Revert 139494 - ash: Improved window maximize/restore animations

ui/aura/root_window.cc

 // Copyright (c) 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 "ui/aura/root_window.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 584 matching lines @@
   if (draw_on_compositing_end_) {
     draw_on_compositing_end_ = false;
 
     // Call ScheduleDraw() instead of Draw() in order to allow other
     // ui::CompositorObservers to be notified before starting another
     // draw cycle.
     ScheduleDraw();
   }
 }
 
-void RootWindow::OnCompositingAborted(ui::Compositor*) {
-}
-
 ////////////////////////////////////////////////////////////////////////////////
 // RootWindow, ui::LayerDelegate implementation:
 
 void RootWindow::OnDeviceScaleFactorChanged(
     float device_scale_factor) {
   if (cursor_shown_)
     ShowCursor(false);
   host_->OnDeviceScaleFactorChanged(device_scale_factor);
   Window::OnDeviceScaleFactorChanged(device_scale_factor);
   if (cursor_shown_)
@@ skipping 411 matching lines @@
 void RootWindow::UnlockCompositor() {
   DCHECK(compositor_lock_);
   compositor_lock_ = NULL;
   if (draw_on_compositor_unlock_) {
     draw_on_compositor_unlock_ = false;
     ScheduleDraw();
   }
 }
 
 }  // namespace aura