Timeline addTraceProvider API

third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js

Index: third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
diff --git a/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js b/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
index 63a911ee61f34234a7b5a5bea3198437b5bf6f0e..cfa549743db8f7b4ac202e0db86d9e329326b790 100644
--- a/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
+++ b/third_party/WebKit/Source/devtools/front_end/timeline/TimelinePanel.js
@@ -50,6 +50,8 @@ WebInspector.TimelinePanel = function()
     this._millisecondsToRecordAfterLoadEvent = 3000;
     this._toggleRecordAction = /** @type {!WebInspector.Action }*/ (WebInspector.actionRegistry.action("timeline.toggle-recording"));
 
+    this._extensionTraceProviders = WebInspector.extensionServer.traceProviders();
+
     /** @type {!Array<!WebInspector.TimelineModel.Filter>} */
     this._filters = [];
     if (!Runtime.experiments.isEnabled("timelineShowAllEvents")) {
@@ -390,6 +392,13 @@ WebInspector.TimelinePanel.prototype = {
                 WebInspector.UIString("Memory"), this._captureMemorySetting, WebInspector.UIString("Capture memory information on every timeline event.")));
             this._panelToolbar.appendToolbarItem(this._createSettingCheckbox(
                 WebInspector.UIString("Paint"), this._captureLayersAndPicturesSetting, WebInspector.UIString("Capture graphics layer positions and rasterization draw calls. (Has large performance overhead)")));
+
+            for (var provider of this._extensionTraceProviders) {
+                this._panelToolbar.appendToolbarItem(this._createSettingCheckbox(

[caseq, 2016/07/11 18:58:38]

let's also have some handling for trace providers that are registered after the
Timeline panel is shown.

+                    WebInspector.UIString(provider.categoryName),
+                    WebInspector.settings.createSetting(provider.categoryName, false),
+                    WebInspector.UIString(provider.categoryTooltip)));
+            }
         } else {
             this._panelToolbar.appendToolbarItem(screenshotCheckbox);
         }
@@ -772,7 +781,7 @@ WebInspector.TimelinePanel.prototype = {
 
         if (this._statusPane)
             this._statusPane.updateStatus(WebInspector.UIString("Processing timeline\u2026"));
-        this._model.setEvents(this._tracingModel, loadedFromFile);
+        this._model.setEvents(this._tracingModel, this._extensionTraceProviders, loadedFromFile);
         this._frameModel.reset();
         this._frameModel.addTraceEvents(this._model.target(), this._model.inspectedTargetEvents(), this._model.sessionId() || "");