DevTools: Show asynchronous call stacks on frontend.

Source/devtools/front_end/SourcesPanel.js

Index: Source/devtools/front_end/SourcesPanel.js
diff --git a/Source/devtools/front_end/SourcesPanel.js b/Source/devtools/front_end/SourcesPanel.js
index db3879fe30475bb159af41a484a88061f5c6589e..865518dd89cbef875d1d277373ef2b81c16f8012 100644
--- a/Source/devtools/front_end/SourcesPanel.js
+++ b/Source/devtools/front_end/SourcesPanel.js
@@ -301,7 +301,7 @@ WebInspector.SourcesPanel.prototype = {
 
         this._updateDebuggerButtons();
 
-        this.sidebarPanes.callstack.update(details.callFrames);
+        this.sidebarPanes.callstack.update(details.callFrames, details.asyncStackTrace);
 
         if (details.reason === WebInspector.DebuggerModel.BreakReason.DOM) {
             WebInspector.domBreakpointsSidebarPane.highlightBreakpoint(details.auxData);
@@ -734,7 +734,7 @@ WebInspector.SourcesPanel.prototype = {
 
     _clearInterface: function()
     {
-        this.sidebarPanes.callstack.update(null);
+        this.sidebarPanes.callstack.update(null, null);
         this.sidebarPanes.scopechain.update(null);
         this.sidebarPanes.jsBreakpoints.clearBreakpointHighlight();
         WebInspector.domBreakpointsSidebarPane.clearBreakpointHighlight();