Remove trailing spaces from js files.

src/debug-debugger.js

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 2100 matching lines @@
 
 DebugCommandProcessor.prototype.changeLiveRequest_ = function(request, response) {
   if (!Debug.LiveEdit) {
     return response.failed('LiveEdit feature is not supported');
   }
   if (!request.arguments) {
     return response.failed('Missing arguments');
   }
   var script_id = request.arguments.script_id;
   var preview_only = !!request.arguments.preview_only;
-  
+
   var scripts = %DebugGetLoadedScripts();
 
   var the_script = null;
   for (var i = 0; i < scripts.length; i++) {
     if (scripts[i].id == script_id) {
       the_script = scripts[i];
     }
   }
   if (!the_script) {
     response.failed('Script not found');
     return;
   }
 
   var change_log = new Array();
 
   if (!IS_STRING(request.arguments.new_source)) {
     throw "new_source argument expected";
   }
 
   var new_source = request.arguments.new_source;
-  
+
   var result_description = Debug.LiveEdit.SetScriptSource(the_script,
       new_source, preview_only, change_log);
   response.body = {change_log: change_log, result: result_description};
-  
+
   if (!preview_only && !this.running_ && result_description.stack_modified) {
     response.body.stepin_recommended = true;
   }
 };
 
 
 DebugCommandProcessor.prototype.debuggerFlagsRequest_ = function(request,
                                                                  response) {
   // Check for legal request.
   if (!request.arguments) {
@@ skipping 145 matching lines @@
     case 'string':
     case 'number':
       json = value;
       break
 
     default:
       json = null;
   }
   return json;
 }