Gtk3 ui: Add libgtk3ui as a separate build component

chrome/browser/ui/libgtkui/print_dialog_gtk2.cc

 // Copyright 2014 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 "chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h"
+#include "chrome/browser/ui/libgtkui/print_dialog_gtk2.h"
 
 #include <gtk/gtkunixprint.h>
 
 #include <algorithm>
 #include <cmath>
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/file_util_proxy.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/values.h"
-#include "chrome/browser/ui/libgtk2ui/gtk2_util.h"
-#include "chrome/browser/ui/libgtk2ui/printing_gtk2_util.h"
+#include "chrome/browser/ui/libgtkui/gtk2_util.h"
+#include "chrome/browser/ui/libgtkui/printing_gtk2_util.h"
 #include "printing/metafile.h"
 #include "printing/print_job_constants.h"
 #include "printing/print_settings.h"
 #include "ui/aura/window.h"
 #include "ui/events/platform/x11/x11_event_source.h"
 
 using content::BrowserThread;
 using printing::PageRanges;
 using printing::PrintSettings;
 
@@ skipping 149 matching lines @@
       dialog_(NULL),
       gtk_settings_(NULL),
       page_setup_(NULL),
       printer_(NULL) {
 }
 
 PrintDialogGtk2::~PrintDialogGtk2() {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   if (dialog_) {
-    aura::Window* parent = libgtk2ui::GetAuraTransientParent(dialog_);
+    aura::Window* parent = libgtkui::GetAuraTransientParent(dialog_);
     if (parent) {
       parent->RemoveObserver(this);
-      libgtk2ui::ClearAuraTransientParent(dialog_);
+      libgtkui::ClearAuraTransientParent(dialog_);
     }
     gtk_widget_destroy(dialog_);
     dialog_ = NULL;
   }
   if (gtk_settings_) {
     g_object_unref(gtk_settings_);
     gtk_settings_ = NULL;
   }
   if (page_setup_) {
     g_object_unref(page_setup_);
@@ skipping 119 matching lines @@
 }
 
 void PrintDialogGtk2::ShowDialog(
     gfx::NativeView parent_view,
     bool has_selection,
     const PrintingContextLinux::PrintSettingsCallback& callback) {
   callback_ = callback;
   DCHECK(!callback_.is_null());
 
   dialog_ = gtk_print_unix_dialog_new(NULL, NULL);
-  libgtk2ui::SetGtkTransientForAura(dialog_, parent_view);
+  libgtkui::SetGtkTransientForAura(dialog_, parent_view);
   if (parent_view)
     parent_view->AddObserver(this);
   g_signal_connect(dialog_, "delete-event",
                    G_CALLBACK(gtk_widget_hide_on_delete), NULL);
 
   // Handle the case when the existing |gtk_settings_| has "selection" selected
   // as the page range, but |has_selection| is false.
   if (!has_selection) {
     GtkPrintPages range = gtk_print_settings_get_print_pages(gtk_settings_);
     if (range == GTK_PRINT_PAGES_SELECTION)
@@ skipping 200 matching lines @@
   // Printing finished. Matches AddRef() in PrintDocument();
   Release();
 }
 
 void PrintDialogGtk2::InitPrintSettings(PrintSettings* settings) {
   InitPrintSettingsGtk(gtk_settings_, page_setup_, settings);
   context_->InitWithSettings(*settings);
 }
 
 void PrintDialogGtk2::OnWindowDestroying(aura::Window* window) {
-  DCHECK_EQ(libgtk2ui::GetAuraTransientParent(dialog_), window);
+  DCHECK_EQ(libgtkui::GetAuraTransientParent(dialog_), window);
 
-  libgtk2ui::ClearAuraTransientParent(dialog_);
+  libgtkui::ClearAuraTransientParent(dialog_);
   window->RemoveObserver(this);
   if (!callback_.is_null()) {
     callback_.Run(PrintingContextLinux::CANCEL);
     callback_.Reset();
   }
 }