[ABANDONED] Revert of Change exo::SurfaceFactoryOwner to exo::ExoCompositorFrameSink

components/exo/compositor_frame_sink_holder.cc

Index: components/exo/compositor_frame_sink_holder.cc
diff --git a/components/exo/compositor_frame_sink_holder.cc b/components/exo/compositor_frame_sink_holder.cc
deleted file mode 100644
index dd82aff4dc1dc915afc79434ccbb091dc0c6d476..0000000000000000000000000000000000000000
--- a/components/exo/compositor_frame_sink_holder.cc
+++ /dev/null
@@ -1,142 +0,0 @@
-// Copyright 2016 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 "components/exo/compositor_frame_sink_holder.h"
-
-#include "cc/resources/returned_resource.h"
-#include "components/exo/surface.h"
-
-namespace exo {
-
-////////////////////////////////////////////////////////////////////////////////
-// CompositorFrameSinkHolder, public:
-
-CompositorFrameSinkHolder::CompositorFrameSinkHolder(
-    Surface* surface,
-    std::unique_ptr<CompositorFrameSink> frame_sink,
-    cc::mojom::MojoCompositorFrameSinkClientRequest request)
-    : surface_(surface),
-      frame_sink_(std::move(frame_sink)),
-      begin_frame_source_(base::MakeUnique<cc::ExternalBeginFrameSource>(this)),
-      binding_(this, std::move(request)),
-      weak_factory_(this) {
-  surface_->AddSurfaceObserver(this);
-}
-
-bool CompositorFrameSinkHolder::HasReleaseCallbackForResource(
-    cc::ResourceId id) {
-  return release_callbacks_.find(id) != release_callbacks_.end();
-}
-
-void CompositorFrameSinkHolder::AddResourceReleaseCallback(
-    cc::ResourceId id,
-    std::unique_ptr<cc::SingleReleaseCallback> callback) {
-  release_callbacks_[id] = std::make_pair(this, std::move(callback));
-}
-
-void CompositorFrameSinkHolder::ActivateFrameCallbacks(
-    std::list<FrameCallback>* frame_callbacks) {
-  active_frame_callbacks_.splice(active_frame_callbacks_.end(),
-                                 *frame_callbacks);
-  UpdateNeedsBeginFrame();
-}
-
-void CompositorFrameSinkHolder::CancelFrameCallbacks() {
-  // Call pending frame callbacks with a null frame time to indicate that they
-  // have been cancelled.
-  for (const auto& frame_callback : active_frame_callbacks_)
-    frame_callback.Run(base::TimeTicks());
-}
-
-void CompositorFrameSinkHolder::SetNeedsBeginFrame(bool needs_begin_frame) {
-  needs_begin_frame_ = needs_begin_frame;
-  OnNeedsBeginFrames(needs_begin_frame);
-}
-
-void CompositorFrameSinkHolder::Satisfy(const cc::SurfaceSequence& sequence) {
-  frame_sink_->Satisfy(sequence);
-}
-
-void CompositorFrameSinkHolder::Require(const cc::SurfaceId& id,
-                                        const cc::SurfaceSequence& sequence) {
-  frame_sink_->Require(id.local_frame_id(), sequence);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// cc::mojom::MojoCompositorFrameSinkClient overrides:
-
-void CompositorFrameSinkHolder::DidReceiveCompositorFrameAck() {
-  // TODO(staraz): Implement this
-}
-
-void CompositorFrameSinkHolder::OnBeginFrame(const cc::BeginFrameArgs& args) {
-  while (!active_frame_callbacks_.empty()) {
-    active_frame_callbacks_.front().Run(args.frame_time);
-    active_frame_callbacks_.pop_front();
-  }
-  begin_frame_source_->OnBeginFrame(args);
-}
-
-void CompositorFrameSinkHolder::ReclaimResources(
-    const cc::ReturnedResourceArray& resources) {
-  for (auto& resource : resources) {
-    auto it = release_callbacks_.find(resource.id);
-    DCHECK(it != release_callbacks_.end());
-    std::unique_ptr<cc::SingleReleaseCallback> callback =
-        std::move(it->second.second);
-    release_callbacks_.erase(it);
-    callback->Run(resource.sync_token, resource.lost);
-  }
-}
-
-void CompositorFrameSinkHolder::WillDrawSurface() {
-  if (surface_)
-    surface_->WillDraw();
-
-  UpdateNeedsBeginFrame();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// cc::BeginFrameObserver overrides:
-
-const cc::BeginFrameArgs& CompositorFrameSinkHolder::LastUsedBeginFrameArgs()
-    const {
-  return last_begin_frame_args_;
-}
-
-void CompositorFrameSinkHolder::OnBeginFrameSourcePausedChanged(bool paused) {}
-
-////////////////////////////////////////////////////////////////////////////////
-// cc::ExternalBeginFrameSouceClient overrides:
-
-void CompositorFrameSinkHolder::OnNeedsBeginFrames(bool needs_begin_frames) {
-  frame_sink_->SetNeedsBeginFrame(needs_begin_frames);
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// SurfaceObserver overrides:
-
-void CompositorFrameSinkHolder::OnSurfaceDestroying(Surface* surface) {
-  surface_->RemoveSurfaceObserver(this);
-  surface_ = nullptr;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// ExoComopositorFrameSink, private:
-
-CompositorFrameSinkHolder::~CompositorFrameSinkHolder() {}
-
-void CompositorFrameSinkHolder::UpdateNeedsBeginFrame() {
-  if (!begin_frame_source_)
-    return;
-
-  bool needs_begin_frame = !active_frame_callbacks_.empty();
-  if (needs_begin_frame == needs_begin_frame_)
-    return;
-
-  needs_begin_frame_ = needs_begin_frame;
-  OnNeedsBeginFrames(needs_begin_frame_);
-}
-
-}  // namespace exo