Remove SendBeginFramesToChildren plumbing

content/browser/renderer_host/begin_frame_observer_proxy.cc

Index: content/browser/renderer_host/begin_frame_observer_proxy.cc
diff --git a/content/browser/renderer_host/begin_frame_observer_proxy.cc b/content/browser/renderer_host/begin_frame_observer_proxy.cc
deleted file mode 100644
index 06baa18bd2a128390dd6436cf581077043c0f5fc..0000000000000000000000000000000000000000
--- a/content/browser/renderer_host/begin_frame_observer_proxy.cc
+++ /dev/null
@@ -1,78 +0,0 @@
-// 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 "content/browser/renderer_host/begin_frame_observer_proxy.h"
-
-namespace content {
-
-BeginFrameObserverProxy::BeginFrameObserverProxy(
-    BeginFrameObserverProxyClient* client)
-    : needs_begin_frames_(false),
-      client_(client),
-      compositor_(nullptr) {
-}
-
-BeginFrameObserverProxy::~BeginFrameObserverProxy() {
-  DCHECK(!compositor_);
-}
-
-void BeginFrameObserverProxy::SetNeedsBeginFrames(bool needs_begin_frames) {
-  if (needs_begin_frames_ == needs_begin_frames)
-    return;
-
-  needs_begin_frames_ = needs_begin_frames;
-
-  // In some cases, BeginFrame message is requested before |client_|'s window is
-  // added in the root window hierarchy.
-  if (!compositor_)
-    return;
-
-  if (needs_begin_frames)
-    StartObservingBeginFrames();
-  else
-    StopObservingBeginFrames();
-}
-
-void BeginFrameObserverProxy::SetCompositor(ui::Compositor* compositor) {
-  DCHECK(!compositor_);
-  DCHECK(compositor);
-
-  compositor_ = compositor;
-  compositor_->AddObserver(this);
-  if (needs_begin_frames_)
-    StartObservingBeginFrames();
-}
-
-void BeginFrameObserverProxy::ResetCompositor() {
-  if (!compositor_)
-    return;
-  compositor_->RemoveObserver(this);
-
-  if (needs_begin_frames_)
-    StopObservingBeginFrames();
-  compositor_ = nullptr;
-}
-
-void BeginFrameObserverProxy::OnSendBeginFrame(const cc::BeginFrameArgs& args) {
-  if (last_sent_begin_frame_args_.frame_time != args.frame_time)
-    client_->SendBeginFrame(args);
-  last_sent_begin_frame_args_ = args;
-}
-
-void BeginFrameObserverProxy::OnCompositingShuttingDown(
-    ui::Compositor* compositor) {
-  ResetCompositor();
-}
-
-void BeginFrameObserverProxy::StartObservingBeginFrames() {
-  DCHECK(compositor_);
-  compositor_->AddBeginFrameObserver(this);
-}
-
-void BeginFrameObserverProxy::StopObservingBeginFrames() {
-  DCHECK(compositor_);
-  compositor_->RemoveBeginFrameObserver(this);
-}
-
-}  // namespace content