Makes WorkspaceWindowResizer use ash/wm/common types

ash/wm/aura/wm_globals_aura.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/wm/aura/wm_globals_aura.h"
 
 #include "ash/display/window_tree_host_manager.h"
 #include "ash/session/session_state_delegate.h"
 #include "ash/shell.h"
 #include "ash/shell_delegate.h"
@@ skipping 80 matching lines @@
 }
 
 std::vector<WmWindow*> WmGlobalsAura::GetAllRootWindows() {
   aura::Window::Windows root_windows = Shell::GetAllRootWindows();
   std::vector<WmWindow*> wm_windows(root_windows.size());
   for (size_t i = 0; i < root_windows.size(); ++i)
     wm_windows[i] = WmWindowAura::Get(root_windows[i]);
   return wm_windows;
 }
 
+UserMetricsRecorder* WmGlobalsAura::GetUserMetricsRecorder() {
+  return Shell::GetInstance()->metrics();
+}
+
 void WmGlobalsAura::AddActivationObserver(WmActivationObserver* observer) {
   if (!added_activation_observer_) {
     added_activation_observer_ = true;
     aura::client::GetActivationClient(Shell::GetPrimaryRootWindow())
         ->AddObserver(this);
   }
   activation_observers_.AddObserver(observer);
 }
 
 void WmGlobalsAura::RemoveActivationObserver(WmActivationObserver* observer) {
   activation_observers_.RemoveObserver(observer);
 }
 
 void WmGlobalsAura::OnWindowActivated(
     aura::client::ActivationChangeObserver::ActivationReason reason,
     aura::Window* gained_active,
     aura::Window* lost_active) {
   FOR_EACH_OBSERVER(WmActivationObserver, activation_observers_,
                     OnWindowActivated(WmWindowAura::Get(gained_active),
                                       WmWindowAura::Get(lost_active)));
 }
 
 }  // namespace wm
 }  // namespace ash