Move MaximizeModeController into ash/common

ash/common/wm_shell.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_shell.h"
 
 #include "ash/common/focus_cycler.h"
 #include "ash/common/keyboard/keyboard_ui.h"
 #include "ash/common/shell_window_ids.h"
 #include "ash/common/system/chromeos/session/logout_confirmation_controller.h"
@@ skipping 13 matching lines @@
 // static
 void WmShell::Set(WmShell* instance) {
   instance_ = instance;
 }
 
 // static
 WmShell* WmShell::Get() {
   return instance_;
 }
 
+void WmShell::OnMaximizeModeStarted() {
+  FOR_EACH_OBSERVER(ShellObserver, shell_observers_, OnMaximizeModeStarted());
+}
+
+void WmShell::OnMaximizeModeEnded() {
+  FOR_EACH_OBSERVER(ShellObserver, shell_observers_, OnMaximizeModeEnded());
+}
+
 void WmShell::NotifyPinnedStateChanged(WmWindow* pinned_window) {
   FOR_EACH_OBSERVER(ShellObserver, shell_observers_,
                     OnPinnedStateChanged(pinned_window));
 }
 
 void WmShell::AddShellObserver(ShellObserver* observer) {
   shell_observers_.AddObserver(observer);
 }
 
 void WmShell::RemoveShellObserver(ShellObserver* observer) {
@@ skipping 63 matching lines @@
 
 void WmShell::CreateMruWindowTracker() {
   mru_window_tracker_.reset(new MruWindowTracker);
 }
 
 void WmShell::DeleteMruWindowTracker() {
   mru_window_tracker_.reset();
 }
 
 }  // namespace ash