GTK: Move code shared by future content/ classes and chrome/ to ui/.

ui/base/gtk/focus_store_gtk.h

Index: ui/base/gtk/focus_store_gtk.h
diff --git a/chrome/browser/ui/gtk/focus_store_gtk.h b/ui/base/gtk/focus_store_gtk.h
similarity index 81%
rename from chrome/browser/ui/gtk/focus_store_gtk.h
rename to ui/base/gtk/focus_store_gtk.h
index 012332e48c9c297bf8f329b7d7e5a4af53494553..e237ee169bc25dec6cf28ee6c03a5e32d682d470 100644
--- a/chrome/browser/ui/gtk/focus_store_gtk.h
+++ b/ui/base/gtk/focus_store_gtk.h
@@ -2,19 +2,21 @@
 // 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_FOCUS_STORE_GTK_H_
-#define CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_
+#ifndef UI_BASE_GTK_FOCUS_STORE_GTK_H_
+#define UI_BASE_GTK_FOCUS_STORE_GTK_H_
 #pragma once
 
 #include "base/basictypes.h"
+#include "ui/base/ui_export.h"
 
 typedef struct _GtkWidget GtkWidget;
 
-class FocusStoreGtk {
+namespace ui {
+
+class UI_EXPORT FocusStoreGtk {
  public:
   FocusStoreGtk();
-
-  virtual ~FocusStoreGtk();
+  ~FocusStoreGtk();
 
   GtkWidget* widget() const { return widget_; }
 
@@ -40,4 +42,6 @@ class FocusStoreGtk {
   DISALLOW_COPY_AND_ASSIGN(FocusStoreGtk);
 };
 
-#endif  // CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_
+}  // namespace ui
+
+#endif  // UI_BASE_GTK_FOCUS_STORE_GTK_H_