Linux UI: Fix profile chooser button background color

chrome/browser/ui/libgtkui/native_theme_gtk3.cc

 // Copyright 2016 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/libgtkui/native_theme_gtk3.h"
 
 #include <gtk/gtk.h>
 
 #include "chrome/browser/ui/libgtkui/chrome_gtk_frame.h"
 #include "chrome/browser/ui/libgtkui/chrome_gtk_menu_subclasses.h"
@@ skipping 86 matching lines @@
       return GetBorderColor("GtkEntry#entry:focus");
     case ui::NativeTheme::kColorId_UnfocusedBorderColor:
       return GetBorderColor("GtkEntry#entry");
 
     // Menu
     case ui::NativeTheme::kColorId_MenuBackgroundColor:
       return GetBgColor("GtkMenu#menu");
     case ui::NativeTheme::kColorId_MenuBorderColor:
       return GetBorderColor("GtkMenu#menu");
     case ui::NativeTheme::kColorId_FocusedMenuItemBackgroundColor:
-      return GetBgColor("GtkMenu#menu GtkMenuItem#menuitem:focus");
+      return GetBgColor("GtkMenu#menu GtkMenuItem#menuitem:hover");
     case ui::NativeTheme::kColorId_EnabledMenuItemForegroundColor:
       return GetFgColor("GtkMenu#menu GtkMenuItem#menuitem GtkLabel#label");
     case ui::NativeTheme::kColorId_SelectedMenuItemForegroundColor:
       return GetFgColor(
           "GtkMenu#menu GtkMenuItem#menuitem:selected GtkLabel#label");
     case ui::NativeTheme::kColorId_DisabledMenuItemForegroundColor:
       return GetFgColor(
           "GtkMenu#menu GtkMenuItem#menuitem:disabled GtkLabel#label");
     case ui::NativeTheme::kColorId_MenuItemSubtitleColor:
       return GetFgColor(
@@ skipping 428 matching lines @@
 
   if (frame_top_area.incognito) {
     bitmap = SkBitmapOperations::CreateHSLShiftedBitmap(
         bitmap, kDefaultTintFrameIncognito);
   }
 
   canvas->drawBitmap(bitmap, rect.x(), rect.y());
 }
 
 }  // namespace libgtkui