Converts overview to use common ash types

ash/wm/aura/wm_globals_aura.cc

Index: ash/wm/aura/wm_globals_aura.cc
diff --git a/ash/wm/aura/wm_globals_aura.cc b/ash/wm/aura/wm_globals_aura.cc
index 17f107bd1910d5043d65b615e115cd6ac4dea6f7..6a81a58a796d08a86b4b437b095235a6dae7d7f0 100644
--- a/ash/wm/aura/wm_globals_aura.cc
+++ b/ash/wm/aura/wm_globals_aura.cc
@@ -50,6 +50,10 @@ WmWindow* WmGlobalsAura::GetActiveWindow() {
   return WmWindowAura::Get(wm::GetActiveWindow());
 }
 
+WmWindow* WmGlobalsAura::GetPrimaryRootWindow() {
+  return WmWindowAura::Get(Shell::GetPrimaryRootWindow());
+}
+
 WmWindow* WmGlobalsAura::GetRootWindowForDisplayId(int64_t display_id) {
   return WmWindowAura::Get(Shell::GetInstance()
                                ->window_tree_host_manager()
@@ -60,14 +64,15 @@ WmWindow* WmGlobalsAura::GetRootWindowForNewWindows() {
   return WmWindowAura::Get(Shell::GetTargetRootWindow());
 }
 
+std::vector<WmWindow*> WmGlobalsAura::GetMruWindowList() {
+  return WmWindowAura::FromAuraWindows(
+      ash::Shell::GetInstance()->mru_window_tracker()->BuildMruWindowList());

[James Cook, 2016/05/27 00:02:50]

nit: no need for ash:: here or below

[sky, 2016/05/27 03:18:03]

Done.

+}
+
 std::vector<WmWindow*> WmGlobalsAura::GetMruWindowListIgnoreModals() {
-  const std::vector<aura::Window*> windows = ash::Shell::GetInstance()
-                                                 ->mru_window_tracker()
-                                                 ->BuildWindowListIgnoreModal();
-  std::vector<WmWindow*> wm_windows(windows.size());
-  for (size_t i = 0; i < windows.size(); ++i)
-    wm_windows[i] = WmWindowAura::Get(windows[i]);
-  return wm_windows;
+  return WmWindowAura::FromAuraWindows(ash::Shell::GetInstance()
+                                           ->mru_window_tracker()
+                                           ->BuildWindowListIgnoreModal());
 }
 
 bool WmGlobalsAura::IsForceMaximizeOnFirstRun() {
@@ -166,6 +171,14 @@ void WmGlobalsAura::OnWindowActivated(
                                       WmWindowAura::Get(lost_active)));
 }
 
+void WmGlobalsAura::OnAttemptToReactivateWindow(aura::Window* request_active,
+                                                aura::Window* actual_active) {
+  FOR_EACH_OBSERVER(
+      WmActivationObserver, activation_observers_,
+      OnAttemptToReactivateWindow(WmWindowAura::Get(request_active),
+                                  WmWindowAura::Get(actual_active)));
+}
+
 void WmGlobalsAura::OnDisplayConfigurationChanging() {
   FOR_EACH_OBSERVER(WmDisplayObserver, display_observers_,
                     OnDisplayConfigurationChanging());