Revert of ash/mash: Add a mus-client that sets up ash to provide the system ui for mash.

ash/snap_to_pixel_layout_manager.cc

 // Copyright 2014 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 "ash/snap_to_pixel_layout_manager.h"
 
 #include "ash/wm/window_properties.h"
 #include "ash/wm/window_util.h"
 #include "ui/aura/window.h"
 
 namespace ash {
 
 SnapToPixelLayoutManager::SnapToPixelLayoutManager(aura::Window* container) {
+  DCHECK(container->GetProperty(kSnapChildrenToPixelBoundary));
 }
 
 SnapToPixelLayoutManager::~SnapToPixelLayoutManager() {
 }
 
 void SnapToPixelLayoutManager::OnWindowResized() {
 }
 
 void SnapToPixelLayoutManager::OnWindowAddedToLayout(aura::Window* child) {
 }
@@ skipping 11 matching lines @@
 }
 
 void SnapToPixelLayoutManager::SetChildBounds(
     aura::Window* child,
     const gfx::Rect& requested_bounds) {
   SetChildBoundsDirect(child, requested_bounds);
   wm::SnapWindowToPixelBoundary(child);
 }
 
 }  // namespace ash