cc: Introduce BeginFrame sequence numbers and acknowledgements.

cc/surfaces/display_unittest.cc

 // Copyright 2015 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/surfaces/display.h"
 
 #include <utility>
 
 #include "base/test/null_task_runner.h"
 #include "cc/output/compositor_frame.h"
@@ skipping 43 matching lines @@
 class TestSoftwareOutputDevice : public SoftwareOutputDevice {
  public:
   TestSoftwareOutputDevice() {}
 
   gfx::Rect damage_rect() const { return damage_rect_; }
   gfx::Size viewport_pixel_size() const { return viewport_pixel_size_; }
 };
 
 class TestDisplayScheduler : public DisplayScheduler {
  public:
-  TestDisplayScheduler(BeginFrameSource* begin_frame_source,
-                       base::SingleThreadTaskRunner* task_runner)
-      : DisplayScheduler(begin_frame_source, task_runner, 1),
+  explicit TestDisplayScheduler(base::SingleThreadTaskRunner* task_runner)
+      : DisplayScheduler(task_runner, 1),
         damaged(false),
         display_resized_(false),
         has_new_root_surface(false),
         swapped(false) {}
 
   ~TestDisplayScheduler() override {}
 
   void DisplayResized() override { display_resized_ = true; }
 
   void SetNewRootSurface(const SurfaceId& root_surface_id) override {
@@ skipping 44 matching lines @@
       output_surface = FakeOutputSurface::Create3d(std::move(provider));
     } else {
       std::unique_ptr<TestSoftwareOutputDevice> device(
           new TestSoftwareOutputDevice);
       software_output_device_ = device.get();
       output_surface = FakeOutputSurface::CreateSoftware(std::move(device));
     }
     output_surface_ = output_surface.get();
 
     std::unique_ptr<TestDisplayScheduler> scheduler(
-        new TestDisplayScheduler(begin_frame_source.get(), task_runner_.get()));
+        new TestDisplayScheduler(task_runner_.get()));
     scheduler_ = scheduler.get();
 
     display_ = base::MakeUnique<Display>(
         &shared_bitmap_manager_, nullptr /* gpu_memory_buffer_manager */,
         settings, kArbitraryFrameSinkId, std::move(begin_frame_source),
         std::move(output_surface), std::move(scheduler),
         base::MakeUnique<TextureMailboxDeleter>(task_runner_.get()));
     display_->SetVisible(true);
   }
 
@@ skipping 365 matching lines @@
   // Verify DidLoseOutputSurface callback is hooked up correctly.
   EXPECT_EQ(0, client.loss_count());
   output_surface_->context_provider()->ContextGL()->LoseContextCHROMIUM(
       GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
   output_surface_->context_provider()->ContextGL()->Flush();
   EXPECT_EQ(1, client.loss_count());
 }
 
 }  // namespace
 }  // namespace cc