Clean up unused constant globals

chrome/browser/ui/gtk/download/download_started_animation_gtk.cc

 // 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.
 
 #include "chrome/browser/download/download_started_animation.h"
 
 #include <math.h>
 
 #include <gtk/gtk.h>
 
@@ skipping 14 matching lines @@
 using content::WebContents;
 
 namespace {
 
 // How long to spend moving downwards and fading out after waiting.
 const int kMoveTimeMs = 600;
 
 // The animation framerate.
 const int kFrameRateHz = 60;
 
-// What fraction of the frame height to move downward from the frame center.
-// Note that setting this greater than 0.5 will mean moving past the bottom of
-// the frame.
-const double kMoveFraction = 1.0 / 3.0;
-
 class DownloadStartedAnimationGtk : public gfx::LinearAnimation,
                                     public content::NotificationObserver {
  public:
   explicit DownloadStartedAnimationGtk(WebContents* web_contents);
 
   // DownloadStartedAnimation will delete itself, but this is public so
   // that we can use DeleteSoon().
   virtual ~DownloadStartedAnimationGtk();
 
  private:
@@ skipping 156 matching lines @@
   Close();
 }
 
 }  // namespace
 
 // static
 void DownloadStartedAnimation::Show(WebContents* web_contents) {
   // The animation will delete itself.
   new DownloadStartedAnimationGtk(web_contents);
 }