Gtk3: Rename Gtk2UI and Get[FB]GColor

chrome/browser/ui/libgtkui/gtk_ui.h

Index: chrome/browser/ui/libgtkui/gtk_ui.h
diff --git a/chrome/browser/ui/libgtkui/gtk_ui.h b/chrome/browser/ui/libgtkui/gtk_ui.h
index 24e744ecde4b5432bd7d7b770d411c1f5c37b7bb..ba3dded32500b4d83d7cd17c1b70184be1fc04f9 100644
--- a/chrome/browser/ui/libgtkui/gtk_ui.h
+++ b/chrome/browser/ui/libgtkui/gtk_ui.h
@@ -27,10 +27,10 @@ class GConfListener;
 
 // Interface to GTK2 desktop features.
 //
-class Gtk2UI : public views::LinuxUI {
+class GtkUi : public views::LinuxUI {
  public:
-  Gtk2UI();
-  ~Gtk2UI() override;
+  GtkUi();
+  ~GtkUi() override;
 
   typedef base::Callback<ui::NativeTheme*(aura::Window* window)>
       NativeThemeGetter;
@@ -204,13 +204,13 @@ class Gtk2UI : public views::LinuxUI {
   NonClientMiddleClickAction middle_click_action_;
 
   // Used to override the native theme for a window. If no override is provided
-  // or the callback returns NULL, Gtk2UI will default to a NativeThemeGtk2
+  // or the callback returns NULL, GtkUi will default to a NativeThemeGtk2
   // instance.
   NativeThemeGetter native_theme_overrider_;
 
   float device_scale_factor_ = 1.0f;
 
-  DISALLOW_COPY_AND_ASSIGN(Gtk2UI);
+  DISALLOW_COPY_AND_ASSIGN(GtkUi);
 };
 
 }  // namespace libgtkui
@@ -220,6 +220,6 @@ class Gtk2UI : public views::LinuxUI {
 // interface, because eventually this .so will be loaded through dlopen at
 // runtime so our main binary can conditionally load GTK2 or GTK3 or EFL or
 // QT or whatever.
-LIBGTKUI_EXPORT views::LinuxUI* BuildGtk2UI();
+LIBGTKUI_EXPORT views::LinuxUI* BuildGtkUi();
 
 #endif  // CHROME_BROWSER_UI_LIBGTKUI_GTK_UI_H_