[debugger] remove frame argument for prepare step.

src/debug/debug.js

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 (function (global, utils) {
 "use strict";
 
 // ----------------------------------------------------------------------------
 // Imports
 
@@ skipping 925 matching lines @@
 
 function MakeExecutionState(break_id) {
   return new ExecutionState(break_id);
 }
 
 function ExecutionState(break_id) {
   this.break_id = break_id;
   this.selected_frame = 0;
 }
 
-ExecutionState.prototype.prepareStep = function(opt_action, opt_count,
-    opt_callframe) {
+ExecutionState.prototype.prepareStep = function(opt_action, opt_count) {
   var action = Debug.StepAction.StepIn;
   if (!IS_UNDEFINED(opt_action)) action = TO_NUMBER(opt_action);
   var count = opt_count ? TO_NUMBER(opt_count) : 1;
-  var callFrameId = 0;
-  if (!IS_UNDEFINED(opt_callframe)) {
-    callFrameId = opt_callframe.details_.frameId();
-  }
-
-  return %PrepareStep(this.break_id, action, count, callFrameId);
+  return %PrepareStep(this.break_id, action, count);
 };
 
 ExecutionState.prototype.evaluateGlobal = function(source, disable_break,
     opt_additional_context) {
   return MakeMirror(%DebugEvaluateGlobal(this.break_id, source,
                                          TO_BOOLEAN(disable_break),
                                          opt_additional_context));
 };
 
 ExecutionState.prototype.frameCount = function() {
@@ skipping 1650 matching lines @@
   "IsBreakPointTriggered", IsBreakPointTriggered,
   "UpdateScriptBreakPoints", UpdateScriptBreakPoints,
 ]);
 
 // Export to liveedit.js
 utils.Export(function(to) {
   to.GetScriptBreakPoints = GetScriptBreakPoints;
 });
 
 })