Erase LinkDisambiguation code on desktop.

content/renderer/android/disambiguation_popup_helper.h

 // Copyright (c) 2012 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 CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
-#define CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
+#ifndef CONTENT_RENDERER_ANDROID_DISAMBIGUATION_POPUP_HELPER_H_
+#define CONTENT_RENDERER_ANDROID_DISAMBIGUATION_POPUP_HELPER_H_
 
 #include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 
 namespace gfx {
 class Rect;
 class Size;
 }
 
 namespace blink {
 struct WebRect;
 }
 
 namespace content {
 
 // Contains functions to calculate proper scaling factor and popup size
 class DisambiguationPopupHelper {
  public:
   CONTENT_EXPORT static float ComputeZoomAreaAndScaleFactor(
       const gfx::Rect& tap_rect,
       const blink::WebVector<blink::WebRect>& target_rects,
       const gfx::Size& screen_size,
       const gfx::Size& visible_content_size,
       float total_scale,
       gfx::Rect* zoom_rect);
 };
 
 }  // namespace content
 
-#endif  // CONTENT_RENDERER_DISAMBIGUATION_POPUP_HELPER_H_
+#endif  // CONTENT_RENDERER_ANDROID_DISAMBIGUATION_POPUP_HELPER_H_