Fix namespace for src/ui/display/.

ui/ozone/platform/wayland/ozone_platform_wayland.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/wayland/ozone_platform_wayland.h"
 
 #include "base/memory/ptr_util.h"
 #include "ui/display/fake_display_delegate.h"
 #include "ui/ozone/common/stub_overlay_manager.h"
 #include "ui/ozone/platform/wayland/wayland_connection.h"
@@ skipping 42 matching lines @@
   std::unique_ptr<PlatformWindow> CreatePlatformWindow(
       PlatformWindowDelegate* delegate,
       const gfx::Rect& bounds) override {
     auto window =
         base::MakeUnique<WaylandWindow>(delegate, connection_.get(), bounds);
     if (!window->Initialize())
       return nullptr;
     return std::move(window);
   }
 
-  std::unique_ptr<NativeDisplayDelegate> CreateNativeDisplayDelegate()
+  std::unique_ptr<display::NativeDisplayDelegate> CreateNativeDisplayDelegate()
       override {
     return base::MakeUnique<display::FakeDisplayDelegate>();
   }
 
   void InitializeUI() override {
     InitParams default_params;
     InitializeUI(default_params);
   }
 
   void InitializeUI(const InitParams& args) override {
@@ skipping 40 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(OzonePlatformWayland);
 };
 
 }  // namespace
 
 OzonePlatform* CreateOzonePlatformWayland() {
   return new OzonePlatformWayland;
 }
 
 }  // namespace ui