DevTools [Canvas Profile] Fix CanvasProfile control button issue

Source/devtools/front_end/CanvasProfileView.js

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 788 matching lines @@
         var option = this._frameSelector.selectedOption();
         return option ? option.value : undefined;
     },
 
     _dispatchViewUpdatedEvent: function()
     {
         this._frameSelector.element.enableStyleClass("hidden", this._frameSelector.size() <= 1);
         this.dispatchEventToListeners(WebInspector.ProfileType.Events.ViewUpdated);
     },
 
+    /**
+     * @override
+     * @return {boolean}
+     */
+    isInstantProfile: function()
+    {
+        return this._isSingleFrameMode();
+    },
+
     __proto__: WebInspector.ProfileType.prototype
 }
 
 /**
  * @constructor
  * @implements {CanvasAgent.Dispatcher}
  * @param {WebInspector.CanvasProfileType} profileType
  */
 WebInspector.CanvasDispatcher = function(profileType)
 {
@@ skipping 120 matching lines @@
                 return;
             this._alive = traceLog.alive;
             this._traceLogSize = traceLog.totalAvailableCalls;
             this._updateCapturingStatus();
         }
         CanvasAgent.getTraceLog(this._traceLogId, 0, 0, didReceiveTraceLog.bind(this));
     },
 
     __proto__: WebInspector.ProfileHeader.prototype
 }