DevTools: Async stacks out of experiments.

Source/devtools/front_end/CallStackSidebarPane.js

Index: Source/devtools/front_end/CallStackSidebarPane.js
diff --git a/Source/devtools/front_end/CallStackSidebarPane.js b/Source/devtools/front_end/CallStackSidebarPane.js
index 59ebe18f82606b74853c4351c1c493f1827dc21b..8b1d2ca96dc85065eddb377470f6e286515c894e 100644
--- a/Source/devtools/front_end/CallStackSidebarPane.js
+++ b/Source/devtools/front_end/CallStackSidebarPane.js
@@ -33,12 +33,10 @@ WebInspector.CallStackSidebarPane = function()
     this.bodyElement.addEventListener("keydown", this._keyDown.bind(this), true);
     this.bodyElement.tabIndex = 0;
 
-    if (WebInspector.experimentsSettings.asyncStackTraces.isEnabled()) {
-        var asyncCheckbox = this.titleElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Async"), WebInspector.settings.enableAsyncStackTraces, true, undefined, WebInspector.UIString("Capture async stack traces")));
-        asyncCheckbox.classList.add("scripts-callstack-async");
-        asyncCheckbox.addEventListener("click", consumeEvent, false);
-        WebInspector.settings.enableAsyncStackTraces.addChangeListener(this._asyncStackTracesStateChanged, this);
-    }
+    var asyncCheckbox = this.titleElement.appendChild(WebInspector.SettingsUI.createSettingCheckbox(WebInspector.UIString("Async"), WebInspector.settings.enableAsyncStackTraces, true, undefined, WebInspector.UIString("Capture async stack traces")));
+    asyncCheckbox.classList.add("scripts-callstack-async");
+    asyncCheckbox.addEventListener("click", consumeEvent, false);
+    WebInspector.settings.enableAsyncStackTraces.addChangeListener(this._asyncStackTracesStateChanged, this);
 }
 
 WebInspector.CallStackSidebarPane.Events = {