Add VectorIconButton functionality to ImageButton.

chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc

Index: chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc
diff --git a/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc b/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc
index 281adb4e9c3ad3d57b6d69abf89a1b877e37ac2b..a02cf87927cc519302c2a3586159ffe35290dd69 100644
--- a/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc
+++ b/chrome/browser/ui/views/apps/app_info_dialog/app_info_dialog_container.cc
@@ -19,8 +19,6 @@
 #include "ui/views/border.h"
 #include "ui/views/bubble/bubble_border.h"
 #include "ui/views/bubble/bubble_frame_view.h"
-#include "ui/views/controls/button/vector_icon_button.h"
-#include "ui/views/controls/button/vector_icon_button_delegate.h"
 #include "ui/views/layout/fill_layout.h"
 #include "ui/views/widget/widget.h"
 #include "ui/views/window/client_view.h"
@@ -128,8 +126,7 @@ class BaseDialogContainer : public views::DialogDelegateView {
 
 // The contents view for an App List Dialog, which covers the entire app list
 // and adds a close button.
-class AppListDialogContainer : public BaseDialogContainer,
-                               public views::VectorIconButtonDelegate {
+class AppListDialogContainer : public BaseDialogContainer {
  public:
   AppListDialogContainer(views::View* dialog_body,
                          const base::Closure& close_callback)