[DevTools] Don't load sourcemap for blackboxed scripts

third_party/WebKit/Source/devtools/front_end/bindings/BlackboxManager.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @constructor
  * @param {!WebInspector.DebuggerWorkspaceBinding} debuggerWorkspaceBinding
  * @param {!WebInspector.NetworkMapping} networkMapping
  */
 WebInspector.BlackboxManager = function(debuggerWorkspaceBinding, networkMapping)
@@ skipping 31 matching lines @@
         WebInspector.moduleSetting("skipStackFramesPattern").removeChangeListener(listener, thisObject);
     },
 
     /**
      * @param {!WebInspector.DebuggerModel.Location} location
      * @return {boolean}
      */
     isBlackboxedRawLocation: function(location)
     {
         if (!this._scriptIdToPositions.has(location.scriptId))
-            return false;
+            return this._isBlackboxedScript(location.script());
         var positions = this._scriptIdToPositions.get(location.scriptId);
         var index = positions.lowerBound(location, comparator);
         return !!(index % 2);
 
         /**
          * @param {!WebInspector.DebuggerModel.Location} a
          * @param {!DebuggerAgent.ScriptPosition} b
          * @return {number}
          */
         function comparator(a, b)
@@ skipping 242 matching lines @@
 
         /**
          * @param {boolean} success
          * @this {WebInspector.BlackboxManager}
          */
         function updateState(success)
         {
             if (success) {
                 this._scriptIdToPositions.set(script.scriptId, positions);
                 this._debuggerWorkspaceBinding.updateLocations(script);
+                var isBlackboxed = positions.length !== 0;
+                if (!isBlackboxed && script.sourceMapURL)
+                    this._debuggerWorkspaceBinding.maybeLoadSourceMap(script);
             } else if (!this._scriptIdToPositions.has(script.scriptId)) {
                 this._scriptIdToPositions.set(script.scriptId, []);
             }
         }
     },
 
     /**
      * @param {string} url
      * @return {string}
      */
@@ skipping 20 matching lines @@
             if (scheme === "chrome-extension")
                 prefix += parsedURL.host + "\\b";
             prefix += ".*";
         }
         return prefix + name.escapeForRegExp() + (url.endsWith(name) ? "$" : "\\b");
     }
 }
 
 /** @type {!WebInspector.BlackboxManager} */
 WebInspector.blackboxManager;