Merge the LinuxUI interface from its own .so into libviews.so.

ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc

Index: ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
diff --git a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
index e405bf6e4bfdfd1000c7678b879954ca72aff1ea..acb84ff89b6b9cf82dea27956b8f8474c477b379 100644
--- a/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
+++ b/ui/views/widget/desktop_aura/desktop_root_window_host_x11.cc
@@ -25,13 +25,13 @@
 #include "ui/base/x/x11_util.h"
 #include "ui/gfx/insets.h"
 #include "ui/gfx/path_x11.h"
-#include "ui/linux_ui/linux_ui.h"
 #include "ui/native_theme/native_theme.h"
 #include "ui/views/corewm/compound_event_filter.h"
 #include "ui/views/corewm/corewm_switches.h"
 #include "ui/views/corewm/cursor_manager.h"
 #include "ui/views/corewm/focus_controller.h"
 #include "ui/views/ime/input_method.h"
+#include "ui/views/linux_ui/linux_ui.h"
 #include "ui/views/widget/desktop_aura/desktop_cursor_loader_updater_aurax11.h"
 #include "ui/views/widget/desktop_aura/desktop_dispatcher_client.h"
 #include "ui/views/widget/desktop_aura/desktop_drag_drop_client_aurax11.h"
@@ -1322,7 +1322,7 @@ DesktopRootWindowHost* DesktopRootWindowHost::Create(
 
 // static
 ui::NativeTheme* DesktopRootWindowHost::GetNativeTheme(aura::Window* window) {
-  const ui::LinuxUI* linux_ui = ui::LinuxUI::instance();
+  const views::LinuxUI* linux_ui = views::LinuxUI::instance();
   if (linux_ui) {
     ui::NativeTheme* native_theme = linux_ui->GetNativeTheme();
     if (native_theme)