Revert of Making answer card to behave like other results.

chrome/browser/chromeos/login/ui/web_contents_set_background_color.h

Index: chrome/browser/chromeos/login/ui/web_contents_set_background_color.h
diff --git a/chrome/browser/chromeos/login/ui/web_contents_set_background_color.h b/chrome/browser/chromeos/login/ui/web_contents_set_background_color.h
new file mode 100644
index 0000000000000000000000000000000000000000..024d31036b6344c92f1741150f0fcc3270bd1028
--- /dev/null
+++ b/chrome/browser/chromeos/login/ui/web_contents_set_background_color.h
@@ -0,0 +1,44 @@
+// Copyright 2016 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.
+
+#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEB_CONTENTS_SET_BACKGROUND_COLOR_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEB_CONTENTS_SET_BACKGROUND_COLOR_H_
+
+#include "content/public/browser/web_contents_observer.h"
+#include "content/public/browser/web_contents_user_data.h"
+
+// Defined in SkColor.h (32-bit ARGB color).
+using SkColor = unsigned int;
+
+namespace chromeos {
+
+// Ensures that the background color of a given WebContents instance is always
+// set to a given color value.
+class WebContentsSetBackgroundColor
+    : public content::WebContentsObserver,
+      public content::WebContentsUserData<WebContentsSetBackgroundColor> {
+ public:
+  static void CreateForWebContentsWithColor(content::WebContents* web_contents,
+                                            SkColor color);
+
+  ~WebContentsSetBackgroundColor() override;
+
+ private:
+  WebContentsSetBackgroundColor(content::WebContents* web_contents,
+                                SkColor color);
+
+  // content::WebContentsObserver:
+  void RenderViewReady() override;
+  void RenderViewCreated(content::RenderViewHost* render_view_host) override;
+  void RenderViewHostChanged(content::RenderViewHost* old_host,
+                             content::RenderViewHost* new_host) override;
+
+  SkColor color_;
+
+  DISALLOW_COPY_AND_ASSIGN(WebContentsSetBackgroundColor);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_WEB_CONTENTS_SET_BACKGROUND_COLOR_H_