content: Move gtk_floating_container to ui/base/gtk/.

ui/base/gtk/gtk_floating_container.h

Index: ui/base/gtk/gtk_floating_container.h
diff --git a/chrome/browser/ui/gtk/gtk_floating_container.h b/ui/base/gtk/gtk_floating_container.h
similarity index 88%
rename from chrome/browser/ui/gtk/gtk_floating_container.h
rename to ui/base/gtk/gtk_floating_container.h
index 9b15b746808d11c0462e0123ca02082cc0c3858f..a6977df2d0dc6af08ecf7dba2e1a0b44916b4ff3 100644
--- a/chrome/browser/ui/gtk/gtk_floating_container.h
+++ b/ui/base/gtk/gtk_floating_container.h
@@ -2,13 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_GTK_GTK_FLOATING_CONTAINER_H_
-#define CHROME_BROWSER_UI_GTK_GTK_FLOATING_CONTAINER_H_
+#ifndef UI_BASE_GTK_GTK_FLOATING_CONTAINER_H_
+#define UI_BASE_GTK_GTK_FLOATING_CONTAINER_H_
 #pragma once
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
+#include "ui/base/ui_export.h"
+
 // A specialized container, which is a cross between a GtkBin and a
 // GtkFixed. This container dervies from GtkBin and the implementation of
 // gtk_container_add() is the same: only one GtkWidget can be added through
@@ -75,13 +77,14 @@ struct _GtkFloatingContainerChild {
   gint y;
 };
 
-GType      gtk_floating_container_get_type() G_GNUC_CONST;
-GtkWidget* gtk_floating_container_new();
-void       gtk_floating_container_add_floating(GtkFloatingContainer* container,
-                                               GtkWidget* widget);
+UI_EXPORT GType      gtk_floating_container_get_type() G_GNUC_CONST;
+UI_EXPORT GtkWidget* gtk_floating_container_new();
+UI_EXPORT void       gtk_floating_container_add_floating(
+    GtkFloatingContainer* container,
+    GtkWidget* widget);
 // Use gtk_container_remove to remove all widgets; both widgets added with
 // gtk_container_add() and gtk_floating_container_add_floating().
 
 G_END_DECLS
 
-#endif  // CHROME_BROWSER_UI_GTK_GTK_FLOATING_CONTAINER_H_
+#endif  // UI_BASE_GTK_GTK_FLOATING_CONTAINER_H_