cc: Make LayerTreeTests use a DelegatingRenderer and Display.

cc/output/delegating_renderer_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/output/delegating_renderer.h"
 
 #include <stdint.h>
 
 #include "cc/test/fake_output_surface.h"
 #include "cc/test/layer_tree_test.h"
 #include "cc/test/render_pass_test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cc {
 
-class DelegatingRendererTest : public LayerTreeTest {
- public:
-  DelegatingRendererTest() : LayerTreeTest(), output_surface_(NULL) {}
-  ~DelegatingRendererTest() override {}
-
-  std::unique_ptr<OutputSurface> CreateOutputSurface() override {
-    std::unique_ptr<FakeOutputSurface> output_surface =
-        FakeOutputSurface::CreateDelegating3d();
-    output_surface_ = output_surface.get();
-    return std::move(output_surface);
-  }
-
- protected:
-  TestWebGraphicsContext3D* context3d_;
-  FakeOutputSurface* output_surface_;
-};
+class DelegatingRendererTest : public LayerTreeTest {};
 
 class DelegatingRendererTestDraw : public DelegatingRendererTest {
  public:
   void BeginTest() override {
     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.5f, 4.f);
     PostSetNeedsCommitToMainThread();
   }
 
   void AfterTest() override {}
 
-  DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
-                                   LayerTreeHostImpl::FrameData* frame,
-                                   DrawResult draw_result) override {
-    EXPECT_EQ(0u, output_surface_->num_sent_frames());
-
-    const CompositorFrame* last_frame = output_surface_->last_sent_frame();
-    EXPECT_EQ(nullptr, last_frame);
-    return DRAW_SUCCESS;
-  }
-
   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
-    EXPECT_EQ(0u, output_surface_->num_sent_frames());
+    EXPECT_EQ(0, num_swaps_);
     drawn_viewport_ = host_impl->DeviceViewport();
   }
 
-  void SwapBuffersCompleteOnThread() override {
-    EXPECT_EQ(1u, output_surface_->num_sent_frames());
+  void DisplayReceivedCompositorFrameOnThread(
+      const CompositorFrame& frame) override {
+    EXPECT_EQ(1, ++num_swaps_);
 
-    const CompositorFrame* last_frame = output_surface_->last_sent_frame();
-    DelegatedFrameData* last_frame_data =
-        last_frame->delegated_frame_data.get();
-    ASSERT_TRUE(last_frame->delegated_frame_data);
-    EXPECT_FALSE(last_frame->gl_frame_data);
+    DelegatedFrameData* last_frame_data = frame.delegated_frame_data.get();
+    ASSERT_TRUE(frame.delegated_frame_data);
+    EXPECT_FALSE(frame.gl_frame_data);
     EXPECT_EQ(drawn_viewport_,
               last_frame_data->render_pass_list.back()->output_rect);
-    EXPECT_EQ(0.5f, last_frame->metadata.min_page_scale_factor);
-    EXPECT_EQ(4.f, last_frame->metadata.max_page_scale_factor);
+    EXPECT_EQ(0.5f, frame.metadata.min_page_scale_factor);
+    EXPECT_EQ(4.f, frame.metadata.max_page_scale_factor);
 
-    EXPECT_EQ(0u, last_frame->delegated_frame_data->resource_list.size());
-    EXPECT_EQ(1u, last_frame->delegated_frame_data->render_pass_list.size());
+    EXPECT_EQ(0u, frame.delegated_frame_data->resource_list.size());
+    EXPECT_EQ(1u, frame.delegated_frame_data->render_pass_list.size());
 
     EndTest();
   }
 
+  int num_swaps_ = 0;
   gfx::Rect drawn_viewport_;
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(DelegatingRendererTestDraw);
 
 class DelegatingRendererTestResources : public DelegatingRendererTest {
  public:
   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 
   void AfterTest() override {}
@@ skipping 10 matching lines @@
     AddOneOfEveryQuadType(child_pass, host_impl->resource_provider(),
                           RenderPassId(0, 0), &mailbox_sync_token);
 
     RenderPass* pass = AddRenderPass(&frame->render_passes, RenderPassId(1, 1),
                                      gfx::Rect(3, 3, 10, 10), gfx::Transform());
     AddOneOfEveryQuadType(pass, host_impl->resource_provider(), child_pass->id,
                           &mailbox_sync_token);
     return draw_result;
   }
 
-  void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
-    EXPECT_EQ(0u, output_surface_->num_sent_frames());
-  }
+  void DisplayReceivedCompositorFrameOnThread(
+      const CompositorFrame& frame) override {
+    ASSERT_TRUE(frame.delegated_frame_data);
 
-  void SwapBuffersCompleteOnThread() override {
-    EXPECT_EQ(1u, output_surface_->num_sent_frames());
-
-    const CompositorFrame* last_frame = output_surface_->last_sent_frame();
-    ASSERT_TRUE(last_frame->delegated_frame_data);
-
-    EXPECT_EQ(2u, last_frame->delegated_frame_data->render_pass_list.size());
+    EXPECT_EQ(2u, frame.delegated_frame_data->render_pass_list.size());
     // Each render pass has 10 resources in it. And the root render pass has a
     // mask resource used when drawing the child render pass, as well as its
     // replica (it's added twice). The number 10 may change if
     // AppendOneOfEveryQuadType() is updated, and the value here should be
     // updated accordingly.
-    EXPECT_EQ(22u, last_frame->delegated_frame_data->resource_list.size());
+    EXPECT_EQ(22u, frame.delegated_frame_data->resource_list.size());
 
     EndTest();
   }
 };
 
 SINGLE_AND_MULTI_THREAD_TEST_F(DelegatingRendererTestResources);
 
 }  // namespace cc