : layer_size_(10, 10),
         clip_size_(layer_size_),
         top_controls_height_(50) {
     viewport_size_ = gfx::Size(clip_size_.width(),
                                clip_size_.height() + top_controls_height_);
   }
 
-  bool CreateHostImpl(const LayerTreeSettings& settings,
-                      std::unique_ptr<OutputSurface> output_surface) override {
+  bool CreateHostImpl(
+      const LayerTreeSettings& settings,
+      std::unique_ptr<CompositorFrameSink> compositor_frame_sink) override {
     bool init = LayerTreeHostImplTest::CreateHostImpl(
-        settings, std::move(output_surface));
+        settings, std::move(compositor_frame_sink));
     if (init) {
       host_impl_->active_tree()->set_top_controls_height(top_controls_height_);
       host_impl_->active_tree()->SetCurrentTopControlsShownRatio(1.f);
       host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 1.f, 1.f);
     }
     return init;
   }
 
   void SetupTopControlsAndScrollLayerWithVirtualViewport(
       const gfx::Size& inner_viewport_size,
       const gfx::Size& outer_viewport_size,
       const gfx::Size& scroll_layer_size) {
     settings_ = DefaultSettings();
-    CreateHostImpl(settings_, CreateOutputSurface());
+    CreateHostImpl(settings_, CreateCompositorFrameSink());
     SetupTopControlsAndScrollLayerWithVirtualViewport(
         host_impl_->active_tree(), inner_viewport_size, outer_viewport_size,
         scroll_layer_size);
   }
 
   void SetupTopControlsAndScrollLayerWithVirtualViewport(
       LayerTreeImpl* tree_impl,
       const gfx::Size& inner_viewport_size,
       const gfx::Size& outer_viewport_size,
       const gfx::Size& scroll_layer_size) {
@@ skipping 390 matching lines @@
   // Top controls should be hidden
   EXPECT_EQ(scroll_delta.y(),
             top_controls_height_ -
                 host_impl_->top_controls_manager()->ContentTopOffset());
 }
 
 // Ensure setting the top controls position explicitly using the setters on the
 // TreeImpl correctly affects the top controls manager and viewport bounds.
 TEST_F(LayerTreeHostImplTopControlsTest, PositionTopControlsExplicitly) {
   settings_ = DefaultSettings();
-  CreateHostImpl(settings_, CreateOutputSurface());
+  CreateHostImpl(settings_, CreateCompositorFrameSink());
   SetupTopControlsAndScrollLayerWithVirtualViewport(
       layer_size_, layer_size_, layer_size_);
   DrawFrame();
 
   host_impl_->active_tree()->SetCurrentTopControlsShownRatio(0.f);
   host_impl_->active_tree()->top_controls_shown_ratio()->PushFromMainThread(
       30.f / top_controls_height_);
   host_impl_->active_tree()->top_controls_shown_ratio()->PushPendingToActive();
   EXPECT_FLOAT_EQ(30.f, host_impl_->top_controls_manager()->ContentTopOffset());
   EXPECT_FLOAT_EQ(-20.f,
@@ skipping 12 matching lines @@
                                   ->parent->test_properties()
                                   ->parent;
   EXPECT_EQ(viewport_size_, inner_clip_ptr->bounds());
 }
 
 // Test that the top_controls delta and sent delta are appropriately
 // applied on sync tree activation. The total top controls offset shouldn't
 // change after the activation.
 TEST_F(LayerTreeHostImplTopControlsTest, ApplyDeltaOnTreeActivation) {
   settings_ = DefaultSettings();
-  CreateHostImpl(settings_, CreateOutputSurface());
+  CreateHostImpl(settings_, CreateCompositorFrameSink());
   SetupTopControlsAndScrollLayerWithVirtualViewport(
       layer_size_, layer_size_, layer_size_);
   DrawFrame();
 
   host_impl_->active_tree()->top_controls_shown_ratio()->PushFromMainThread(
       20.f / top_controls_height_);
   host_impl_->active_tree()->top_controls_shown_ratio()->PushPendingToActive();
   host_impl_->active_tree()->SetCurrentTopControlsShownRatio(
       15.f / top_controls_height_);
   host_impl_->active_tree()
@@ skipping 28 matching lines @@
       host_impl_->active_tree()->top_controls_shown_ratio()->ActiveBase() *
           top_controls_height_);
 }
 
 // Test that changing the top controls layout height is correctly applied to
 // the inner viewport container bounds. That is, the top controls layout
 // height is the amount that the inner viewport container was shrunk outside
 // the compositor to accommodate the top controls.
 TEST_F(LayerTreeHostImplTopControlsTest, TopControlsLayoutHeightChanged) {
   settings_ = DefaultSettings();
-  CreateHostImpl(settings_, CreateOutputSurface());
+  CreateHostImpl(settings_, CreateCompositorFrameSink());
   SetupTopControlsAndScrollLayerWithVirtualViewport(
       layer_size_, layer_size_, layer_size_);
   DrawFrame();
 
   host_impl_->sync_tree()->PushTopControlsFromMainThread(1.f);
   host_impl_->sync_tree()->set_top_controls_shrink_blink_size(true);
 
   host_impl_->active_tree()->top_controls_shown_ratio()->PushFromMainThread(
       1.f);
   host_impl_->active_tree()->top_controls_shown_ratio()->PushPendingToActive();
@@ skipping 211 matching lines @@
   EXPECT_FLOAT_EQ(
       inner_viewport_offset.y() + (scroll_delta.y() + top_controls_height_),
       ScrollDelta(host_impl_->InnerViewportScrollLayer()).y());
 
   host_impl_->ScrollEnd(EndState().get());
 }
 
 TEST_F(LayerTreeHostImplTopControlsTest,
        ScrollNonScrollableRootWithTopControls) {
   settings_ = DefaultSettings();
-  CreateHostImpl(settings_, CreateOutputSurface());
+  CreateHostImpl(settings_, CreateCompositorFrameSink());
   SetupTopControlsAndScrollLayerWithVirtualViewport(
       layer_size_, layer_size_, layer_size_);
   DrawFrame();
 
   EXPECT_EQ(InputHandler::SCROLL_ON_IMPL_THREAD,
             host_impl_
                 ->ScrollBegin(BeginState(gfx::Point()).get(),
                               InputHandler::TOUCHSCREEN)
                 .thread);
 
@@ skipping 1242 matching lines @@
   // sees the correct size of the new tree.
   gfx::Size new_size(42, 24);
   host_impl_->CreatePendingTree();
   host_impl_->pending_tree()->PushPageScaleFromMainThread(1.f, 1.f, 1.f);
   CreateScrollAndContentsLayers(host_impl_->pending_tree(), new_size);
   host_impl_->pending_tree()->BuildPropertyTreesForTesting();
   host_impl_->ActivateSyncTree();
   EXPECT_EQ(gfx::SizeF(new_size), scroll_watcher.scrollable_size());
 
   // Tear down the LayerTreeHostImpl before the InputHandlerClient.
-  host_impl_->ReleaseOutputSurface();
+  host_impl_->ReleaseCompositorFrameSink();
   host_impl_ = nullptr;
 }
 
 void CheckLayerScrollDelta(LayerImpl* layer, gfx::Vector2dF scroll_delta) {
   const gfx::Transform target_space_transform =
       layer->draw_properties().target_space_transform;
   EXPECT_TRUE(target_space_transform.IsScaleOrTranslation());
   gfx::Point translated_point;
   target_space_transform.TransformPoint(&translated_point);
   gfx::Point expected_point = gfx::Point() - ToRoundedVector2d(scroll_delta);
@@ skipping 274 matching lines @@
     EXPECT_FALSE(scroll_result.did_scroll);
     EXPECT_TRUE(scroll_result.did_overscroll_root);
     EXPECT_EQ(gfx::Vector2dF(0, 14), host_impl_->accumulated_root_overscroll());
     host_impl_->ScrollEnd(EndState().get());
   }
 }
 
 TEST_F(LayerTreeHostImplTest, OverscrollAlways) {
   InputHandlerScrollResult scroll_result;
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
 
   LayerImpl* scroll_layer = SetupScrollAndContentsLayers(gfx::Size(50, 50));
   LayerImpl* clip_layer =
       scroll_layer->test_properties()->parent->test_properties()->parent;
 
   clip_layer->SetBounds(gfx::Size(50, 50));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   host_impl_->SetViewportSize(gfx::Size(50, 50));
   host_impl_->active_tree()->PushPageScaleFromMainThread(1.f, 0.5f, 4.f);
@@ skipping 73 matching lines @@
     EXPECT_FALSE(scroll_result.did_overscroll_root);
     EXPECT_EQ(gfx::Vector2dF().ToString(),
               host_impl_->accumulated_root_overscroll().ToString());
     host_impl_->ScrollEnd(EndState().get());
   }
 }
 
 TEST_F(LayerTreeHostImplTest, OverscrollOnMainThread) {
   InputHandlerScrollResult scroll_result;
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
 
   const gfx::Size content_size(50, 50);
   const gfx::Size viewport_size(50, 50);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   LayerImpl* scroll_layer =
       host_impl_->active_tree()->InnerViewportScrollLayer();
   scroll_layer->set_main_thread_scrolling_reasons(
       MainThreadScrollingReason::kThreadedScrollingDisabled);
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
@@ skipping 147 matching lines @@
     EXPECT_VECTOR_EQ(gfx::Vector2dF(0.f, 0.f),
                      outer_scroll_layer->CurrentScrollOffset());
     EXPECT_VECTOR_EQ(gfx::Vector2dF(50.f, 50.f),
                      scroll_layer->CurrentScrollOffset());
   }
 }
 
 TEST_F(LayerTreeHostImplTest, OverscrollOnImplThread) {
   InputHandlerScrollResult scroll_result;
   LayerTreeSettings settings = DefaultSettings();
-  CreateHostImpl(settings, CreateOutputSurface());
+  CreateHostImpl(settings, CreateCompositorFrameSink());
 
   const gfx::Size content_size(50, 50);
   const gfx::Size viewport_size(50, 50);
   CreateBasicVirtualViewportLayers(viewport_size, content_size);
 
   // By default, no main thread scrolling reasons should exist.
   LayerImpl* scroll_layer =
       host_impl_->active_tree()->InnerViewportScrollLayer();
   EXPECT_EQ(MainThreadScrollingReason::kNotScrollingOnMain,
             scroll_layer->main_thread_scrolling_reasons());
@@ skipping 400 matching lines @@
   EXPECT_TRUE(MayContainVideoBitSetOnFrameData(host_impl_.get()));
 }
 
 class LayerTreeHostImplViewportCoveredTest : public LayerTreeHostImplTest {
  protected:
   LayerTreeHostImplViewportCoveredTest() :
       gutter_quad_material_(DrawQuad::SOLID_COLOR),
       child_(NULL),
       did_activate_pending_tree_(false) {}
 
-  std::unique_ptr<OutputSurface> CreateFakeOutputSurface(bool software) {
+  std::unique_ptr<CompositorFrameSink> CreateFakeCompositorFrameSink(
+      bool software) {
     if (software)
-      return FakeOutputSurface::CreateDelegatingSoftware();
-    return FakeOutputSurface::CreateDelegating3d();
+      return FakeCompositorFrameSink::CreateSoftware();
+    return FakeCompositorFrameSink::Create3d();
   }
 
   void SetupActiveTreeLayers() {
     host_impl_->active_tree()->set_background_color(SK_ColorGRAY);
     host_impl_->active_tree()->SetRootLayerForTesting(
         LayerImpl::Create(host_impl_->active_tree(), 1));
     host_impl_->active_tree()
         ->root_layer_for_testing()
         ->test_properties()
         ->force_render_surface = true;
@@ skipping 195 matching lines @@
   gfx::Size gutter_texture_size_;
   gfx::Size viewport_size_;
   BlendStateCheckLayer* child_;
   bool did_activate_pending_tree_;
 };
 
 TEST_F(LayerTreeHostImplViewportCoveredTest, ViewportCovered) {
   viewport_size_ = gfx::Size(1000, 1000);
 
   bool software = false;
-  CreateHostImpl(DefaultSettings(), CreateFakeOutputSurface(software));
+  CreateHostImpl(DefaultSettings(), CreateFakeCompositorFrameSink(software));
 
   host_impl_->SetViewportSize(DipSizeToPixelSize(viewport_size_));
   SetupActiveTreeLayers();
   EXPECT_SCOPED(TestLayerCoversFullViewport());
   EXPECT_SCOPED(TestEmptyLayer());
   EXPECT_SCOPED(TestLayerInMiddleOfViewport());
   EXPECT_SCOPED(TestLayerIsLargerThanViewport());
 }
 
 TEST_F(LayerTreeHostImplViewportCoveredTest, ViewportCoveredScaled) {
   viewport_size_ = gfx::Size(1000, 1000);
 
   bool software = false;
-  CreateHostImpl(DefaultSettings(), CreateFakeOutputSurface(software));
+  CreateHostImpl(DefaultSettings(), CreateFakeCompositorFrameSink(software));
 
   host_impl_->active_tree()->SetDeviceScaleFactor(2.f);
   host_impl_->SetViewportSize(DipSizeToPixelSize(viewport_size_));
   SetupActiveTreeLayers();
   EXPECT_SCOPED(TestLayerCoversFullViewport());
   EXPECT_SCOPED(TestEmptyLayer());
   EXPECT_SCOPED(TestLayerInMiddleOfViewport());
   EXPECT_SCOPED(TestLayerIsLargerThanViewport());
 }
 
 TEST_F(LayerTreeHostImplViewportCoveredTest, ActiveTreeGrowViewportInvalid) {
   viewport_size_ = gfx::Size(1000, 1000);
 
   bool software = true;
-  CreateHostImpl(DefaultSettings(), CreateFakeOutputSurface(software));
+  CreateHostImpl(DefaultSettings(), CreateFakeCompositorFrameSink(software));
 
   // Pending tree to force active_tree size invalid. Not used otherwise.
   host_impl_->CreatePendingTree();
   host_impl_->SetViewportSize(DipSizeToPixelSize(viewport_size_));
   EXPECT_TRUE(host_impl_->active_tree()->ViewportSizeInvalid());
 
   SetupActiveTreeLayers();
   EXPECT_SCOPED(TestEmptyLayerWithOnDraw());
   EXPECT_SCOPED(TestLayerInMiddleOfViewportWithOnDraw());
   EXPECT_SCOPED(TestLayerIsLargerThanViewportWithOnDraw());
 }
 
 TEST_F(LayerTreeHostImplViewportCoveredTest, ActiveTreeShrinkViewportInvalid) {
   viewport_size_ = gfx::Size(1000, 1000);
 
   bool software = true;
-  CreateHostImpl(DefaultSettings(), CreateFakeOutputSurface(software));
+  CreateHostImpl(DefaultSettings(), CreateFakeCompositorFrameSink(software));
 
   // Set larger viewport and activate it to active tree.
   host_impl_->CreatePendingTree();
   gfx::Size larger_viewport(viewport_size_.width() + 100,
                             viewport_size_.height() + 100);
   host_impl_->SetViewportSize(DipSizeToPixelSize(larger_viewport));
   EXPECT_TRUE(host_impl_->active_tree()->ViewportSizeInvalid());
   host_impl_->ActivateSyncTree();
   EXPECT_TRUE(did_activate_pending_tree_);
   EXPECT_FALSE(host_impl_->active_tree()->ViewportSizeInvalid());
@@ skipping 20 matching lines @@
 };
 
 // Make sure damage tracking propagates all the way to the graphics context,
 // where it should request to swap only the sub-buffer that is damaged.
 TEST_F(LayerTreeHostImplTest, PartialSwapReceivesDamageRect) {
   scoped_refptr<TestContextProvider> context_provider(
       TestContextProvider::Create());
   context_provider->BindToCurrentThread();
   context_provider->TestContext3d()->set_have_post_sub_buffer(true);
 
-  std::unique_ptr<FakeOutputSurface> output_surface(
-      FakeOutputSurface::CreateDelegating3d(context_provider));
-  FakeOutputSurface* fake_output_surface = output_surface.get();
+  std::unique_ptr<FakeCompositorFrameSink> compositor_frame_sink(
+      FakeCompositorFrameSink::Create3d(context_provider));
+  FakeCompositorFrameSink* fake_compositor_frame_sink =
+      compositor_frame_sink.get();
 
   // This test creates its own LayerTreeHostImpl, so
   // that we can force partial swap enabled.
   LayerTreeSettings settings = DefaultSettings();
   settings.renderer_settings.partial_swap_enabled = true;
   std::unique_ptr<LayerTreeHostImpl> layer_tree_host_impl =
       LayerTreeHostImpl::Create(
           settings, this, &task_runner_provider_, &stats_instrumentation_,
           &shared_bitmap_manager_, NULL, &task_graph_runner_,
           AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0);
   layer_tree_host_impl->SetVisible(true);
-  layer_tree_host_impl->InitializeRenderer(output_surface.get());
+  layer_tree_host_impl->InitializeRenderer(compositor_frame_sink.get());
   layer_tree_host_impl->WillBeginImplFrame(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE));
   layer_tree_host_impl->SetViewportSize(gfx::Size(500, 500));
 
   std::unique_ptr<LayerImpl> root =
       FakeDrawableLayerImpl::Create(layer_tree_host_impl->active_tree(), 1);
   root->test_properties()->force_render_surface = true;
   std::unique_ptr<LayerImpl> child =
       FakeDrawableLayerImpl::Create(layer_tree_host_impl->active_tree(), 2);
   child->SetPosition(gfx::PointF(12.f, 13.f));
   child->SetBounds(gfx::Size(14, 15));
   child->SetDrawsContent(true);
   root->SetBounds(gfx::Size(500, 500));
   root->SetDrawsContent(true);
   root->test_properties()->AddChild(std::move(child));
   layer_tree_host_impl->active_tree()->SetRootLayerForTesting(std::move(root));
   layer_tree_host_impl->active_tree()->BuildPropertyTreesForTesting();
 
   LayerTreeHostImpl::FrameData frame;
 
   // First frame, the entire screen should get swapped.
   EXPECT_EQ(DRAW_SUCCESS, layer_tree_host_impl->PrepareToDraw(&frame));
   layer_tree_host_impl->DrawLayers(&frame);
   layer_tree_host_impl->DidDrawAllLayers(frame);
   gfx::Rect expected_swap_rect(500, 500);
   EXPECT_EQ(expected_swap_rect.ToString(),
-            fake_output_surface->last_swap_rect().ToString());
+            fake_compositor_frame_sink->last_swap_rect().ToString());
 
   // Second frame, only the damaged area should get swapped. Damage should be
   // the union of old and new child rects: gfx::Rect(26, 28).
   layer_tree_host_impl->active_tree()
       ->root_layer_for_testing()
       ->test_properties()
       ->children[0]
       ->SetPosition(gfx::PointF());
   layer_tree_host_impl->active_tree()
       ->root_layer_for_testing()
       ->test_properties()
       ->children[0]
       ->NoteLayerPropertyChanged();
   layer_tree_host_impl->active_tree()->BuildPropertyTreesForTesting();
   EXPECT_EQ(DRAW_SUCCESS, layer_tree_host_impl->PrepareToDraw(&frame));
   layer_tree_host_impl->DrawLayers(&frame);
   host_impl_->DidDrawAllLayers(frame);
 
   expected_swap_rect = gfx::Rect(26, 28);
   EXPECT_EQ(expected_swap_rect.ToString(),
-            fake_output_surface->last_swap_rect().ToString());
+            fake_compositor_frame_sink->last_swap_rect().ToString());
 
   layer_tree_host_impl->SetViewportSize(gfx::Size(10, 10));
   // This will damage everything.
   layer_tree_host_impl->active_tree()
       ->root_layer_for_testing()
       ->SetBackgroundColor(SK_ColorBLACK);
   EXPECT_EQ(DRAW_SUCCESS, layer_tree_host_impl->PrepareToDraw(&frame));
   layer_tree_host_impl->DrawLayers(&frame);
   host_impl_->DidDrawAllLayers(frame);
 
   expected_swap_rect = gfx::Rect(10, 10);
   EXPECT_EQ(expected_swap_rect.ToString(),
-            fake_output_surface->last_swap_rect().ToString());
+            fake_compositor_frame_sink->last_swap_rect().ToString());
 
-  layer_tree_host_impl->ReleaseOutputSurface();
+  layer_tree_host_impl->ReleaseCompositorFrameSink();
 }
 
 TEST_F(LayerTreeHostImplTest, RootLayerDoesntCreateExtraSurface) {
   std::unique_ptr<LayerImpl> root =
       FakeDrawableLayerImpl::Create(host_impl_->active_tree(), 1);
   std::unique_ptr<LayerImpl> child =
       FakeDrawableLayerImpl::Create(host_impl_->active_tree(), 2);
   child->SetBounds(gfx::Size(10, 10));
   child->SetDrawsContent(true);
   root->SetBounds(gfx::Size(10, 10));
@@ skipping 39 matching lines @@
 };
 
 static std::unique_ptr<LayerTreeHostImpl> SetupLayersForOpacity(
     LayerTreeSettings settings,
     bool partial_swap,
     LayerTreeHostImplClient* client,
     TaskRunnerProvider* task_runner_provider,
     SharedBitmapManager* manager,
     TaskGraphRunner* task_graph_runner,
     RenderingStatsInstrumentation* stats_instrumentation,
-    OutputSurface* output_surface) {
+    CompositorFrameSink* compositor_frame_sink) {
   settings.renderer_settings.partial_swap_enabled = partial_swap;
   std::unique_ptr<LayerTreeHostImpl> my_host_impl = LayerTreeHostImpl::Create(
       settings, client, task_runner_provider, stats_instrumentation, manager,
       nullptr, task_graph_runner,
       AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0);
   my_host_impl->SetVisible(true);
-  my_host_impl->InitializeRenderer(output_surface);
+  my_host_impl->InitializeRenderer(compositor_frame_sink);
   my_host_impl->WillBeginImplFrame(
       CreateBeginFrameArgsForTesting(BEGINFRAME_FROM_HERE));
   my_host_impl->SetViewportSize(gfx::Size(100, 100));
 
   /*
     Layers are created as follows:
 
     +--------------------+
     |                  1 |
     |  +-----------+     |
@@ skipping 45 matching lines @@
   my_host_impl->active_tree()->BuildPropertyTreesForTesting();
   return my_host_impl;
 }
 
 TEST_F(LayerTreeHostImplTest, ContributingLayerEmptyScissorPartialSwap) {
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
   scoped_refptr<TestContextProvider> provider(TestContextProvider::Create());
   provider->BindToCurrentThread();
   provider->TestContext3d()->set_have_post_sub_buffer(true);
-  std::unique_ptr<OutputSurface> output_surface(
-      FakeOutputSurface::CreateDelegating3d(provider));
+  std::unique_ptr<CompositorFrameSink> compositor_frame_sink(
+      FakeCompositorFrameSink::Create3d(provider));
   std::unique_ptr<LayerTreeHostImpl> my_host_impl = SetupLayersForOpacity(
       DefaultSettings(), true, this, &task_runner_provider_,
       &shared_bitmap_manager, &task_graph_runner, &stats_instrumentation_,
-      output_surface.get());
+      compositor_frame_sink.get());
   {
     LayerTreeHostImpl::FrameData frame;
     EXPECT_EQ(DRAW_SUCCESS, my_host_impl->PrepareToDraw(&frame));
 
     // Verify all quads have been computed
     ASSERT_EQ(2U, frame.render_passes.size());
     ASSERT_EQ(1U, frame.render_passes[0]->quad_list.size());
     ASSERT_EQ(1U, frame.render_passes[1]->quad_list.size());
     EXPECT_EQ(DrawQuad::SOLID_COLOR,
               frame.render_passes[0]->quad_list.front()->material);
     EXPECT_EQ(DrawQuad::RENDER_PASS,
               frame.render_passes[1]->quad_list.front()->material);
 
     my_host_impl->DrawLayers(&frame);
     my_host_impl->DidDrawAllLayers(frame);
   }
-  my_host_impl->ReleaseOutputSurface();
+  my_host_impl->ReleaseCompositorFrameSink();
 }
 
 TEST_F(LayerTreeHostImplTest, ContributingLayerEmptyScissorNoPartialSwap) {
   TestSharedBitmapManager shared_bitmap_manager;
   TestTaskGraphRunner task_graph_runner;
   scoped_refptr<TestContextProvider> provider(TestContextProvider::Create());
   provider->BindToCurrentThread();
   provider->TestContext3d()->set_have_post_sub_buffer(true);
-  std::unique_ptr<OutputSurface> output_surface(
-      FakeOutputSurface::CreateDelegating3d(provider));
+  std::unique_ptr<CompositorFrameSink> compositor_frame_sink(
+      FakeCompositorFrameSink::Create3d(provider));
   std::unique_ptr<LayerTreeHostImpl> my_host_impl = SetupLayersForOpacity(
       DefaultSettings(), false, this, &task_runner_provider_,
       &shared_bitmap_manager, &task_graph_runner, &stats_instrumentation_,
-      output_surface.get());
+      compositor_frame_sink.get());
   {
     LayerTreeHostImpl::FrameData frame;
     EXPECT_EQ(DRAW_SUCCESS, my_host_impl->PrepareToDraw(&frame));
 
     // Verify all quads have been computed
     ASSERT_EQ(2U, frame.render_passes.size());
     ASSERT_EQ(1U, frame.render_passes[0]->quad_list.size());
     ASSERT_EQ(1U, frame.render_passes[1]->quad_list.size());
     EXPECT_EQ(DrawQuad::SOLID_COLOR,
               frame.render_passes[0]->quad_list.front()->material);
     EXPECT_EQ(DrawQuad::RENDER_PASS,
               frame.render_passes[1]->quad_list.front()->material);
 
     my_host_impl->DrawLayers(&frame);
     my_host_impl->DidDrawAllLayers(frame);
   }
-  my_host_impl->ReleaseOutputSurface();
+  my_host_impl->ReleaseCompositorFrameSink();
 }
 
 TEST_F(LayerTreeHostImplTest, LayersFreeTextures) {
   std::unique_ptr<TestWebGraphicsContext3D> context =
       TestWebGraphicsContext3D::Create();
   TestWebGraphicsContext3D* context3d = context.get();
-  std::unique_ptr<OutputSurface> output_surface(
-      FakeOutputSurface::CreateDelegating3d(std::move(context)));
-  CreateHostImpl(DefaultSettings(), std::move(output_surface));
+  std::unique_ptr<CompositorFrameSink> compositor_frame_sink(
+      FakeCompositorFrameSink::Create3d(std::move(context)));
+  CreateHostImpl(DefaultSettings(), std::move(compositor_frame_sink));
 
   std::unique_ptr<LayerImpl> root_layer =
       LayerImpl::Create(host_impl_->active_tree(), 1);
   root_layer->SetBounds(gfx::Size(10, 10));
   root_layer->test_properties()->force_render_surface = true;
 
   scoped_refptr<VideoFrame> softwareFrame =
       media::VideoFrame::CreateColorFrame(
           gfx::Size(4, 4), 0x80, 0x80, 0x80, base::TimeDelta());
   FakeVideoFrameProvider provider;
@@ skipping 57 matching lines @@
   host_impl_->SetFullViewportDamage();
   EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
   {
     const auto& root_pass = frame.render_passes.back();
     ASSERT_EQ(0u, root_pass->quad_list.size());
   }
   host_impl_->DrawLayers(&frame);
   host_impl_->DidDrawAllLayers(frame);
 }
 
-class LayerTreeHostImplTestWithDelegatingRenderer
-    : public LayerTreeHostImplTest {
+class LayerTreeHostImplTestDrawAndTestDamage : public LayerTreeHostImplTest {
  protected:
-  std::unique_ptr<OutputSurface> CreateOutputSurface() override {
-    return FakeOutputSurface::CreateDelegating3d();
+  std::unique_ptr<CompositorFrameSink> CreateCompositorFrameSink() override {
+    return FakeCompositorFrameSink::Create3d();
   }
 
   void DrawFrameAndTestDamage(const gfx::Rect& expected_damage) {
     bool expect_to_draw = !expected_damage.IsEmpty();
 
     LayerTreeHostImpl::FrameData frame;
     EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
 
     if (!expect_to_draw) {
       // With no damage, we don't draw, and no quads are created.
@@ skipping 21 matching lines @@
       gfx::Rect expected_root_visible_rect(root->bounds());
       EXPECT_EQ(expected_root_visible_rect,
                 root_render_pass->quad_list.ElementAt(1)->visible_rect);
     }
 
     EXPECT_EQ(expect_to_draw, host_impl_->DrawLayers(&frame));
     host_impl_->DidDrawAllLayers(frame);
   }
 };
 
-TEST_F(LayerTreeHostImplTestWithDelegatingRenderer, FrameIncludesDamageRect) {
+TEST_F(LayerTreeHostImplTestDrawAndTestDamage, FrameIncludesDamageRect) {
   std::unique_ptr<SolidColorLayerImpl> root =
       SolidColorLayerImpl::Create(host_impl_->active_tree(), 1);
   root->SetPosition(gfx::PointF());
   root->SetBounds(gfx::Size(10, 10));
   root->SetDrawsContent(true);
   root->test_properties()->force_render_surface = true;
 
   // Child layer is in the bottom right corner.
   std::unique_ptr<SolidColorLayerImpl> child =
       SolidColorLayerImpl::Create(host_impl_->active_tree(), 2);
@@ skipping 141 matching lines @@
     ++frames_ended_;
   }
 
   int frames_began_, frames_ended_;
 };
 
 TEST_F(LayerTreeHostImplTest,
        ForcedDrawToSoftwareDeviceSkipsUnsupportedLayers) {
   set_reduce_memory_result(false);
   EXPECT_TRUE(CreateHostImpl(DefaultSettings(),
-                             FakeOutputSurface::CreateDelegatingSoftware()));
+                             FakeCompositorFrameSink::CreateSoftware()));
 
   const gfx::Transform external_transform;
   const gfx::Rect external_viewport;
   const bool resourceless_software_draw = true;
   host_impl_->SetExternalTilePriorityConstraints(external_viewport,
                                                  external_transform);
 
   // SolidColorLayerImpl will be drawn.
   std::unique_ptr<SolidColorLayerImpl> root_layer =
       SolidColorLayerImpl::Create(host_impl_->active_tree(), 1);
@@ skipping 11 matching lines @@
   host_impl_->OnDraw(external_transform, external_viewport,
                      resourceless_software_draw);
 
   EXPECT_EQ(1u, last_on_draw_frame_->will_draw_layers.size());
   EXPECT_EQ(host_impl_->active_tree()->root_layer_for_testing(),
             last_on_draw_frame_->will_draw_layers[0]);
 }
 
 // Checks that we use the memory limits provided.
 TEST_F(LayerTreeHostImplTest, MemoryLimits) {
-  host_impl_->ReleaseOutputSurface();
+  host_impl_->ReleaseCompositorFrameSink();
   host_impl_ = nullptr;
 
   const size_t kGpuByteLimit = 1234321;
   const size_t kSoftwareByteLimit = 4321234;
   const size_t kGpuResourceLimit = 2345432;
   const size_t kSoftwareResourceLimit = 5432345;
   const gpu::MemoryAllocation::PriorityCutoff kGpuCutoff =
       gpu::MemoryAllocation::CUTOFF_ALLOW_EVERYTHING;
   const gpu::MemoryAllocation::PriorityCutoff kSoftwareCutoff =
       gpu::MemoryAllocation::CUTOFF_ALLOW_NICE_TO_HAVE;
@@ skipping 13 matching lines @@
   settings.gpu_memory_policy =
       ManagedMemoryPolicy(kGpuByteLimit, kGpuCutoff, kGpuResourceLimit);
   settings.software_memory_policy = ManagedMemoryPolicy(
       kSoftwareByteLimit, kSoftwareCutoff, kSoftwareResourceLimit);
   host_impl_ = LayerTreeHostImpl::Create(
       settings, this, &task_runner_provider_, &stats_instrumentation_,
       &shared_bitmap_manager_, &gpu_memory_buffer_manager_, &task_graph_runner_,
       AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0);
 
   // Gpu compositing.
-  output_surface_ =
-      FakeOutputSurface::CreateDelegating3d(TestWebGraphicsContext3D::Create());
+  compositor_frame_sink_ =
+      FakeCompositorFrameSink::Create3d(TestWebGraphicsContext3D::Create());
   host_impl_->SetVisible(true);
-  host_impl_->InitializeRenderer(output_surface_.get());
+  host_impl_->InitializeRenderer(compositor_frame_sink_.get());
   {
     const auto& state = host_impl_->global_tile_state();
     EXPECT_EQ(kGpuByteLimit, state.hard_memory_limit_in_bytes);
     EXPECT_EQ(kGpuResourceLimit, state.num_resources_limit);
     EXPECT_EQ(kGpuTileCutoff, state.memory_limit_policy);
   }
 
   // Not visible, drops to 0.
   host_impl_->SetVisible(false);
   {
     const auto& state = host_impl_->global_tile_state();
     EXPECT_EQ(0u, state.hard_memory_limit_in_bytes);
     EXPECT_EQ(kGpuResourceLimit, state.num_resources_limit);
     EXPECT_EQ(kNothingTileCutoff, state.memory_limit_policy);
   }
 
   // Visible, is the gpu limit again.
   host_impl_->SetVisible(true);
   {
     const auto& state = host_impl_->global_tile_state();
     EXPECT_EQ(kGpuByteLimit, state.hard_memory_limit_in_bytes);
     EXPECT_EQ(kGpuResourceLimit, state.num_resources_limit);
   }
 
   // Software compositing.
-  host_impl_->ReleaseOutputSurface();
-  output_surface_ = FakeOutputSurface::CreateDelegatingSoftware();
-  host_impl_->InitializeRenderer(output_surface_.get());
+  host_impl_->ReleaseCompositorFrameSink();
+  compositor_frame_sink_ = FakeCompositorFrameSink::CreateSoftware();
+  host_impl_->InitializeRenderer(compositor_frame_sink_.get());
   {
     const auto& state = host_impl_->global_tile_state();
     EXPECT_EQ(kSoftwareByteLimit, state.hard_memory_limit_in_bytes);
     EXPECT_EQ(kSoftwareResourceLimit, state.num_resources_limit);
     EXPECT_EQ(kSoftwareTileCutoff, state.memory_limit_policy);
   }
 
   // Not visible, drops to 0.
   host_impl_->SetVisible(false);
   {
@@ skipping 63 matching lines @@
   EXPECT_TRUE(host_impl_->RequiresHighResToDraw());
 }
 
 class LayerTreeHostImplTestPrepareTiles : public LayerTreeHostImplTest {
  public:
   void SetUp() override {
     fake_host_impl_ =
         new FakeLayerTreeHostImpl(LayerTreeSettings(), &task_runner_provider_,
                                   &shared_bitmap_manager_, &task_graph_runner_);
     host_impl_.reset(fake_host_impl_);
-    output_surface_ = CreateOutputSurface();
+    compositor_frame_sink_ = CreateCompositorFrameSink();
     host_impl_->SetVisible(true);
-    host_impl_->InitializeRenderer(output_surface_.get());
+    host_impl_->InitializeRenderer(compositor_frame_sink_.get());
     host_impl_->SetViewportSize(gfx::Size(10, 10));
   }
 
   FakeLayerTreeHostImpl* fake_host_impl_;
 };
 
 TEST_F(LayerTreeHostImplTestPrepareTiles, PrepareTilesWhenInvisible) {
   EXPECT_TRUE(fake_host_impl_->prepare_tiles_needed());
   host_impl_->SetVisible(false);
   EXPECT_FALSE(fake_host_impl_->prepare_tiles_needed());
   host_impl_->SetVisible(true);
   EXPECT_TRUE(fake_host_impl_->prepare_tiles_needed());
 }
 
 TEST_F(LayerTreeHostImplTest, UIResourceManagement) {
   std::unique_ptr<TestWebGraphicsContext3D> context =
       TestWebGraphicsContext3D::Create();
   TestWebGraphicsContext3D* context3d = context.get();
-  std::unique_ptr<FakeOutputSurface> output_surface =
-      FakeOutputSurface::CreateDelegating3d();
-  CreateHostImpl(DefaultSettings(), std::move(output_surface));
+  std::unique_ptr<FakeCompositorFrameSink> compositor_frame_sink =
+      FakeCompositorFrameSink::Create3d();
+  CreateHostImpl(DefaultSettings(), std::move(compositor_frame_sink));
 
   EXPECT_EQ(0u, context3d->NumTextures());
 
   UIResourceId ui_resource_id = 1;
   bool is_opaque = false;
   UIResourceBitmap bitmap(gfx::Size(1, 1), is_opaque);
   host_impl_->CreateUIResource(ui_resource_id, bitmap);
   EXPECT_EQ(1u, context3d->NumTextures());
   ResourceId id1 = host_impl_->ResourceIdForUIResource(ui_resource_id);
   EXPECT_NE(0u, id1);
@@ skipping 21 matching lines @@
 
   // Should not change state for multiple deletion on one UIResourceId
   host_impl_->DeleteUIResource(ui_resource_id);
   EXPECT_EQ(0u, context3d->NumTextures());
 }
 
 TEST_F(LayerTreeHostImplTest, CreateETC1UIResource) {
   std::unique_ptr<TestWebGraphicsContext3D> context =
       TestWebGraphicsContext3D::Create();
   TestWebGraphicsContext3D* context3d = context.get();
-  CreateHostImpl(DefaultSettings(), FakeOutputSurface::CreateDelegating3d());
+  CreateHostImpl(DefaultSettings(), FakeCompositorFrameSink::Create3d());
 
   EXPECT_EQ(0u, context3d->NumTextures());
 
   gfx::Size size(4, 4);
   // SkImageInfo has no support for ETC1.  The |info| below contains the right
   // total pixel size for the bitmap but not the right height and width.  The
   // correct width/height are passed directly to UIResourceBitmap.
   SkImageInfo info =
       SkImageInfo::Make(4, 2, kAlpha_8_SkColorType, kPremul_SkAlphaType);
   sk_sp<SkPixelRef> pixel_ref(SkMallocPixelRef::NewAllocate(info, 0, 0));
   pixel_ref->setImmutable();
   UIResourceBitmap bitmap(std::move(pixel_ref), size);
   UIResourceId ui_resource_id = 1;
   host_impl_->CreateUIResource(ui_resource_id, bitmap);
   EXPECT_EQ(1u, context3d->NumTextures());
   ResourceId id1 = host_impl_->ResourceIdForUIResource(ui_resource_id);
   EXPECT_NE(0u, id1);
 }
 
 void ShutdownReleasesContext_Callback(
     std::unique_ptr<CopyOutputResult> result) {}
 
 TEST_F(LayerTreeHostImplTest, ShutdownReleasesContext) {
   scoped_refptr<TestContextProvider> context_provider =
       TestContextProvider::Create();
 
   CreateHostImpl(
       DefaultSettings(),
-      base::MakeUnique<TestDelegatingOutputSurface>(
+      base::MakeUnique<TestCompositorFrameSink>(
           context_provider, TestContextProvider::CreateWorker(),
           FakeOutputSurface::Create3d(context_provider), nullptr, nullptr,
           RendererSettings(), base::ThreadTaskRunnerHandle::Get().get(),
           true /* synchronous_composite */,
           false /* force_disable_reclaim_resources */));
 
   SetupRootLayerImpl(LayerImpl::Create(host_impl_->active_tree(), 1));
 
   LayerImpl* root = host_impl_->active_tree()->root_layer_for_testing();
   root->test_properties()->copy_requests.push_back(
       CopyOutputRequest::CreateRequest(
           base::Bind(&ShutdownReleasesContext_Callback)));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   LayerTreeHostImpl::FrameData frame;
   EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
   host_impl_->DrawLayers(&frame);
   host_impl_->DidDrawAllLayers(frame);
 
   // The CopyOutputResult's callback has a ref on the ContextProvider and a
   // texture in a texture mailbox.
   EXPECT_FALSE(context_provider->HasOneRef());
   EXPECT_EQ(1u, context_provider->TestContext3d()->NumTextures());
 
-  host_impl_->ReleaseOutputSurface();
+  host_impl_->ReleaseCompositorFrameSink();
   host_impl_ = nullptr;
 
   // The CopyOutputResult's callback was cancelled, the CopyOutputResult
   // released, and the texture deleted.
   EXPECT_TRUE(context_provider->HasOneRef());
   EXPECT_EQ(0u, context_provider->TestContext3d()->NumTextures());
 }
 
 TEST_F(LayerTreeHostImplTest, TouchFlingShouldNotBubble) {
   // When flinging via touch, only the child should scroll (we should not
@@ skipping 410 matching lines @@
   std::unique_ptr<SolidColorLayerImpl> root =
       SolidColorLayerImpl::Create(host_impl_->active_tree(), 1);
   root->SetPosition(gfx::PointF());
   root->SetBounds(gfx::Size(10, 10));
   root->SetDrawsContent(true);
   root->test_properties()->force_render_surface = true;
 
   host_impl_->active_tree()->SetRootLayerForTesting(std::move(root));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
-  FakeOutputSurface* fake_output_surface =
-      static_cast<FakeOutputSurface*>(host_impl_->output_surface());
+  FakeCompositorFrameSink* fake_compositor_frame_sink =
+      static_cast<FakeCompositorFrameSink*>(
+          host_impl_->compositor_frame_sink());
 
   ui::LatencyInfo latency_info;
   latency_info.AddLatencyNumber(
       ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0, 0);
   std::unique_ptr<SwapPromise> swap_promise(
       new LatencyInfoSwapPromise(latency_info));
   host_impl_->active_tree()->QueuePinnedSwapPromise(std::move(swap_promise));
 
   gfx::Rect full_frame_damage(host_impl_->DrawViewportSize());
   LayerTreeHostImpl::FrameData frame;
   EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
   EXPECT_TRUE(host_impl_->DrawLayers(&frame));
   host_impl_->DidDrawAllLayers(frame);
 
   const std::vector<ui::LatencyInfo>& metadata_latency_after =
-      fake_output_surface->last_sent_frame()->metadata.latency_info;
+      fake_compositor_frame_sink->last_sent_frame()->metadata.latency_info;
   EXPECT_EQ(1u, metadata_latency_after.size());
   EXPECT_TRUE(metadata_latency_after[0].FindLatency(
       ui::INPUT_EVENT_LATENCY_BEGIN_RWH_COMPONENT, 0, NULL));
 }
 
 TEST_F(LayerTreeHostImplTest, SelectionBoundsPassedToCompositorFrameMetadata) {
   int root_layer_id = 1;
   std::unique_ptr<SolidColorLayerImpl> root =
       SolidColorLayerImpl::Create(host_impl_->active_tree(), root_layer_id);
   root->SetPosition(gfx::PointF());
   root->SetBounds(gfx::Size(10, 10));
   root->SetDrawsContent(true);
   root->test_properties()->force_render_surface = true;
 
   host_impl_->active_tree()->SetRootLayerForTesting(std::move(root));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   // Ensure the default frame selection bounds are empty.
-  FakeOutputSurface* fake_output_surface =
-      static_cast<FakeOutputSurface*>(host_impl_->output_surface());
+  FakeCompositorFrameSink* fake_compositor_frame_sink =
+      static_cast<FakeCompositorFrameSink*>(
+          host_impl_->compositor_frame_sink());
 
   // Plumb the layer-local selection bounds.
   gfx::Point selection_top(5, 0);
   gfx::Point selection_bottom(5, 5);
   LayerSelection selection;
   selection.start.type = gfx::SelectionBound::CENTER;
   selection.start.layer_id = root_layer_id;
   selection.start.edge_bottom = selection_bottom;
   selection.start.edge_top = selection_top;
   selection.end = selection.start;
   host_impl_->active_tree()->RegisterSelection(selection);
 
   // Trigger a draw-swap sequence.
   host_impl_->SetNeedsRedraw();
 
   gfx::Rect full_frame_damage(host_impl_->DrawViewportSize());
   LayerTreeHostImpl::FrameData frame;
   EXPECT_EQ(DRAW_SUCCESS, host_impl_->PrepareToDraw(&frame));
   EXPECT_TRUE(host_impl_->DrawLayers(&frame));
   host_impl_->DidDrawAllLayers(frame);
 
   // Ensure the selection bounds have propagated to the frame metadata.
   const Selection<gfx::SelectionBound>& selection_after =
-      fake_output_surface->last_sent_frame()->metadata.selection;
+      fake_compositor_frame_sink->last_sent_frame()->metadata.selection;
   EXPECT_EQ(selection.start.type, selection_after.start.type());
   EXPECT_EQ(selection.end.type, selection_after.end.type());
   EXPECT_EQ(gfx::PointF(selection_bottom), selection_after.start.edge_bottom());
   EXPECT_EQ(gfx::PointF(selection_top), selection_after.start.edge_top());
   EXPECT_TRUE(selection_after.start.visible());
   EXPECT_TRUE(selection_after.start.visible());
 }
 
 class SimpleSwapPromiseMonitor : public SwapPromiseMonitor {
  public:
@@ skipping 115 matching lines @@
     EXPECT_EQ(0, set_needs_commit_count);
     EXPECT_EQ(2, set_needs_redraw_count);
     EXPECT_EQ(1, forward_to_main_count);
   }
 }
 
 class LayerTreeHostImplWithTopControlsTest : public LayerTreeHostImplTest {
  public:
   void SetUp() override {
     LayerTreeSettings settings = DefaultSettings();
-    CreateHostImpl(settings, CreateOutputSurface());
+    CreateHostImpl(settings, CreateCompositorFrameSink());
     host_impl_->active_tree()->set_top_controls_height(top_controls_height_);
     host_impl_->sync_tree()->set_top_controls_height(top_controls_height_);
     host_impl_->active_tree()->SetCurrentTopControlsShownRatio(1.f);
   }
 
  protected:
   static const int top_controls_height_;
 };
 
 const int LayerTreeHostImplWithTopControlsTest::top_controls_height_ = 50;
@@ skipping 890 matching lines @@
   // When inner viewport is unscrollable, a fling gives zero overscroll.
   EXPECT_FALSE(scroll_result.did_overscroll_root);
   EXPECT_EQ(gfx::Vector2dF(), host_impl_->accumulated_root_overscroll());
 }
 
 class LayerTreeHostImplWithImplicitLimitsTest : public LayerTreeHostImplTest {
  public:
   void SetUp() override {
     LayerTreeSettings settings = DefaultSettings();
     settings.max_memory_for_prepaint_percentage = 50;
-    CreateHostImpl(settings, CreateOutputSurface());
+    CreateHostImpl(settings, CreateCompositorFrameSink());
   }
 };
 
 TEST_F(LayerTreeHostImplWithImplicitLimitsTest, ImplicitMemoryLimits) {
   // Set up a memory policy and percentages which could cause
   // 32-bit integer overflows.
   ManagedMemoryPolicy mem_policy(300 * 1024 * 1024);  // 300MB
 
   // Verify implicit limits are calculated correctly with no overflows
   host_impl_->SetMemoryPolicy(mem_policy);
@@ skipping 84 matching lines @@
   // Different draw params does swap.
   did_request_redraw_ = false;
   host_impl_->OnDraw(draw_transform, draw_viewport2,
                      resourceless_software_draw);
   EXPECT_TRUE(did_request_redraw_);
   EXPECT_FALSE(last_on_draw_frame_->has_no_damage);
 }
 
 class ResourcelessSoftwareLayerTreeHostImplTest : public LayerTreeHostImplTest {
  protected:
-  std::unique_ptr<OutputSurface> CreateOutputSurface() override {
-    return FakeOutputSurface::CreateDelegating3d();
+  std::unique_ptr<CompositorFrameSink> CreateCompositorFrameSink() override {
+    return FakeCompositorFrameSink::Create3d();
   }
 };
 
 TEST_F(ResourcelessSoftwareLayerTreeHostImplTest,
        ResourcelessSoftwareSetNeedsRedraw) {
   SetupRootLayerImpl(LayerImpl::Create(host_impl_->active_tree(), 1));
   host_impl_->active_tree()->BuildPropertyTreesForTesting();
 
   const gfx::Size viewport_size(100, 100);
   host_impl_->SetViewportSize(viewport_size);
@@ skipping 974 matching lines @@
     host_impl_->ScrollBy(UpdateState(gfx::Point(), scroll_delta).get());
     host_impl_->ScrollEnd(EndState().get());
     EXPECT_VECTOR_EQ(gfx::Vector2dF(0, 2.5),
                      scroll_layer->CurrentScrollOffset());
   }
 }
 
 class LayerTreeHostImplCountingLostSurfaces : public LayerTreeHostImplTest {
  public:
   LayerTreeHostImplCountingLostSurfaces() : num_lost_surfaces_(0) {}
-  void DidLoseOutputSurfaceOnImplThread() override { num_lost_surfaces_++; }
+  void DidLoseCompositorFrameSinkOnImplThread() override {
+    num_lost_surfaces_++;
+  }
 
  protected:
   int num_lost_surfaces_;
 };
 
 TEST_F(LayerTreeHostImplCountingLostSurfaces, TwiceLostSurface) {
   // Really we just need at least one client notification each time
   // we go from having a valid output surface to not having a valid output
   // surface.
   EXPECT_EQ(0, num_lost_surfaces_);
-  host_impl_->DidLoseOutputSurface();
+  host_impl_->DidLoseCompositorFrameSink();
   EXPECT_EQ(1, num_lost_surfaces_);
-  host_impl_->DidLoseOutputSurface();
+  host_impl_->DidLoseCompositorFrameSink();
   EXPECT_LE(1, num_lost_surfaces_);
 }
 
 size_t CountRenderPassesWithId(const RenderPassList& list, RenderPassId id) {
   return std::count_if(
       list.begin(), list.end(),
       [id](const std::unique_ptr<RenderPass>& p) { return p->id == id; });
 }
 
 TEST_F(LayerTreeHostImplTest, RemoveUnreferencedRenderPass) {
@@ skipping 214 matching lines @@
             host_impl_->gpu_rasterization_status());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
   EXPECT_FALSE(host_impl_->use_msaa());
 
   std::unique_ptr<TestWebGraphicsContext3D> context_with_msaa =
       TestWebGraphicsContext3D::Create();
   context_with_msaa->SetMaxSamples(8);
 
   LayerTreeSettings msaaSettings = GpuRasterizationEnabledSettings();
   msaaSettings.gpu_rasterization_msaa_sample_count = 4;
-  EXPECT_TRUE(CreateHostImpl(
-      msaaSettings,
-      FakeOutputSurface::CreateDelegating3d(std::move(context_with_msaa))));
+  EXPECT_TRUE(CreateHostImpl(msaaSettings, FakeCompositorFrameSink::Create3d(
+                                               std::move(context_with_msaa))));
   host_impl_->SetHasGpuRasterizationTrigger(true);
   host_impl_->SetContentIsSuitableForGpuRasterization(false);
   host_impl_->CommitComplete();
   EXPECT_EQ(GpuRasterizationStatus::MSAA_CONTENT,
             host_impl_->gpu_rasterization_status());
   EXPECT_TRUE(host_impl_->use_gpu_rasterization());
   EXPECT_TRUE(host_impl_->use_msaa());
 
   LayerTreeSettings settings = DefaultSettings();
   settings.gpu_rasterization_enabled = false;
-  EXPECT_TRUE(
-      CreateHostImpl(settings, FakeOutputSurface::CreateDelegating3d()));
+  EXPECT_TRUE(CreateHostImpl(settings, FakeCompositorFrameSink::Create3d()));
   host_impl_->SetHasGpuRasterizationTrigger(true);
   host_impl_->SetContentIsSuitableForGpuRasterization(true);
   host_impl_->CommitComplete();
   EXPECT_EQ(GpuRasterizationStatus::OFF_DEVICE,
             host_impl_->gpu_rasterization_status());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
 
   settings.gpu_rasterization_forced = true;
-  EXPECT_TRUE(
-      CreateHostImpl(settings, FakeOutputSurface::CreateDelegating3d()));
+  EXPECT_TRUE(CreateHostImpl(settings, FakeCompositorFrameSink::Create3d()));
 
   host_impl_->SetHasGpuRasterizationTrigger(false);
   host_impl_->SetContentIsSuitableForGpuRasterization(false);
   host_impl_->CommitComplete();
   EXPECT_EQ(GpuRasterizationStatus::ON_FORCED,
             host_impl_->gpu_rasterization_status());
   EXPECT_TRUE(host_impl_->use_gpu_rasterization());
 }
 
 class MsaaIsSlowLayerTreeHostImplTest : public LayerTreeHostImplTest {
  public:
   void CreateHostImplWithMsaaIsSlow(bool msaa_is_slow) {
     LayerTreeSettings settings = DefaultSettings();
     settings.gpu_rasterization_enabled = true;
     settings.gpu_rasterization_msaa_sample_count = 4;
     auto context_provider = TestContextProvider::Create();
     context_provider->UnboundTestContext3d()->SetMaxSamples(4);
     context_provider->UnboundTestContext3d()->set_msaa_is_slow(msaa_is_slow);
-    auto msaa_is_normal_output_surface =
-        FakeOutputSurface::CreateDelegating3d(context_provider);
-    EXPECT_TRUE(
-        CreateHostImpl(settings, std::move(msaa_is_normal_output_surface)));
+    auto msaa_is_normal_compositor_frame_sink =
+        FakeCompositorFrameSink::Create3d(context_provider);
+    EXPECT_TRUE(CreateHostImpl(
+        settings, std::move(msaa_is_normal_compositor_frame_sink)));
   }
 };
 
 TEST_F(MsaaIsSlowLayerTreeHostImplTest, GpuRasterizationStatusMsaaIsSlow) {
   // Ensure that without the msaa_is_slow cap we raster unsuitable content with
   // msaa.
   CreateHostImplWithMsaaIsSlow(false);
   host_impl_->SetHasGpuRasterizationTrigger(true);
   host_impl_->SetContentIsSuitableForGpuRasterization(false);
   host_impl_->CommitComplete();
   EXPECT_EQ(GpuRasterizationStatus::MSAA_CONTENT,
             host_impl_->gpu_rasterization_status());
   EXPECT_TRUE(host_impl_->use_gpu_rasterization());
 
   // Ensure that with the msaa_is_slow cap we don't raster unsuitable content
   // with msaa.
   CreateHostImplWithMsaaIsSlow(true);
   host_impl_->SetHasGpuRasterizationTrigger(true);
   host_impl_->SetContentIsSuitableForGpuRasterization(false);
   host_impl_->CommitComplete();
   EXPECT_EQ(GpuRasterizationStatus::OFF_CONTENT,
             host_impl_->gpu_rasterization_status());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
 }
 
 // A mock output surface which lets us detect calls to ForceReclaimResources.
-class MockReclaimResourcesOutputSurface : public FakeOutputSurface {
+class MockReclaimResourcesCompositorFrameSink : public FakeCompositorFrameSink {
  public:
-  MockReclaimResourcesOutputSurface()
-      : FakeOutputSurface(TestContextProvider::Create(),
-                          TestContextProvider::CreateWorker(),
-                          true) {}
+  MockReclaimResourcesCompositorFrameSink()
+      : FakeCompositorFrameSink(TestContextProvider::Create(),
+                                TestContextProvider::CreateWorker(),
+                                true) {}
 
   MOCK_METHOD0(ForceReclaimResources, void());
 };
 
 // Display::Draw (and the planned Display Scheduler) currently rely on resources
 // being reclaimed to block drawing between BeginCommit / Swap. This test
 // ensures that BeginCommit triggers ForceReclaimResources. See
 // crbug.com/489515.
 TEST_F(LayerTreeHostImplTest, BeginCommitReclaimsResources) {
-  auto output_surface = base::MakeUnique<MockReclaimResourcesOutputSurface>();
+  auto compositor_frame_sink =
+      base::MakeUnique<MockReclaimResourcesCompositorFrameSink>();
   // Hold an unowned pointer to the output surface to use for mock expectations.
-  MockReclaimResourcesOutputSurface* mock_output_surface = output_surface.get();
+  MockReclaimResourcesCompositorFrameSink* mock_compositor_frame_sink =
+      compositor_frame_sink.get();
 
-  CreateHostImpl(DefaultSettings(), std::move(output_surface));
-  EXPECT_CALL(*mock_output_surface, ForceReclaimResources()).Times(1);
+  CreateHostImpl(DefaultSettings(), std::move(compositor_frame_sink));
+  EXPECT_CALL(*mock_compositor_frame_sink, ForceReclaimResources()).Times(1);
   host_impl_->BeginCommit();
 }
 
 TEST_F(LayerTreeHostImplTest, UpdatePageScaleFactorOnActiveTree) {
   // Check page scale factor update in property trees when an update is made
   // on the active tree.
   host_impl_->CreatePendingTree();
   host_impl_->pending_tree()->PushPageScaleFromMainThread(1.f, 1.f, 3.f);
   CreateScrollAndContentsLayers(host_impl_->pending_tree(),
                                 gfx::Size(100, 100));
@@ skipping 125 matching lines @@
     pending_tree->UpdateDrawProperties(false);
     float jitter = LayerTreeHostCommon::CalculateLayerJitter(content_layer);
     // There should not be any jitter measured till we hit the fixed point hits
     // threshold.
     float expected_jitter =
         (i == pending_tree->kFixedPointHitsThreshold) ? 500 : 0;
     EXPECT_EQ(jitter, expected_jitter);
   }
 }
 
-// Checks that if we lose a GPU raster enabled OutputSurface and replace it
-// with a software OutputSurface, LayerTreeHostImpl correctly re-computes GPU
+// Checks that if we lose a GPU raster enabled CompositorFrameSink and replace
+// it
+// with a software CompositorFrameSink, LayerTreeHostImpl correctly re-computes
+// GPU
 // rasterization status.
-TEST_F(LayerTreeHostImplTest, RecomputeGpuRasterOnOutputSurfaceChange) {
-  host_impl_->ReleaseOutputSurface();
+TEST_F(LayerTreeHostImplTest, RecomputeGpuRasterOnCompositorFrameSinkChange) {
+  host_impl_->ReleaseCompositorFrameSink();
   host_impl_ = nullptr;
 
   LayerTreeSettings settings = DefaultSettings();
   settings.gpu_rasterization_forced = true;
 
   host_impl_ = LayerTreeHostImpl::Create(
       settings, this, &task_runner_provider_, &stats_instrumentation_,
       &shared_bitmap_manager_, &gpu_memory_buffer_manager_, &task_graph_runner_,
       AnimationHost::CreateForTesting(ThreadInstance::IMPL), 0);
   host_impl_->SetVisible(true);
 
   // InitializeRenderer with a gpu-raster enabled output surface.
-  auto gpu_raster_output_surface =
-      FakeOutputSurface::CreateDelegating3d(TestWebGraphicsContext3D::Create());
-  host_impl_->InitializeRenderer(gpu_raster_output_surface.get());
+  auto gpu_raster_compositor_frame_sink =
+      FakeCompositorFrameSink::Create3d(TestWebGraphicsContext3D::Create());
+  host_impl_->InitializeRenderer(gpu_raster_compositor_frame_sink.get());
   EXPECT_TRUE(host_impl_->use_gpu_rasterization());
 
   // Re-initialize with a software output surface.
-  output_surface_ = FakeOutputSurface::CreateDelegatingSoftware();
-  host_impl_->InitializeRenderer(output_surface_.get());
+  compositor_frame_sink_ = FakeCompositorFrameSink::CreateSoftware();
+  host_impl_->InitializeRenderer(compositor_frame_sink_.get());
   EXPECT_FALSE(host_impl_->use_gpu_rasterization());
 }
 
 }  // namespace
 }  // namespace cc