Add VectorIconButton functionality to ImageButton.

chrome/browser/ui/views/profiles/profile_chooser_view.h

Index: chrome/browser/ui/views/profiles/profile_chooser_view.h
diff --git a/chrome/browser/ui/views/profiles/profile_chooser_view.h b/chrome/browser/ui/views/profiles/profile_chooser_view.h
index 5ba9f45c66a5c2809cb71a04555218df0b196484..53e298b18cc1a45bd369ec957022d964e6ae2dfd 100644
--- a/chrome/browser/ui/views/profiles/profile_chooser_view.h
+++ b/chrome/browser/ui/views/profiles/profile_chooser_view.h
@@ -20,13 +20,12 @@
 #include "content/public/browser/web_contents_delegate.h"
 #include "google_apis/gaia/oauth2_token_service.h"
 #include "ui/views/bubble/bubble_dialog_delegate.h"
-#include "ui/views/controls/button/button.h"
+#include "ui/views/controls/button/image_button.h"
 #include "ui/views/controls/link_listener.h"
 #include "ui/views/controls/styled_label_listener.h"
 
 namespace views {
 class GridLayout;
-class ImageButton;
 class Link;
 class LabelButton;
 }
@@ -37,7 +36,7 @@ class Browser;
 // It displays a list of profiles and allows users to switch between profiles.
 class ProfileChooserView : public content::WebContentsDelegate,
                            public views::BubbleDialogDelegateView,
-                           public views::ButtonListener,
+                           public views::ImageButtonDelegate,
                            public views::LinkListener,
                            public views::StyledLabelListener,
                            public AvatarMenuObserver,
@@ -87,7 +86,7 @@ class ProfileChooserView : public content::WebContentsDelegate,
   // content::WebContentsDelegate:
   bool HandleContextMenu(const content::ContextMenuParams& params) override;
 
-  // views::ButtonListener:
+  // views::ImageButtonDelegate:
   void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // views::LinkListener: