Revert 139494 - ash: Improved window maximize/restore animations

ui/compositor/compositor.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/compositor/compositor.h"
 
 #include "base/command_line.h"
 #include "base/threading/thread_restrictions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebCompositor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebFloatPoint.h"
@@ skipping 263 matching lines @@
   DCHECK(swap_posted_);
   swap_posted_ = false;
   NotifyEnd();
 }
 
 void Compositor::OnSwapBuffersAborted() {
   if (swap_posted_) {
     swap_posted_ = false;
     NotifyEnd();
   }
-  FOR_EACH_OBSERVER(CompositorObserver,
-                    observer_list_,
-                    OnCompositingAborted(this));
 }
 
 void Compositor::updateAnimations(double frameBeginTime) {
 }
 
 void Compositor::layout() {
   if (root_layer_)
     root_layer_->SendDamagedRects();
 }
 
@@ skipping 73 matching lines @@
 
 COMPOSITOR_EXPORT void DisableTestCompositor() {
   test_compositor_enabled = false;
 }
 
 COMPOSITOR_EXPORT bool IsTestCompositorEnabled() {
   return test_compositor_enabled;
 }
 
 }  // namespace ui