Make sure the labels in the popup list are left aligned.

Bug: 803815
Change-Id: I32dbf0ed1736339f3420d113a1a5a6440c7b8542
Reviewed-on: https://chromium-review.googlesource.com/887243Reviewed-by: Bret Sepulveda <bsep@chromium.org>
Commit-Queue: Allen Bauer <kylixrd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#532420}

chrome/browser/ui/views/content_setting_bubble_contents.cc

@@ -224,6 +224,7 @@ void ContentSettingBubbleContents::ListItemContainer::AddItem(
     icon->SetImage(item.image.AsImageSkia());
     label = new views::Label(item.title);
   }
+  label->SetHorizontalAlignment(gfx::HorizontalAlignment::ALIGN_LEFT);
   list_item_views_.push_back(Row(icon, label));
   AddRowToLayout(list_item_views_.back());
 }