Updating the Chromium reference build for Windows. The continuous...

resources/inspector/debugger_agent.js

-// Copyright (c) 2009 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.
-
-/**
- * @fileoverview Provides communication interface to remote v8 debugger. See
- * protocol decription at http://code.google.com/p/v8/wiki/DebuggerProtocol
- */
-goog.provide('devtools.DebuggerAgent');
-
-
-/**
- * @constructor
- */
-devtools.DebuggerAgent = function() {
-  RemoteDebuggerAgent.DebuggerOutput =
-      goog.bind(this.handleDebuggerOutput_, this);
-  RemoteDebuggerAgent.SetContextId =
-      goog.bind(this.setContextId_, this);
-  RemoteDebuggerAgent.DidGetActiveProfilerModules =
-      goog.bind(this.didGetActiveProfilerModules_, this);
-  RemoteDebuggerAgent.DidGetNextLogLines =
-      goog.bind(this.didGetNextLogLines_, this);
-
-  /**
-   * Id of the inspected page global context. It is used for filtering scripts.
-   * @type {number}
-   */
-  this.contextId_ = null;
-
-  /**
-   * Mapping from script id to script info.
-   * @type {Object}
-   */
-  this.parsedScripts_ = null;
-
-  /**
-   * Mapping from the request id to the devtools.BreakpointInfo for the
-   * breakpoints whose v8 ids are not set yet. These breakpoints are waiting for
-   * 'setbreakpoint' responses to learn their ids in the v8 debugger.
-   * @see #handleSetBreakpointResponse_
-   * @type {Object}
-   */
-  this.requestNumberToBreakpointInfo_ = null;
-
-  /**
-   * Information on current stack frames.
-   * @type {Array.<devtools.CallFrame>}
-   */
-  this.callFrames_ = [];
-
-  /**
-   * Whether to stop in the debugger on the exceptions.
-   * @type {boolean}
-   */
-  this.pauseOnExceptions_ = true;
-
-  /**
-   * Mapping: request sequence number->callback.
-   * @type {Object}
-   */
-  this.requestSeqToCallback_ = null;
-
-  /**
-   * Whether the scripts list has been requested.
-   * @type {boolean}
-   */
-  this.scriptsCacheInitialized_ = false;
-
-  /**
-   * Whether the scripts list should be requested next time when context id is
-   * set.
-   * @type {boolean}
-   */
-  this.requestScriptsWhenContextIdSet_ = false;
-
-  /**
-   * Active profiler modules flags.
-   * @type {number}
-   */
-  this.activeProfilerModules_ =
-      devtools.DebuggerAgent.ProfilerModules.PROFILER_MODULE_NONE;
-
-  /**
-   * Profiler processor instance.
-   * @type {devtools.profiler.Processor}
-   */
-  this.profilerProcessor_ = new devtools.profiler.Processor();
-
-  /**
-   * Container of all breakpoints set using resource URL. These breakpoints
-   * survive page reload. Breakpoints set by script id(for scripts that don't
-   * have URLs) are stored in ScriptInfo objects.
-   * @type {Object}
-   */
-  this.urlToBreakpoints_ = {};
-
-
-  /**
-   * Exception message that is shown to user while on exception break.
-   * @type {WebInspector.ConsoleMessage}
-   */
-  this.currentExceptionMessage_ = null;
-};
-
-
-/**
- * A copy of the scope types from v8/src/mirror-delay.js
- * @enum {number}
- */
-devtools.DebuggerAgent.ScopeType = {
-  Global: 0,
-  Local: 1,
-  With: 2,
-  Closure: 3,
-  Catch: 4
-};
-
-
-/**
- * A copy of enum from include/v8.h
- * @enum {number}
- */
-devtools.DebuggerAgent.ProfilerModules = {
-  PROFILER_MODULE_NONE: 0,
-  PROFILER_MODULE_CPU: 1,
-  PROFILER_MODULE_HEAP_STATS: 1 << 1,
-  PROFILER_MODULE_JS_CONSTRUCTORS: 1 << 2,
-  PROFILER_MODULE_HEAP_SNAPSHOT: 1 << 16
-};
-
-
-/**
- * Resets debugger agent to its initial state.
- */
-devtools.DebuggerAgent.prototype.reset = function() {
-  this.contextId_ = null;
-  // No need to request scripts since they all will be pushed in AfterCompile
-  // events.
-  this.requestScriptsWhenContextIdSet_ = false;
-  this.parsedScripts_ = {};
-  this.requestNumberToBreakpointInfo_ = {};
-  this.callFrames_ = [];
-  this.requestSeqToCallback_ = {};
-
-  // Profiler isn't reset because it contains no data that is
-  // specific for a particular V8 instance. All such data is
-  // managed by an agent on the Render's side.
-};
-
-
-/**
- * Initializes scripts UI. This method is called every time Scripts panel
- * is shown. It will send request for context id if it's not set yet.
- */
-devtools.DebuggerAgent.prototype.initUI = function() {
-  // Initialize scripts cache when Scripts panel is shown first time.
-  if (this.scriptsCacheInitialized_) {
-    return;
-  }
-  this.scriptsCacheInitialized_ = true;
-  if (this.contextId_) {
-    // We already have context id. This means that we are here from the
-    // very beginning of the page load cycle and hence will get all scripts
-    // via after-compile events. No need to request scripts for this session.
-    return;
-  }
-  // Script list should be requested only when current context id is known.
-  RemoteDebuggerAgent.GetContextId();
-  this.requestScriptsWhenContextIdSet_ = true;
-};
-
-
-/**
- * Asynchronously requests the debugger for the script source.
- * @param {number} scriptId Id of the script whose source should be resolved.
- * @param {function(source:?string):void} callback Function that will be called
- *     when the source resolution is completed. 'source' parameter will be null
- *     if the resolution fails.
- */
-devtools.DebuggerAgent.prototype.resolveScriptSource = function(
-    scriptId, callback) {
-  var script = this.parsedScripts_[scriptId];
-  if (!script || script.isUnresolved()) {
-    callback(null);
-    return;
-  }
-
-  var cmd = new devtools.DebugCommand('scripts', {
-    'ids': [scriptId],
-    'includeSource': true
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-  // Force v8 execution so that it gets to processing the requested command.
-  RemoteToolsAgent.ExecuteVoidJavaScript();
-
-  this.requestSeqToCallback_[cmd.getSequenceNumber()] = function(msg) {
-    if (msg.isSuccess()) {
-      var scriptJson = msg.getBody()[0];
-      callback(scriptJson.source);
-    } else {
-      callback(null);
-    }
-  };
-};
-
-
-/**
- * Tells the v8 debugger to stop on as soon as possible.
- */
-devtools.DebuggerAgent.prototype.pauseExecution = function() {
-  RemoteDebuggerAgent.DebugBreak();
-};
-
-
-/**
- * @param {number} sourceId Id of the script fot the breakpoint.
- * @param {number} line Number of the line for the breakpoint.
- * @param {?string} condition The breakpoint condition.
- */
-devtools.DebuggerAgent.prototype.addBreakpoint = function(
-    sourceId, line, condition) {
-  var script = this.parsedScripts_[sourceId];
-  if (!script) {
-    return;
-  }
-
-  line = devtools.DebuggerAgent.webkitToV8LineNumber_(line);
-
-  var commandArguments;
-  if (script.getUrl()) {
-    var breakpoints = this.urlToBreakpoints_[script.getUrl()];
-    if (breakpoints && breakpoints[line]) {
-      return;
-    }
-    if (!breakpoints) {
-      breakpoints = {};
-      this.urlToBreakpoints_[script.getUrl()] = breakpoints;
-    }
-
-    var breakpointInfo = new devtools.BreakpointInfo(line);
-    breakpoints[line] = breakpointInfo;
-
-    commandArguments = {
-      'groupId': this.contextId_,
-      'type': 'script',
-      'target': script.getUrl(),
-      'line': line,
-      'condition': condition
-    };
-  } else {
-    var breakpointInfo = script.getBreakpointInfo(line);
-    if (breakpointInfo) {
-      return;
-    }
-
-    breakpointInfo = new devtools.BreakpointInfo(line);
-    script.addBreakpointInfo(breakpointInfo);
-
-    commandArguments = {
-      'groupId': this.contextId_,
-      'type': 'scriptId',
-      'target': sourceId,
-      'line': line,
-      'condition': condition
-    };
-  }
-
-  var cmd = new devtools.DebugCommand('setbreakpoint', commandArguments);
-
-  this.requestNumberToBreakpointInfo_[cmd.getSequenceNumber()] = breakpointInfo;
-
-  devtools.DebuggerAgent.sendCommand_(cmd);
-  // Force v8 execution so that it gets to processing the requested command.
-  // It is necessary for being able to change a breakpoint just after it
-  // has been created (since we need an existing breakpoint id for that).
-  RemoteToolsAgent.ExecuteVoidJavaScript();
-};
-
-
-/**
- * @param {number} sourceId Id of the script for the breakpoint.
- * @param {number} line Number of the line for the breakpoint.
- */
-devtools.DebuggerAgent.prototype.removeBreakpoint = function(sourceId, line) {
-  var script = this.parsedScripts_[sourceId];
-  if (!script) {
-    return;
-  }
-
-  line = devtools.DebuggerAgent.webkitToV8LineNumber_(line);
-
-  var breakpointInfo;
-  if (script.getUrl()) {
-    var breakpoints = this.urlToBreakpoints_[script.getUrl()];
-    breakpointInfo = breakpoints[line];
-    delete breakpoints[line];
-  } else {
-    breakpointInfo = script.getBreakpointInfo(line);
-    if (breakpointInfo) {
-      script.removeBreakpointInfo(breakpointInfo);
-    }
-  }
-
-  if (!breakpointInfo) {
-    return;
-  }
-
-  breakpointInfo.markAsRemoved();
-
-  var id = breakpointInfo.getV8Id();
-
-  // If we don't know id of this breakpoint in the v8 debugger we cannot send
-  // 'clearbreakpoint' request. In that case it will be removed in
-  // 'setbreakpoint' response handler when we learn the id.
-  if (id != -1) {
-    this.requestClearBreakpoint_(id);
-  }
-};
-
-
-/**
- * @param {number} sourceId Id of the script for the breakpoint.
- * @param {number} line Number of the line for the breakpoint.
- * @param {?string} condition New breakpoint condition.
- */
-devtools.DebuggerAgent.prototype.updateBreakpoint = function(
-    sourceId, line, condition) {
-  var script = this.parsedScripts_[sourceId];
-  if (!script) {
-    return;
-  }
-
-  line = devtools.DebuggerAgent.webkitToV8LineNumber_(line);
-
-  var breakpointInfo;
-  if (script.getUrl()) {
-    var breakpoints = this.urlToBreakpoints_[script.getUrl()];
-    breakpointInfo = breakpoints[line];
-  } else {
-    breakpointInfo = script.getBreakpointInfo(line);
-  }
-
-  var id = breakpointInfo.getV8Id();
-
-  // If we don't know id of this breakpoint in the v8 debugger we cannot send
-  // the 'changebreakpoint' request.
-  if (id != -1) {
-    // TODO(apavlov): make use of the real values for 'enabled' and
-    // 'ignoreCount' when appropriate.
-    this.requestChangeBreakpoint_(id, true, condition, null);
-  }
-};
-
-
-/**
- * Tells the v8 debugger to step into the next statement.
- */
-devtools.DebuggerAgent.prototype.stepIntoStatement = function() {
-  this.stepCommand_('in');
-};
-
-
-/**
- * Tells the v8 debugger to step out of current function.
- */
-devtools.DebuggerAgent.prototype.stepOutOfFunction = function() {
-  this.stepCommand_('out');
-};
-
-
-/**
- * Tells the v8 debugger to step over the next statement.
- */
-devtools.DebuggerAgent.prototype.stepOverStatement = function() {
-  this.stepCommand_('next');
-};
-
-
-/**
- * Tells the v8 debugger to continue execution after it has been stopped on a
- * breakpoint or an exception.
- */
-devtools.DebuggerAgent.prototype.resumeExecution = function() {
-  this.clearExceptionMessage_();
-  var cmd = new devtools.DebugCommand('continue');
-  devtools.DebuggerAgent.sendCommand_(cmd);
-};
-
-
-/**
- * Creates exception message and schedules it for addition to the resource upon
- * backtrace availability.
- * @param {string} url Resource url.
- * @param {number} line Resource line number.
- * @param {string} message Exception text.
- */
-devtools.DebuggerAgent.prototype.createExceptionMessage_ = function(
-    url, line, message) {
-  this.currentExceptionMessage_ = new WebInspector.ConsoleMessage(
-      WebInspector.ConsoleMessage.MessageSource.JS,
-      WebInspector.ConsoleMessage.MessageType.Log,
-      WebInspector.ConsoleMessage.MessageLevel.Error,
-      line,
-      url,
-      0 /* group level */,
-      1 /* repeat count */,
-      '[Exception] ' + message);
-};
-
-
-/**
- * Shows pending exception message that is created with createExceptionMessage_
- * earlier.
- */
-devtools.DebuggerAgent.prototype.showPendingExceptionMessage_ = function() {
-  if (!this.currentExceptionMessage_) {
-    return;
-  }
-  var msg = this.currentExceptionMessage_;
-  var resource = WebInspector.resourceURLMap[msg.url];
-  if (resource) {
-    msg.resource = resource;
-    WebInspector.panels.resources.addMessageToResource(resource, msg);
-  } else {
-    this.currentExceptionMessage_ = null;
-  }
-};
-
-
-/**
- * Clears exception message from the resource.
- */
-devtools.DebuggerAgent.prototype.clearExceptionMessage_ = function() {
-  if (this.currentExceptionMessage_) {
-    var messageElement =
-        this.currentExceptionMessage_._resourceMessageLineElement;
-    var bubble = messageElement.parentElement;
-    bubble.removeChild(messageElement);
-    if (!bubble.firstChild) {
-      // Last message in bubble removed.
-      bubble.parentElement.removeChild(bubble);
-    }
-    this.currentExceptionMessage_ = null;
-  }
-};
-
-
-/**
- * @return {boolean} True iff the debugger will pause execution on the
- * exceptions.
- */
-devtools.DebuggerAgent.prototype.pauseOnExceptions = function() {
-  return this.pauseOnExceptions_;
-};
-
-
-/**
- * Tells whether to pause in the debugger on the exceptions or not.
- * @param {boolean} value True iff execution should be stopped in the debugger
- * on the exceptions.
- */
-devtools.DebuggerAgent.prototype.setPauseOnExceptions = function(value) {
-  this.pauseOnExceptions_ = value;
-};
-
-
-/**
- * Sends 'evaluate' request to the debugger.
- * @param {Object} arguments Request arguments map.
- * @param {function(devtools.DebuggerMessage)} callback Callback to be called
- *     when response is received.
- */
-devtools.DebuggerAgent.prototype.requestEvaluate = function(
-    arguments, callback) {
-  var cmd = new devtools.DebugCommand('evaluate', arguments);
-  devtools.DebuggerAgent.sendCommand_(cmd);
-  this.requestSeqToCallback_[cmd.getSequenceNumber()] = callback;
-};
-
-
-/**
- * Sends 'lookup' request for each unresolved property of the object. When
- * response is received the properties will be changed with their resolved
- * values.
- * @param {Object} object Object whose properties should be resolved.
- * @param {function(devtools.DebuggerMessage)} Callback to be called when all
- *     children are resolved.
- * @param {boolean} noIntrinsic Whether intrinsic properties should be included.
- */
-devtools.DebuggerAgent.prototype.resolveChildren = function(object, callback,
-                                                            noIntrinsic) {
-  if ('handle' in object) {
-    var result = [];
-    devtools.DebuggerAgent.formatObjectProperties_(object, result,
-                                                   noIntrinsic);
-    callback(result);
-  } else {
-    this.requestLookup_([object.ref], function(msg) {
-      var result = [];
-      if (msg.isSuccess()) {
-        var handleToObject = msg.getBody();
-        var resolved = handleToObject[object.ref];
-        devtools.DebuggerAgent.formatObjectProperties_(resolved, result,
-                                                       noIntrinsic);
-        callback(result);
-      } else {
-        callback([]);
-      }
-    });
-  }
-};
-
-
-/**
- * Sends 'scope' request for the scope object to resolve its variables.
- * @param {Object} scope Scope to be resolved.
- * @param {function(Array.<WebInspector.ObjectPropertyProxy>)} callback
- *     Callback to be called when all scope variables are resolved.
- */
-devtools.DebuggerAgent.prototype.resolveScope = function(scope, callback) {
-  var cmd = new devtools.DebugCommand('scope', {
-    'frameNumber': scope.frameNumber,
-    'number': scope.index,
-    'compactFormat': true
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-  this.requestSeqToCallback_[cmd.getSequenceNumber()] = function(msg) {
-      var result = [];
-    if (msg.isSuccess()) {
-      var scopeObjectJson = msg.getBody().object;
-      devtools.DebuggerAgent.formatObjectProperties_(scopeObjectJson, result,
-                                                     true /* no intrinsic */);
-    }
-    callback(result);
-  };
-};
-
-
-/**
- * Sends 'scopes' request for the frame object to resolve all variables
- * available in the frame.
- * @param {number} callFrameId Id of call frame whose variables need to
- *     be resolved.
- * @param {function(Object)} callback Callback to be called when all frame
- *     variables are resolved.
- */
-devtools.DebuggerAgent.prototype.resolveFrameVariables_ = function(
-    callFrameId, callback) {
-  var result = {};
-
-  var frame = this.callFrames_[callFrameId];
-  if (!frame) {
-    callback(result);
-    return;
-  }
-
-  var waitingResponses = 0;
-  function scopeResponseHandler(msg) {
-    waitingResponses--;
-
-    if (msg.isSuccess()) {
-      var properties = msg.getBody().object.properties;
-      for (var j = 0; j < properties.length; j++) {
-        result[properties[j].name] = true;
-      }
-    }
-
-    // When all scopes are resolved invoke the callback.
-    if (waitingResponses == 0) {
-      callback(result);
-    }
-  };
-
-  for (var i = 0; i < frame.scopeChain.length; i++) {
-    var scope = frame.scopeChain[i].objectId;
-    if (scope.type == devtools.DebuggerAgent.ScopeType.Global) {
-      // Do not resolve global scope since it takes for too long.
-      // TODO(yurys): allow to send only property names in the response.
-      continue;
-    }
-    var cmd = new devtools.DebugCommand('scope', {
-      'frameNumber': scope.frameNumber,
-      'number': scope.index,
-      'compactFormat': true
-    });
-    devtools.DebuggerAgent.sendCommand_(cmd);
-    this.requestSeqToCallback_[cmd.getSequenceNumber()] =
-        scopeResponseHandler;
-    waitingResponses++;
-  }
-};
-
-/**
- * Evaluates the expressionString to an object in the call frame and reports
- * all its properties.
- * @param{string} expressionString Expression whose properties should be
- *     collected.
- * @param{number} callFrameId The frame id.
- * @param{function(Object result,bool isException)} reportCompletions Callback
- *     function.
- */
-devtools.DebuggerAgent.prototype.resolveCompletionsOnFrame = function(
-      expressionString, callFrameId, reportCompletions) {
-    if (expressionString) {
-      expressionString = 'var obj = ' + expressionString +
-          '; var names = {}; for (var n in obj) { names[n] = true; };' +
-          'names;';
-      this.evaluateInCallFrame(
-          callFrameId,
-          expressionString,
-          function(result) {
-            var names = {};
-            if (!result.isException) {
-              var props = result.value.objectId.properties;
-              // Put all object properties into the map.
-              for (var i = 0; i < props.length; i++) {
-                names[props[i].name] = true;
-              }
-            }
-            reportCompletions(names, result.isException);
-          });
-    } else {
-      this.resolveFrameVariables_(callFrameId,
-          function(result) {
-            reportCompletions(result, false /* isException */);
-          });
-    }
-};
-
-
-/**
- * Sets up callbacks that deal with profiles processing.
- */
-devtools.DebuggerAgent.prototype.setupProfilerProcessorCallbacks = function() {
-  // A temporary icon indicating that the profile is being processed.
-  var processingIcon = new WebInspector.SidebarTreeElement(
-      'profile-sidebar-tree-item',
-      WebInspector.UIString('Processing...'),
-      '', null, false);
-  var profilesSidebar = WebInspector.panels.profiles.getProfileType(
-      WebInspector.CPUProfileType.TypeId).treeElement;
-
-  this.profilerProcessor_.setCallbacks(
-      function onProfileProcessingStarted() {
-        // Set visually empty string. Subtitle hiding is done via styles
-        // manipulation which doesn't play well with dynamic append / removal.
-        processingIcon.subtitle = ' ';
-        profilesSidebar.appendChild(processingIcon);
-      },
-      function onProfileProcessingStatus(ticksCount) {
-        processingIcon.subtitle =
-            WebInspector.UIString('%d ticks processed', ticksCount);
-      },
-      function onProfileProcessingFinished(profile) {
-        profilesSidebar.removeChild(processingIcon);
-        WebInspector.addProfile(profile);
-        // If no profile is currently shown, show the new one.
-        var profilesPanel = WebInspector.panels.profiles;
-        if (!profilesPanel.visibleView) {
-          profilesPanel.showProfile(profile);
-        }
-      }
-  );
-};
-
-
-/**
- * Initializes profiling state.
- */
-devtools.DebuggerAgent.prototype.initializeProfiling = function() {
-  this.setupProfilerProcessorCallbacks();
-  RemoteDebuggerAgent.GetActiveProfilerModules();
-};
-
-
-/**
- * Starts profiling.
- * @param {number} modules List of modules to enable.
- */
-devtools.DebuggerAgent.prototype.startProfiling = function(modules) {
-  RemoteDebuggerAgent.StartProfiling(modules);
-  if (modules &
-      devtools.DebuggerAgent.ProfilerModules.PROFILER_MODULE_HEAP_SNAPSHOT) {
-    // Active modules will not change, instead, a snapshot will be logged.
-    RemoteDebuggerAgent.GetNextLogLines();
-  } else {
-    RemoteDebuggerAgent.GetActiveProfilerModules();
-  }
-};
-
-
-/**
- * Stops profiling.
- */
-devtools.DebuggerAgent.prototype.stopProfiling = function(modules) {
-  RemoteDebuggerAgent.StopProfiling(modules);
-};
-
-
-/**
- * @param{number} scriptId
- * @return {string} Type of the context of the script with specified id.
- */
-devtools.DebuggerAgent.prototype.getScriptContextType = function(scriptId) {
-  return this.parsedScripts_[scriptId].getContextType();
-};
-
-
-/**
- * Removes specified breakpoint from the v8 debugger.
- * @param {number} breakpointId Id of the breakpoint in the v8 debugger.
- */
-devtools.DebuggerAgent.prototype.requestClearBreakpoint_ = function(
-    breakpointId) {
-  var cmd = new devtools.DebugCommand('clearbreakpoint', {
-    'breakpoint': breakpointId
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-};
-
-
-/**
- * Changes breakpoint parameters in the v8 debugger.
- * @param {number} breakpointId Id of the breakpoint in the v8 debugger.
- * @param {boolean} enabled Whether to enable the breakpoint.
- * @param {?string} condition New breakpoint condition.
- * @param {number} ignoreCount New ignore count for the breakpoint.
- */
-devtools.DebuggerAgent.prototype.requestChangeBreakpoint_ = function(
-    breakpointId, enabled, condition, ignoreCount) {
-  var cmd = new devtools.DebugCommand('changebreakpoint', {
-    'breakpoint': breakpointId,
-    'enabled': enabled,
-    'condition': condition,
-    'ignoreCount': ignoreCount
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-};
-
-
-/**
- * Sends 'backtrace' request to v8.
- */
-devtools.DebuggerAgent.prototype.requestBacktrace_ = function() {
-  var cmd = new devtools.DebugCommand('backtrace', {
-    'compactFormat':true
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-};
-
-
-/**
- * Sends command to v8 debugger.
- * @param {devtools.DebugCommand} cmd Command to execute.
- */
-devtools.DebuggerAgent.sendCommand_ = function(cmd) {
-  RemoteDebuggerCommandExecutor.DebuggerCommand(cmd.toJSONProtocol());
-};
-
-
-/**
- * Tells the v8 debugger to make the next execution step.
- * @param {string} action 'in', 'out' or 'next' action.
- */
-devtools.DebuggerAgent.prototype.stepCommand_ = function(action) {
-  this.clearExceptionMessage_();
-  var cmd = new devtools.DebugCommand('continue', {
-    'stepaction': action,
-    'stepcount': 1
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-};
-
-
-/**
- * Sends 'lookup' request to v8.
- * @param {number} handle Handle to the object to lookup.
- */
-devtools.DebuggerAgent.prototype.requestLookup_ = function(handles, callback) {
-  var cmd = new devtools.DebugCommand('lookup', {
-    'compactFormat':true,
-    'handles': handles
-  });
-  devtools.DebuggerAgent.sendCommand_(cmd);
-  this.requestSeqToCallback_[cmd.getSequenceNumber()] = callback;
-};
-
-
-/**
- * Sets debugger context id for scripts filtering.
- * @param {number} contextId Id of the inspected page global context.
- */
-devtools.DebuggerAgent.prototype.setContextId_ = function(contextId) {
-  this.contextId_ = contextId;
-
-  // If it's the first time context id is set request scripts list.
-  if (this.requestScriptsWhenContextIdSet_) {
-    this.requestScriptsWhenContextIdSet_ = false;
-    var cmd = new devtools.DebugCommand('scripts', {
-      'includeSource': false
-    });
-    devtools.DebuggerAgent.sendCommand_(cmd);
-    // Force v8 execution so that it gets to processing the requested command.
-    RemoteToolsAgent.ExecuteVoidJavaScript();
-
-    var debuggerAgent = this;
-    this.requestSeqToCallback_[cmd.getSequenceNumber()] = function(msg) {
-      // Handle the response iff the context id hasn't changed since the request
-      // was issued. Otherwise if the context id did change all up-to-date
-      // scripts will be pushed in after compile events and there is no need to
-      // handle the response.
-      if (contextId == debuggerAgent.contextId_) {
-        debuggerAgent.handleScriptsResponse_(msg);
-      }
-    };
-  }
-};
-
-
-/**
- * Handles output sent by v8 debugger. The output is either asynchronous event
- * or response to a previously sent request.  See protocol definitioun for more
- * details on the output format.
- * @param {string} output
- */
-devtools.DebuggerAgent.prototype.handleDebuggerOutput_ = function(output) {
-  var msg;
-  try {
-    msg = new devtools.DebuggerMessage(output);
-  } catch(e) {
-    debugPrint('Failed to handle debugger reponse:\n' + e);
-    throw e;
-  }
-
-  if (msg.getType() == 'event') {
-    if (msg.getEvent() == 'break') {
-      this.handleBreakEvent_(msg);
-    } else if (msg.getEvent() == 'exception') {
-      this.handleExceptionEvent_(msg);
-    } else if (msg.getEvent() == 'afterCompile') {
-      this.handleAfterCompileEvent_(msg);
-    }
-  } else if (msg.getType() == 'response') {
-    if (msg.getCommand() == 'scripts') {
-      this.invokeCallbackForResponse_(msg);
-    } else if (msg.getCommand() == 'setbreakpoint') {
-      this.handleSetBreakpointResponse_(msg);
-    } else if (msg.getCommand() == 'clearbreakpoint') {
-      this.handleClearBreakpointResponse_(msg);
-    } else if (msg.getCommand() == 'backtrace') {
-      this.handleBacktraceResponse_(msg);
-    } else if (msg.getCommand() == 'lookup') {
-      this.invokeCallbackForResponse_(msg);
-    } else if (msg.getCommand() == 'evaluate') {
-      this.invokeCallbackForResponse_(msg);
-    } else if (msg.getCommand() == 'scope') {
-      this.invokeCallbackForResponse_(msg);
-    }
-  }
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleBreakEvent_ = function(msg) {
-  // Force scrips panel to be shown first.
-  WebInspector.currentPanel = WebInspector.panels.scripts;
-
-  var body = msg.getBody();
-
-  var line = devtools.DebuggerAgent.v8ToWwebkitLineNumber_(body.sourceLine);
-  this.requestBacktrace_();
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleExceptionEvent_ = function(msg) {
-  // Force scrips panel to be shown first.
-  WebInspector.currentPanel = WebInspector.panels.scripts;
-
-  var body = msg.getBody();
-  // No script field in the body means that v8 failed to parse the script. We
-  // resume execution on parser errors automatically.
-  if (this.pauseOnExceptions_ && body.script) {
-    var line = devtools.DebuggerAgent.v8ToWwebkitLineNumber_(body.sourceLine);
-    this.createExceptionMessage_(body.script.name, line, body.exception.text);
-    this.requestBacktrace_();
-  } else {
-    this.resumeExecution();
-  }
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleScriptsResponse_ = function(msg) {
-  var scripts = msg.getBody();
-  for (var i = 0; i < scripts.length; i++) {
-    var script = scripts[i];
-
-    // Skip scripts from other tabs.
-    if (!this.isScriptFromInspectedContext_(script, msg)) {
-      continue;
-    }
-
-    // We may already have received the info in an afterCompile event.
-    if (script.id in this.parsedScripts_) {
-      continue;
-    }
-    this.addScriptInfo_(script, msg);
-  }
-};
-
-
-/**
- * @param {Object} script Json object representing script.
- * @param {devtools.DebuggerMessage} msg Debugger response.
- */
-devtools.DebuggerAgent.prototype.isScriptFromInspectedContext_ = function(
-    script, msg) {
-  if (!script.context) {
-    // Always ignore scripts from the utility context.
-    return false;
-  }
-  var context = msg.lookup(script.context.ref);
-  var scriptContextId = context.data;
-  if (!goog.isDef(scriptContextId)) {
-    return false; // Always ignore scripts from the utility context.
-  }
-  if (this.contextId_ === null) {
-    return true;
-  }
-  return (scriptContextId.value == this.contextId_);
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleSetBreakpointResponse_ = function(msg) {
-  var requestSeq = msg.getRequestSeq();
-  var breakpointInfo = this.requestNumberToBreakpointInfo_[requestSeq];
-  if (!breakpointInfo) {
-    // TODO(yurys): handle this case
-    return;
-  }
-  delete this.requestNumberToBreakpointInfo_[requestSeq];
-  if (!msg.isSuccess()) {
-    // TODO(yurys): handle this case
-    return;
-  }
-  var idInV8 = msg.getBody().breakpoint;
-  breakpointInfo.setV8Id(idInV8);
-
-  if (breakpointInfo.isRemoved()) {
-    this.requestClearBreakpoint_(idInV8);
-  }
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleAfterCompileEvent_ = function(msg) {
-  if (!this.contextId_) {
-    // Ignore scripts delta if main request has not been issued yet.
-    return;
-  }
-  var script = msg.getBody().script;
-
-  // Ignore scripts from other tabs.
-  if (!this.isScriptFromInspectedContext_(script, msg)) {
-    return;
-  }
-  this.addScriptInfo_(script, msg);
-};
-
-
-/**
- * Handles current profiler status.
- * @param {number} modules List of active (started) modules.
- */
-devtools.DebuggerAgent.prototype.didGetActiveProfilerModules_ = function(
-    modules) {
-  var profModules = devtools.DebuggerAgent.ProfilerModules;
-  var profModuleNone = profModules.PROFILER_MODULE_NONE;
-  if (modules != profModuleNone &&
-      this.activeProfilerModules_ == profModuleNone) {
-    // Start to query log data.
-    RemoteDebuggerAgent.GetNextLogLines();
-  }
-  this.activeProfilerModules_ = modules;
-  // Update buttons.
-  WebInspector.setRecordingProfile(modules & profModules.PROFILER_MODULE_CPU);
-  if (modules != profModuleNone) {
-    // Monitor profiler state. It can stop itself on buffer fill-up.
-    setTimeout(
-        function() { RemoteDebuggerAgent.GetActiveProfilerModules(); }, 1000);
-  }
-};
-
-
-/**
- * Handles a portion of a profiler log retrieved by GetNextLogLines call.
- * @param {string} log A portion of profiler log.
- */
-devtools.DebuggerAgent.prototype.didGetNextLogLines_ = function(log) {
-  if (log.length > 0) {
-    this.profilerProcessor_.processLogChunk(log);
-  } else if (this.activeProfilerModules_ ==
-      devtools.DebuggerAgent.ProfilerModules.PROFILER_MODULE_NONE) {
-    // No new data and profiling is stopped---suspend log reading.
-    return;
-  }
-  setTimeout(function() { RemoteDebuggerAgent.GetNextLogLines(); }, 500);
-};
-
-
-/**
- * Adds the script info to the local cache. This method assumes that the script
- * is not in the cache yet.
- * @param {Object} script Script json object from the debugger message.
- * @param {devtools.DebuggerMessage} msg Debugger message containing the script
- *     data.
- */
-devtools.DebuggerAgent.prototype.addScriptInfo_ = function(script, msg) {
-  var context = msg.lookup(script.context.ref);
-  var contextType = context.data.type;
-  this.parsedScripts_[script.id] = new devtools.ScriptInfo(
-      script.id, script.name, script.lineOffset, contextType);
-  if (WebInspector.panels.scripts.element.parentElement) {
-    // Only report script as parsed after scripts panel has been shown.
-    WebInspector.parsedScriptSource(
-        script.id, script.name, script.source, script.lineOffset);
-  }
-};
-
-
-/**
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleClearBreakpointResponse_ = function(
-    msg) {
-  // Do nothing.
-};
-
-
-/**
- * Handles response to 'backtrace' command.
- * @param {devtools.DebuggerMessage} msg
- */
-devtools.DebuggerAgent.prototype.handleBacktraceResponse_ = function(msg) {
-  var frames = msg.getBody().frames;
-  this.callFrames_ = [];
-  for (var i = 0; i <  frames.length; ++i) {
-    this.callFrames_.push(this.formatCallFrame_(frames[i]));
-  }
-  WebInspector.pausedScript(this.callFrames_);
-  this.showPendingExceptionMessage_();
-  DevToolsHost.activateWindow();
-};
-
-
-/**
- * Evaluates code on given callframe.
- */
-devtools.DebuggerAgent.prototype.evaluateInCallFrame = function(
-    callFrameId, code, callback) {
-  var callFrame = this.callFrames_[callFrameId];
-  callFrame.evaluate_(code, callback);
-};
-
-
-/**
- * Handles response to a command by invoking its callback (if any).
- * @param {devtools.DebuggerMessage} msg
- * @return {boolean} Whether a callback for the given message was found and
- *     excuted.
- */
-devtools.DebuggerAgent.prototype.invokeCallbackForResponse_ = function(msg) {
-  var callback = this.requestSeqToCallback_[msg.getRequestSeq()];
-  if (!callback) {
-    // It may happend if reset was called.
-    return false;
-  }
-  delete this.requestSeqToCallback_[msg.getRequestSeq()];
-  callback(msg);
-  return true;
-};
-
-
-/**
- * @param {Object} stackFrame Frame json object from 'backtrace' response.
- * @return {!devtools.CallFrame} Object containing information related to the
- *     call frame in the format expected by ScriptsPanel and its panes.
- */
-devtools.DebuggerAgent.prototype.formatCallFrame_ = function(stackFrame) {
-  var func = stackFrame.func;
-  var sourceId = func.scriptId;
-
-  // Add service script if it does not exist.
-  var existingScript = this.parsedScripts_[sourceId];
-  if (!existingScript) {
-    this.parsedScripts_[sourceId] = new devtools.ScriptInfo(
-        sourceId, null /* name */, 0 /* line */, 'unknown' /* type */,
-        true /* unresolved */);
-    WebInspector.parsedScriptSource(sourceId, null, null, 0);
-  }
-
-  var funcName = func.name || func.inferredName || '(anonymous function)';
-  var line = devtools.DebuggerAgent.v8ToWwebkitLineNumber_(stackFrame.line);
-
-  // Add basic scope chain info with scope variables.
-  var scopeChain = [];
-  var ScopeType = devtools.DebuggerAgent.ScopeType;
-  for (var i = 0; i < stackFrame.scopes.length; i++) {
-    var scope = stackFrame.scopes[i];
-    scope.frameNumber = stackFrame.index;
-    var scopeObjectProxy = new WebInspector.ObjectProxy(scope, [], 0, '', true);
-    scopeObjectProxy.isScope = true;
-    switch(scope.type) {
-      case ScopeType.Global:
-        scopeObjectProxy.isDocument = true;
-        break;
-      case ScopeType.Local:
-        scopeObjectProxy.isLocal = true;
-        scopeObjectProxy.thisObject =
-            devtools.DebuggerAgent.formatObjectProxy_(stackFrame.receiver);
-        break;
-      case ScopeType.With:
-      // Catch scope is treated as a regular with scope by WebKit so we
-      // also treat it this way.
-      case ScopeType.Catch:
-        scopeObjectProxy.isWithBlock = true;
-        break;
-      case ScopeType.Closure:
-        scopeObjectProxy.isClosure = true;
-        break;
-    }
-    scopeChain.push(scopeObjectProxy);
-  }
-  return new devtools.CallFrame(stackFrame.index, 'function', funcName,
-      sourceId, line, scopeChain);
-};
-
-
-/**
- * Collects properties for an object from the debugger response.
- * @param {Object} object An object from the debugger protocol response.
- * @param {Array.<WebInspector.ObjectPropertyProxy>} result An array to put the
- *     properties into.
- * @param {boolean} noIntrinsic Whether intrinsic properties should be
- *     included.
- */
-devtools.DebuggerAgent.formatObjectProperties_ = function(object, result,
-                                                          noIntrinsic) {
-  devtools.DebuggerAgent.propertiesToProxies_(object.properties, result);
-  if (noIntrinsic) {
-    return;
-  }
-
-  result.push(new WebInspector.ObjectPropertyProxy('__proto__',
-      devtools.DebuggerAgent.formatObjectProxy_(object.protoObject)));
-  result.push(new WebInspector.ObjectPropertyProxy('constructor',
-      devtools.DebuggerAgent.formatObjectProxy_(object.constructorFunction)));
-  // Don't add 'prototype' property since it is one of the regualar properties.
-};
-
-
-/**
- * For each property in 'properties' creates its proxy representative.
- * @param {Array.<Object>} properties Receiver properties or locals array from
- *     'backtrace' response.
- * @param {Array.<WebInspector.ObjectPropertyProxy>} Results holder.
- */
-devtools.DebuggerAgent.propertiesToProxies_ = function(properties, result) {
-  var map = {};
-  for (var i = 0; i < properties.length; ++i) {
-    var property = properties[i];
-    var name = String(property.name);
-    if (name in map) {
-      continue;
-    }
-    map[name] = true;
-    var value = devtools.DebuggerAgent.formatObjectProxy_(property.value);
-    var propertyProxy = new WebInspector.ObjectPropertyProxy(name, value);
-    result.push(propertyProxy);
-  }
-};
-
-
-/**
- * @param {Object} v An object reference from the debugger response.
- * @return {*} The value representation expected by ScriptsPanel.
- */
-devtools.DebuggerAgent.formatObjectProxy_ = function(v) {
-  var description;
-  var hasChildren = false;
-  if (v.type == 'object') {
-    description = v.className;
-    hasChildren = true;
-  } else if (v.type == 'function') {
-    if (v.source) {
-      description = v.source;
-    } else {
-      description = 'function ' + v.name + '()';
-    }
-    hasChildren = true;
-  } else if (v.type == 'undefined') {
-    description = 'undefined';
-  } else if (v.type == 'null') {
-    description = 'null';
-  } else if (goog.isDef(v.value)) {
-    // Check for undefined and null types before checking the value, otherwise
-    // null/undefined may have blank value.
-    description = v.value;
-  } else {
-    description = '<unresolved ref: ' + v.ref + ', type: ' + v.type + '>';
-  }
-  var proxy = new WebInspector.ObjectProxy(v, [], 0, description, hasChildren);
-  proxy.type = v.type;
-  proxy.isV8Ref = true;
-  return proxy;
-};
-
-
-/**
- * Converts line number from Web Inspector UI(1-based) to v8(0-based).
- * @param {number} line Resource line number in Web Inspector UI.
- * @return {number} The line number in v8.
- */
-devtools.DebuggerAgent.webkitToV8LineNumber_ = function(line) {
-  return line - 1;
-};
-
-
-/**
- * Converts line number from v8(0-based) to Web Inspector UI(1-based).
- * @param {number} line Resource line number in v8.
- * @return {number} The line number in Web Inspector.
- */
-devtools.DebuggerAgent.v8ToWwebkitLineNumber_ = function(line) {
-  return line + 1;
-};
-
-
-/**
- * @param {number} scriptId Id of the script.
- * @param {?string} url Script resource URL if any.
- * @param {number} lineOffset First line 0-based offset in the containing
- *     document.
- * @param {string} contextType Type of the script's context:
- *     "page" - regular script from html page
- *     "injected" - extension content script
- * @param {bool} opt_isUnresolved If true, script will not be resolved.
- * @constructor
- */
-devtools.ScriptInfo = function(
-    scriptId, url, lineOffset, contextType, opt_isUnresolved) {
-  this.scriptId_ = scriptId;
-  this.lineOffset_ = lineOffset;
-  this.contextType_ = contextType;
-  this.url_ = url;
-  this.isUnresolved_ = opt_isUnresolved;
-
-  this.lineToBreakpointInfo_ = {};
-};
-
-
-/**
- * @return {number}
- */
-devtools.ScriptInfo.prototype.getLineOffset = function() {
-  return this.lineOffset_;
-};
-
-
-/**
- * @return {string}
- */
-devtools.ScriptInfo.prototype.getContextType = function() {
-  return this.contextType_;
-};
-
-
-/**
- * @return {?string}
- */
-devtools.ScriptInfo.prototype.getUrl = function() {
-  return this.url_;
-};
-
-
-/**
- * @return {?bool}
- */
-devtools.ScriptInfo.prototype.isUnresolved = function() {
-  return this.isUnresolved_;
-};
-
-
-/**
- * @param {number} line 0-based line number in the script.
- * @return {?devtools.BreakpointInfo} Information on a breakpoint at the
- *     specified line in the script or undefined if there is no breakpoint at
- *     that line.
- */
-devtools.ScriptInfo.prototype.getBreakpointInfo = function(line) {
-  return this.lineToBreakpointInfo_[line];
-};
-
-
-/**
- * Adds breakpoint info to the script.
- * @param {devtools.BreakpointInfo} breakpoint
- */
-devtools.ScriptInfo.prototype.addBreakpointInfo = function(breakpoint) {
-  this.lineToBreakpointInfo_[breakpoint.getLine()] = breakpoint;
-};
-
-
-/**
- * @param {devtools.BreakpointInfo} breakpoint Breakpoint info to be removed.
- */
-devtools.ScriptInfo.prototype.removeBreakpointInfo = function(breakpoint) {
-  var line = breakpoint.getLine();
-  delete this.lineToBreakpointInfo_[line];
-};
-
-
-
-/**
- * @param {number} line Breakpoint 0-based line number in the containing script.
- * @constructor
- */
-devtools.BreakpointInfo = function(line) {
-  this.line_ = line;
-  this.v8id_ = -1;
-  this.removed_ = false;
-};
-
-
-/**
- * @return {number}
- */
-devtools.BreakpointInfo.prototype.getLine = function(n) {
-  return this.line_;
-};
-
-
-/**
- * @return {number} Unique identifier of this breakpoint in the v8 debugger.
- */
-devtools.BreakpointInfo.prototype.getV8Id = function(n) {
-  return this.v8id_;
-};
-
-
-/**
- * Sets id of this breakpoint in the v8 debugger.
- * @param {number} id
- */
-devtools.BreakpointInfo.prototype.setV8Id = function(id) {
-  this.v8id_ = id;
-};
-
-
-/**
- * Marks this breakpoint as removed from the  front-end.
- */
-devtools.BreakpointInfo.prototype.markAsRemoved = function() {
-  this.removed_ = true;
-};
-
-
-/**
- * @return {boolean} Whether this breakpoint has been removed from the
- *     front-end.
- */
-devtools.BreakpointInfo.prototype.isRemoved = function() {
-  return this.removed_;
-};
-
-
-/**
- * Call stack frame data.
- * @param {string} id CallFrame id.
- * @param {string} type CallFrame type.
- * @param {string} functionName CallFrame type.
- * @param {string} sourceID Source id.
- * @param {number} line Source line.
- * @param {Array.<Object>} scopeChain Array of scoped objects.
- * @construnctor
- */
-devtools.CallFrame = function(id, type, functionName, sourceID, line,
-    scopeChain) {
-  this.id = id;
-  this.type = type;
-  this.functionName = functionName;
-  this.sourceID = sourceID;
-  this.line = line;
-  this.scopeChain = scopeChain;
-};
-
-
-/**
- * This method issues asynchronous evaluate request, reports result to the
- * callback.
- * @param {string} expression An expression to be evaluated in the context of
- *     this call frame.
- * @param {function(Object):undefined} callback Callback to report result to.
- */
-devtools.CallFrame.prototype.evaluate_ = function(expression, callback) {
-  devtools.tools.getDebuggerAgent().requestEvaluate({
-      'expression': expression,
-      'frame': this.id,
-      'global': false,
-      'disable_break': false,
-      'compactFormat': true
-    },
-    function(response) {
-      var result = {};
-      if (response.isSuccess()) {
-        result.value = devtools.DebuggerAgent.formatObjectProxy_(
-            response.getBody());
-      } else {
-        result.value = response.getMessage();
-        result.isException = true;
-      }
-      callback(result);
-    });
-};
-
-
-/**
- * JSON based commands sent to v8 debugger.
- * @param {string} command Name of the command to execute.
- * @param {Object} opt_arguments Command-specific arguments map.
- * @constructor
- */
-devtools.DebugCommand = function(command, opt_arguments) {
-  this.command_ = command;
-  this.type_ = 'request';
-  this.seq_ = ++devtools.DebugCommand.nextSeq_;
-  if (opt_arguments) {
-    this.arguments_ = opt_arguments;
-  }
-};
-
-
-/**
- * Next unique number to be used as debugger request sequence number.
- * @type {number}
- */
-devtools.DebugCommand.nextSeq_ = 1;
-
-
-/**
- * @return {number}
- */
-devtools.DebugCommand.prototype.getSequenceNumber = function() {
-  return this.seq_;
-};
-
-
-/**
- * @return {string}
- */
-devtools.DebugCommand.prototype.toJSONProtocol = function() {
-  var json = {
-    'seq': this.seq_,
-    'type': this.type_,
-    'command': this.command_
-  }
-  if (this.arguments_) {
-    json.arguments = this.arguments_;
-  }
-  return JSON.stringify(json);
-};
-
-
-/**
- * JSON messages sent from v8 debugger. See protocol definition for more
- * details: http://code.google.com/p/v8/wiki/DebuggerProtocol
- * @param {string} msg Raw protocol packet as JSON string.
- * @constructor
- */
-devtools.DebuggerMessage = function(msg) {
-  this.packet_ = JSON.parse(msg);
-  this.refs_ = [];
-  if (this.packet_.refs) {
-    for (var i = 0; i < this.packet_.refs.length; i++) {
-      this.refs_[this.packet_.refs[i].handle] = this.packet_.refs[i];
-    }
-  }
-};
-
-
-/**
- * @return {string} The packet type.
- */
-devtools.DebuggerMessage.prototype.getType = function() {
-  return this.packet_.type;
-};
-
-
-/**
- * @return {?string} The packet event if the message is an event.
- */
-devtools.DebuggerMessage.prototype.getEvent = function() {
-  return this.packet_.event;
-};
-
-
-/**
- * @return {?string} The packet command if the message is a response to a
- *     command.
- */
-devtools.DebuggerMessage.prototype.getCommand = function() {
-  return this.packet_.command;
-};
-
-
-/**
- * @return {number} The packet request sequence.
- */
-devtools.DebuggerMessage.prototype.getRequestSeq = function() {
-  return this.packet_.request_seq;
-};
-
-
-/**
- * @return {number} Whether the v8 is running after processing the request.
- */
-devtools.DebuggerMessage.prototype.isRunning = function() {
-  return this.packet_.running ? true : false;
-};
-
-
-/**
- * @return {boolean} Whether the request succeeded.
- */
-devtools.DebuggerMessage.prototype.isSuccess = function() {
-  return this.packet_.success ? true : false;
-};
-
-
-/**
- * @return {string}
- */
-devtools.DebuggerMessage.prototype.getMessage = function() {
-  return this.packet_.message;
-};
-
-
-/**
- * @return {Object} Parsed message body json.
- */
-devtools.DebuggerMessage.prototype.getBody = function() {
-  return this.packet_.body;
-};
-
-
-/**
- * @param {number} handle Object handle.
- * @return {?Object} Returns the object with the handle if it was sent in this
- *    message(some objects referenced by handles may be missing in the message).
- */
-devtools.DebuggerMessage.prototype.lookup = function(handle) {
-  return this.refs_[handle];
-};