[Telemetry] Reorganize everything.

tools/telemetry/telemetry/page/scrolling_action.js

 // 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.
 
 // This file provides the ScrollingAction object, which scrolls a page
 // from top to bottom:
 //   1. var action = new __ScrollingAction(callback)
 //   2. action.start(element_to_scroll)
 'use strict';
 
@@ skipping 141 matching lines @@
     this.endMeasuringHook();
 
     // We're done.
     if (this.callback_)
       this.callback_();
   };
 
   window.__ScrollingAction = ScrollingAction;
   window.__ScrollingAction_GetBoundingVisibleRect = getBoundingVisibleRect;
 })();