Set default window title for Ozone X11 windows

ui/ozone/platform/x11/ozone_platform_x11.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 "ui/ozone/platform/x11/ozone_platform_x11.h"
 
 #include <X11/Xlib.h>
 
 #include <memory>
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/ptr_util.h"
+#include "base/strings/utf_string_conversions.h"
 #include "ui/events/platform/x11/x11_event_source_libevent.h"
 #include "ui/ozone/common/stub_overlay_manager.h"
 #include "ui/ozone/platform/x11/native_display_delegate_ozone_x11.h"
 #include "ui/ozone/platform/x11/x11_cursor_factory_ozone.h"
 #include "ui/ozone/platform/x11/x11_surface_factory.h"
 #include "ui/ozone/public/gpu_platform_support.h"
 #include "ui/ozone/public/gpu_platform_support_host.h"
 #include "ui/ozone/public/input_controller.h"
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/system_input_injector.h"
@@ skipping 54 matching lines @@
   }
 
   std::unique_ptr<PlatformWindow> CreatePlatformWindow(
       PlatformWindowDelegate* delegate,
       const gfx::Rect& bounds) override {
     std::unique_ptr<X11WindowOzone> window =
         base::WrapUnique(new X11WindowOzone(event_source_.get(),
                                             window_manager_.get(), delegate));
     window->SetBounds(bounds);
     window->Create();
+    window->SetTitle(base::ASCIIToUTF16("Ozone X11"));
     return std::move(window);
   }
 
   std::unique_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()
       override {
     return base::WrapUnique(new NativeDisplayDelegateOzoneX11());
   }
 
   void InitializeUI() override {
     window_manager_.reset(new X11WindowManagerOzone);
@@ skipping 25 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformX11);
 };
 
 }  // namespace
 
 OzonePlatform* CreateOzonePlatformX11() {
   return new OzonePlatformX11;
 }
 
 }  // namespace ui