Move page/actions to internal/actions.

tools/telemetry/telemetry/internal/actions/drag.js

 // Copyright 2015 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 DragAction object, which performs drag on a page
 // using given start and end positions:
 //   1. var action = new __DragAction(callback)
 //   2. action.start(drag_options)
 'use strict';
 
@@ skipping 50 matching lines @@
     this.endMeasuringHook();
 
     // We're done.
     if (this.callback_)
       this.callback_();
   };
 
   window.__DragAction = DragAction;
   window.__DragAction_SupportedByBrowser = supportedByBrowser;
 })();