Making answer card to behave like other results.

ui/views/controls/webview/web_contents_set_background_color.cc

-// Copyright 2016 The Chromium Authors. All rights reserved.
+// Copyright 2017 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/chromeos/login/ui/web_contents_set_background_color.h"
+#include "ui/views/controls/webview/web_contents_set_background_color.h"
 
 #include "base/memory/ptr_util.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/render_widget_host.h"
 #include "content/public/browser/render_widget_host_view.h"
 
-DEFINE_WEB_CONTENTS_USER_DATA_KEY(chromeos::WebContentsSetBackgroundColor);
+DEFINE_WEB_CONTENTS_USER_DATA_KEY(views::WebContentsSetBackgroundColor);
 
-namespace chromeos {
+namespace views {
 
 // static
 void WebContentsSetBackgroundColor::CreateForWebContentsWithColor(
     content::WebContents* web_contents,
     SkColor color) {
   if (FromWebContents(web_contents))
     return;
 
   // SupportsUserData::Data takes ownership over the
   // WebContentsSetBackgroundColor instance and will destroy it when the
@@ skipping 22 matching lines @@
     content::RenderViewHost* render_view_host) {
   render_view_host->GetWidget()->GetView()->SetBackgroundColor(color_);
 }
 
 void WebContentsSetBackgroundColor::RenderViewHostChanged(
     content::RenderViewHost* old_host,
     content::RenderViewHost* new_host) {
   new_host->GetWidget()->GetView()->SetBackgroundColor(color_);
 }
 
-}  // namespace chromeos
+}  // namespace views