Enables ScreenPinningController for mash/mus

ash/common/wm_window.cc

 // 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 "ash/common/wm_window.h"
 
 #include "ash/aura/aura_layout_manager_adapter.h"
 #include "ash/aura/wm_shell_aura.h"
 #include "ash/common/ash_constants.h"
 #include "ash/common/wm/window_state.h"
@@ skipping 560 matching lines @@
 }
 
 void WmWindow::StackChildAbove(WmWindow* child, WmWindow* target) {
   window_->StackChildAbove(GetAuraWindow(child), GetAuraWindow(target));
 }
 
 void WmWindow::StackChildBelow(WmWindow* child, WmWindow* target) {
   window_->StackChildBelow(GetAuraWindow(child), GetAuraWindow(target));
 }
 
-void WmWindow::SetPinned(bool trusted) {
-  if (WmShell::Get()->IsRunningInMash()) {
-    // TODO: fix, see http://crbug.com/622486. With aura-mus pinning may just
-    // work.
-    NOTIMPLEMENTED();
-    return;
-  }
-  wm::PinWindow(window_, trusted);
-}
-
 void WmWindow::SetAlwaysOnTop(bool value) {
   window_->SetProperty(aura::client::kAlwaysOnTopKey, value);
 }
 
 bool WmWindow::IsAlwaysOnTop() const {
   return window_->GetProperty(aura::client::kAlwaysOnTopKey);
 }
 
 void WmWindow::Hide() {
   window_->Hide();
@@ skipping 193 matching lines @@
     observer.OnTransientChildAdded(this, Get(transient));
 }
 
 void WmWindow::OnTransientChildRemoved(aura::Window* window,
                                        aura::Window* transient) {
   for (auto& observer : transient_observers_)
     observer.OnTransientChildRemoved(this, Get(transient));
 }
 
 }  // namespace ash