Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc

Index: chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc
diff --git a/chrome/browser/ui/libgtk2ui/select_file_dialog_interactive_uitest.cc b/chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc
similarity index 95%
rename from chrome/browser/ui/libgtk2ui/select_file_dialog_interactive_uitest.cc
rename to chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc
index 424c80160ed9f21d111cebd0ee9695edcc752b16..2c7c6715997f37fb75b02ec2a72665aef594948d 100644
--- a/chrome/browser/ui/libgtk2ui/select_file_dialog_interactive_uitest.cc
+++ b/chrome/browser/ui/libgtkui/select_file_dialog_interactive_uitest.cc
@@ -2,12 +2,11 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/browser/ui/libgtk2ui/select_file_dialog_impl_gtk2.h"
-
 #include "base/macros.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/chrome_select_file_policy.h"
+#include "chrome/browser/ui/libgtkui/select_file_dialog_impl_gtk2.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/interactive_test_utils.h"
@@ -19,7 +18,7 @@
 
 using BrowserSelectFileDialogTest = InProcessBrowserTest;
 
-namespace libgtk2ui {
+namespace libgtkui {
 
 // FilePicker opens a GtkFileChooser.
 class FilePicker : public ui::SelectFileDialog::Listener {
@@ -66,7 +65,7 @@ class FilePicker : public ui::SelectFileDialog::Listener {
   DISALLOW_COPY_AND_ASSIGN(FilePicker);
 };
 
-}  // namespace libgtk2ui
+}  // namespace libgtkui
 
 // Test that the file-picker is modal.
 IN_PROC_BROWSER_TEST_F(BrowserSelectFileDialogTest, ModalTest) {
@@ -76,7 +75,7 @@ IN_PROC_BROWSER_TEST_F(BrowserSelectFileDialogTest, ModalTest) {
 
   // Leaks in GtkFileChooserDialog. http://crbug.com/537468
   ANNOTATE_SCOPED_MEMORY_LEAK;
-  libgtk2ui::FilePicker file_picker(browser()->window());
+  libgtkui::FilePicker file_picker(browser()->window());
 
   gfx::NativeWindow window = browser()->window()->GetNativeWindow();
   views::Widget* widget = views::Widget::GetWidgetForNativeWindow(window);