Linux Aura: Use Separate profile key specifically for theme usage

chrome/browser/ui/views/chrome_browser_main_extra_parts_views_linux.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/views/chrome_browser_main_extra_parts_views_linux.h"
 
 #include "base/run_loop.h"
 #include "chrome/browser/chrome_browser_main.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/themes/theme_service.h"
 #include "chrome/browser/themes/theme_service_factory.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/libgtkui/gtk_ui.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
+#include "chrome/browser/ui/views/theme_profile_key.h"
 #include "chrome/common/pref_names.h"
 #include "components/prefs/pref_service.h"
 #include "ui/aura/env.h"
 #include "ui/aura/window.h"
 #include "ui/base/ime/input_method_initializer.h"
 #include "ui/base/ui_base_switches.h"
 #include "ui/display/display.h"
 #include "ui/display/screen.h"
 #include "ui/native_theme/native_theme_aura.h"
 #include "ui/native_theme/native_theme_dark_aura.h"
 #include "ui/views/linux_ui/linux_ui.h"
 #include "ui/views/widget/desktop_aura/desktop_screen.h"
 #include "ui/views/widget/desktop_aura/x11_desktop_handler.h"
 #include "ui/views/widget/native_widget_aura.h"
 
 namespace {
 
 ui::NativeTheme* GetNativeThemeForWindow(aura::Window* window) {
   if (!window)
     return nullptr;
 
-  Profile* profile = reinterpret_cast<Profile*>(
-      window->GetNativeWindowProperty(Profile::kProfileKey));
+  Profile* profile = GetThemeProfileForWindow(window);
 
   // If using the system (GTK) theme, don't use an Aura NativeTheme at all.
   // NB: ThemeService::UsingSystemTheme() might lag behind this pref. See
   // http://crbug.com/585522
   if (!profile || (!profile->IsSupervised() &&
                    profile->GetPrefs()->GetBoolean(prefs::kUsesSystemTheme))) {
     return nullptr;
   }
 
   // Use a dark theme for incognito browser windows that aren't
@@ skipping 35 matching lines @@
   // because its display::Screen instance depends on it.
   views::LinuxUI::instance()->UpdateDeviceScaleFactor();
   ChromeBrowserMainExtraPartsViews::PreCreateThreads();
   views::X11DesktopHandler::get()->AddObserver(this);
 }
 
 void ChromeBrowserMainExtraPartsViewsLinux::OnWorkspaceChanged(
     const std::string& new_workspace) {
   BrowserList::MoveBrowsersInWorkspaceToFront(new_workspace);
 }