DevTools: move tracing based Timeline out of experiment

Source/devtools/front_end/timeline/TimelinePanel.js

Index: Source/devtools/front_end/timeline/TimelinePanel.js
diff --git a/Source/devtools/front_end/timeline/TimelinePanel.js b/Source/devtools/front_end/timeline/TimelinePanel.js
index 9afcaa8c0dc5957b881c1e55dbd990f4d6461351..3b62eea783dba7f20498c5dc51e34279a24c7921 100644
--- a/Source/devtools/front_end/timeline/TimelinePanel.js
+++ b/Source/devtools/front_end/timeline/TimelinePanel.js
@@ -47,18 +47,12 @@ WebInspector.TimelinePanel = function()
     this._windowStartTime = 0;
     this._windowEndTime = Infinity;
 
-    // Create model.
-    if (WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled()) {
-        this._tracingModel = new WebInspector.TracingModel();
-        this._tracingModel.addEventListener(WebInspector.TracingModel.Events.BufferUsage, this._onTracingBufferUsage, this);
-
-        this._uiUtils = new WebInspector.TracingTimelineUIUtils();
-        this._tracingTimelineModel = new WebInspector.TracingTimelineModel(this._tracingModel, this._uiUtils.hiddenRecordsFilter());
-        this._model = this._tracingTimelineModel;
-    } else {
-        this._uiUtils = new WebInspector.TimelineUIUtilsImpl();
-        this._model = new WebInspector.TimelineModelImpl();
-    }
+    this._tracingModel = new WebInspector.TracingModel();
+    this._tracingModel.addEventListener(WebInspector.TracingModel.Events.BufferUsage, this._onTracingBufferUsage, this);
+
+    this._uiUtils = new WebInspector.TracingTimelineUIUtils();
+    this._tracingTimelineModel = new WebInspector.TracingTimelineModel(this._tracingModel, this._uiUtils.hiddenRecordsFilter());
+    this._model = this._tracingTimelineModel;
 
     this._model.addEventListener(WebInspector.TimelineModel.Events.RecordingStarted, this._onRecordingStarted, this);
     this._model.addEventListener(WebInspector.TimelineModel.Events.RecordingStopped, this._onRecordingStopped, this);
@@ -338,13 +332,11 @@ WebInspector.TimelinePanel.prototype = {
         this._statusBarButtons.push(framesToggleButton);
         panelStatusBarElement.appendChild(framesToggleButton.element);
 
-        if (WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled()) {
-            var flameChartToggleButton = new WebInspector.StatusBarButton(WebInspector.UIString("Tracing mode"), "timeline-flame-chart-status-bar-item");
-            flameChartToggleButton.toggled = this._flameChartEnabledSetting.get();
-            flameChartToggleButton.addEventListener("click", this._flameChartEnabledChanged.bind(this, flameChartToggleButton));
-            this._statusBarButtons.push(flameChartToggleButton);
-            panelStatusBarElement.appendChild(flameChartToggleButton.element);
-        }
+        var flameChartToggleButton = new WebInspector.StatusBarButton(WebInspector.UIString("Tracing mode"), "timeline-flame-chart-status-bar-item");
+        flameChartToggleButton.toggled = this._flameChartEnabledSetting.get();
+        flameChartToggleButton.addEventListener("click", this._flameChartEnabledChanged.bind(this, flameChartToggleButton));
+        this._statusBarButtons.push(flameChartToggleButton);
+        panelStatusBarElement.appendChild(flameChartToggleButton.element);
 
         this._captureStacksSetting = WebInspector.settings.createSetting("timelineCaptureStacks", true);
         panelStatusBarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Stacks"),
@@ -363,8 +355,7 @@ WebInspector.TimelinePanel.prototype = {
                                                                           WebInspector.UIString("Capture power information")));
             this._capturePowerSetting.addChangeListener(this._onModeChanged, this);
         }
-        if (WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled() &&
-            WebInspector.experimentsSettings.paintProfiler.isEnabled()) {
+        if (WebInspector.experimentsSettings.paintProfiler.isEnabled()) {
             this._captureLayersAndPicturesSetting = WebInspector.settings.createSetting("timelineCaptureLayersAndPictures", false);
             panelStatusBarElement.appendChild(this._createSettingCheckbox(WebInspector.UIString("Paint"),
                                                                           this._captureLayersAndPicturesSetting,
@@ -377,11 +368,6 @@ WebInspector.TimelinePanel.prototype = {
         this._filtersContainer.appendChild(this._filterBar.filtersElement());
         this._filterBar.addEventListener(WebInspector.FilterBar.Events.FiltersToggled, this._onFiltersToggled, this);
         this._filterBar.setName("timelinePanel");
-        if (!WebInspector.experimentsSettings.timelineOnTraceEvents.isEnabled()) {
-            var targetsComboBox = new WebInspector.StatusBarComboBox(null);
-            panelStatusBarElement.appendChild(targetsComboBox.element);
-            new WebInspector.TargetsComboBoxController(targetsComboBox.selectElement(), targetsComboBox.element);
-        }
     },
 
     /**