DevTools: switch Timeline frontend into buffered mode and remove the corresponding experiment.

Source/devtools/front_end/sdk/TimelineManager.js

Index: Source/devtools/front_end/sdk/TimelineManager.js
diff --git a/Source/devtools/front_end/sdk/TimelineManager.js b/Source/devtools/front_end/sdk/TimelineManager.js
index 28d272e619001eaab24e7d667f62825822ac8263..5f216d77fa6c1586eabc1f782be84d278307986d 100644
--- a/Source/devtools/front_end/sdk/TimelineManager.js
+++ b/Source/devtools/front_end/sdk/TimelineManager.js
@@ -60,13 +60,12 @@ WebInspector.TimelineManager.prototype = {
 
     /**
      * @param {number=} maxCallStackDepth
-     * @param {boolean=} bufferEvents
      * @param {string=} liveEvents
      * @param {boolean=} includeCounters
      * @param {boolean=} includeGPUEvents
      * @param {function(?Protocol.Error)=} callback
      */
-    start: function(maxCallStackDepth, bufferEvents, liveEvents, includeCounters, includeGPUEvents, callback)
+    start: function(maxCallStackDepth, liveEvents, includeCounters, includeGPUEvents, callback)
     {
         this._enablementCount++;
         this.target().profilingLock.acquire();
@@ -76,7 +75,7 @@ WebInspector.TimelineManager.prototype = {
             ProfilerAgent.start();
         }
         if (this._enablementCount === 1)
-            TimelineAgent.start(maxCallStackDepth, bufferEvents, liveEvents, includeCounters, includeGPUEvents, callback);
+            TimelineAgent.start(maxCallStackDepth, liveEvents, includeCounters, includeGPUEvents, callback);
         else if (callback)
             callback(null);
     },
@@ -101,7 +100,7 @@ WebInspector.TimelineManager.prototype = {
             this._jsProfilerStarted = false;
         }
         if (!this._enablementCount)
-            TimelineAgent.stop(callbackBarrier.createCallback(this._processBufferedEvents.bind(this, timelineCallback)));
+            TimelineAgent.stop(callbackBarrier.createCallback(timelineCallback));
 
         callbackBarrier.callWhenDone(allDoneCallback.bind(this));
 
@@ -134,18 +133,14 @@ WebInspector.TimelineManager.prototype = {
     },
 
     /**
-     * @param {function(?Protocol.Error)|undefined} callback
-     * @param {?Protocol.Error} error
      * @param {!Array.<!TimelineAgent.TimelineEvent>=} events
      */
-    _processBufferedEvents: function(callback, error, events)
+    _processBufferedEvents: function(events)
     {
         if (events) {
             for (var i = 0; i < events.length; ++i)
                 this._dispatcher.eventRecorded(events[i]);
         }
-        if (callback)
-            callback(error);
     },
 
     _configureCpuProfilerSamplingInterval: function()
@@ -208,11 +203,13 @@ WebInspector.TimelineDispatcher.prototype = {
 
     /**
      * @param {boolean=} consoleTimeline
+     * @param {!Array.<!TimelineAgent.TimelineEvent>=} events
      */
-    stopped: function(consoleTimeline)
+    stopped: function(consoleTimeline, events)
     {
         this._started = false;
         this._manager.dispatchEventToListeners(WebInspector.TimelineManager.EventTypes.TimelineStopped, consoleTimeline);
+        this._manager._processBufferedEvents(events);
     },
 
     /**