[DevTools] increase AsyncCallStackDepth to 8

third_party/WebKit/Source/devtools/front_end/sdk/DebuggerModel.js

 /*
  * Copyright (C) 2010 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 147 matching lines @@
       state = SDK.DebuggerModel.PauseOnExceptionsState.DontPauseOnExceptions;
     else if (Common.moduleSetting('pauseOnCaughtException').get())
       state = SDK.DebuggerModel.PauseOnExceptionsState.PauseOnAllExceptions;
     else
       state = SDK.DebuggerModel.PauseOnExceptionsState.PauseOnUncaughtExceptions;
 
     this._agent.setPauseOnExceptions(state);
   }
 
   asyncStackTracesStateChanged() {
-    const maxAsyncStackChainDepth = 4;
+    const maxAsyncStackChainDepth = 8;
     var enabled = Common.moduleSetting('enableAsyncStackTraces').get() && this._debuggerEnabled;
     this._agent.setAsyncCallStackDepth(enabled ? maxAsyncStackChainDepth : 0);
   }
 
   stepInto() {
     this._agent.stepInto();
   }
 
   stepOver() {
     this._agent.stepOver();
@@ skipping 1178 matching lines @@
         stack.callFrames.shift();
       if (previous && !stack.callFrames.length)
         previous.parent = stack.parent;
       else
         previous = stack;
       stack = stack.parent;
     }
     return asyncStackTrace;
   }
 };