cc: Introduce BeginFrame sequence numbers and acknowledgements.

cc/output/software_renderer.cc

 // Copyright 2012 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/software_renderer.h"
 
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
 #include "cc/base/math_util.h"
 #include "cc/output/copy_output_request.h"
@@ skipping 62 matching lines @@
 void SoftwareRenderer::FinishDrawingFrame(DrawingFrame* frame) {
   TRACE_EVENT0("cc", "SoftwareRenderer::FinishDrawingFrame");
   current_framebuffer_lock_ = nullptr;
   current_framebuffer_canvas_.reset();
   current_canvas_ = nullptr;
   root_canvas_ = nullptr;
 
   output_device_->EndPaint();
 }
 
-void SoftwareRenderer::SwapBuffers(std::vector<ui::LatencyInfo> latency_info) {
+void SoftwareRenderer::SwapBuffers(OutputSurfaceFrame output_frame) {
   DCHECK(visible_);
   TRACE_EVENT0("cc", "SoftwareRenderer::SwapBuffers");
-  OutputSurfaceFrame output_frame;
-  output_frame.latency_info = std::move(latency_info);
   output_surface_->SwapBuffers(std::move(output_frame));
 }
 
 bool SoftwareRenderer::FlippedFramebuffer(const DrawingFrame* frame) const {
   return false;
 }
 
 void SoftwareRenderer::EnsureScissorTestEnabled() {
   is_scissor_enabled_ = true;
   SetClipRect(scissor_rect_);
@@ skipping 614 matching lines @@
       ApplyImageFilter(filter.get(), quad, backdrop_bitmap, nullptr);
 
   if (!filter_backdrop_image)
     return nullptr;
 
   return filter_backdrop_image->makeShader(content_tile_mode, content_tile_mode,
                                            &filter_backdrop_transform);
 }
 
 }  // namespace cc