Allow configuring CPU profiler sampling interval

Source/devtools/front_end/ProfilesPanel.js

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 417 matching lines @@
     }
 
     this._profilesWereRequested = false;
     this._reset();
 
     this._createFileSelectorElement();
     this.element.addEventListener("contextmenu", this._handleContextMenuEvent.bind(this), true);
     this._registerShortcuts();
 
     WebInspector.ContextMenu.registerProvider(this);
+
+    this._configureCpuProfilerSamplingInterval();
+    WebInspector.settings.highResolutionCpuProfiling.addChangeListener(this._configureCpuProfilerSamplingInterval, this);
 }
 
 WebInspector.ProfilesPanel.prototype = {
     _createFileSelectorElement: function()
     {
         if (this._fileSelectorElement)
             this.element.removeChild(this._fileSelectorElement);
         this._fileSelectorElement = WebInspector.createFileSelectorElement(this._loadFromFile.bind(this));
         this.element.appendChild(this._fileSelectorElement);
     },
@@ skipping 17 matching lines @@
                 return type;
         }
         return null;
     },
 
     _registerShortcuts: function()
     {
         this.registerShortcuts(WebInspector.ProfilesPanelDescriptor.ShortcutKeys.StartStopRecording, this.toggleRecordButton.bind(this));
     },
 
+    _configureCpuProfilerSamplingInterval: function()
+    {
+        var intervalUs = WebInspector.settings.highResolutionCpuProfiling.get() ? 100 : 1000;
+        ProfilerAgent.setSamplingInterval(intervalUs, didChangeInterval.bind(this));
+        function didChangeInterval(error)
+        {
+            if (error)
+                WebInspector.showErrorMessage(error)
+        }
+    },
+
     /**
      * @param {!File} file
      */
     _loadFromFile: function(file)
     {
         this._createFileSelectorElement();
 
         var profileType = this._findProfileTypeByExtension(file.name);
         if (!profileType) {
             var extensions = [];
@@ skipping 911 matching lines @@
 importScript("HeapSnapshotGridNodes.js");
 importScript("HeapSnapshotLoader.js");
 importScript("HeapSnapshotProxy.js");
 importScript("HeapSnapshotView.js");
 importScript("HeapSnapshotWorkerDispatcher.js");
 importScript("JSHeapSnapshot.js");
 importScript("ProfileLauncherView.js");
 importScript("TopDownProfileDataGridTree.js");
 importScript("CanvasProfileView.js");
 importScript("CanvasReplayStateView.js");