Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/chromeos/wallpaper_source.h

Index: chrome/browser/ui/webui/options2/chromeos/wallpaper_source.h
diff --git a/chrome/browser/ui/webui/options2/chromeos/wallpaper_source2.h b/chrome/browser/ui/webui/options2/chromeos/wallpaper_source.h
similarity index 98%
rename from chrome/browser/ui/webui/options2/chromeos/wallpaper_source2.h
rename to chrome/browser/ui/webui/options2/chromeos/wallpaper_source.h
index f819bcf6a2a8853460980fbbe9a1009bcb59f436..607576cfb03db87e491041267d390ab0c3272f9b 100644
--- a/chrome/browser/ui/webui/options2/chromeos/wallpaper_source2.h
+++ b/chrome/browser/ui/webui/options2/chromeos/wallpaper_source.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE2_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE2_H_
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_
 #pragma once
 
 #include <string>
@@ -59,4 +59,4 @@ class WallpaperImageSource : public ChromeURLDataManager::DataSource {
 }  // namespace options2
 }  // namespace chromeos
 
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE2_H_
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_WALLPAPER_SOURCE_H_