views: Fix border around menu button in content settings bubble.

chrome/browser/ui/views/content_setting_bubble_contents.cc

Index: chrome/browser/ui/views/content_setting_bubble_contents.cc
diff --git a/chrome/browser/ui/views/content_setting_bubble_contents.cc b/chrome/browser/ui/views/content_setting_bubble_contents.cc
index 328a3aada364a009b35d195ea66252a557dab977..1045d27281f17b728212f3b09bec83fd603e6175 100644
--- a/chrome/browser/ui/views/content_setting_bubble_contents.cc
+++ b/chrome/browser/ui/views/content_setting_bubble_contents.cc
@@ -306,6 +306,7 @@ void ContentSettingBubbleContents::Init() {
       views::MenuButton* menu_button = new views::MenuButton(
           NULL, base::UTF8ToUTF16((i->second.selected_device.name)),
           this, true);
+      menu_button->SetStyle(views::Button::STYLE_BUTTON);
       menu_button->SetHorizontalAlignment(gfx::ALIGN_LEFT);
       menu_button->set_animate_on_state_change(false);