ARC: Show window title in launcher menu instead of app title

chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.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 "chrome/browser/ui/ash/launcher/arc_app_window_launcher_controller.h"
 
 #include <string>
 
 #include "ash/common/wm/window_state.h"
 #include "ash/common/wm_shell.h"
 #include "ash/display/display_manager.h"
@@ skipping 115 matching lines @@
   bool IsMinimized() const override {
     NOTREACHED();
     return false;
   }
 
   bool IsFullscreen() const override {
     NOTREACHED();
     return false;
   }
 
-  gfx::NativeWindow GetNativeWindow() const override { return nullptr; }
+  gfx::NativeWindow GetNativeWindow() const override {
+    return widget_ ? widget_->GetNativeWindow() : nullptr;
+  }
 
   gfx::Rect GetRestoredBounds() const override {
     NOTREACHED();
     return gfx::Rect();
   }
 
   ui::WindowShowState GetRestoredState() const override {
     NOTREACHED();
     return ui::SHOW_STATE_NORMAL;
   }
@@ skipping 451 matching lines @@
 
   if (orientation_lock == arc::mojom::OrientationLock::CURRENT) {
     // Resolve the orientation when it first resolved.
     orientation_lock = GetCurrentOrientation();
     app_window->set_requested_orientation_lock(orientation_lock);
   }
 
   shell->screen_orientation_controller()->LockOrientationForWindow(
       window, BlinkOrientationLockFromMojom(orientation_lock));
 }