Devtools: Extensible mime typing, mime typing by file name

Source/devtools/front_end/workspace/UISourceCode.js

Index: Source/devtools/front_end/workspace/UISourceCode.js
diff --git a/Source/devtools/front_end/workspace/UISourceCode.js b/Source/devtools/front_end/workspace/UISourceCode.js
index 5c6597aff3557b60b93be09f899abedd25f386cc..379b2c3d4912d5b142477baac1b123ad598da153 100644
--- a/Source/devtools/front_end/workspace/UISourceCode.js
+++ b/Source/devtools/front_end/workspace/UISourceCode.js
@@ -523,12 +523,7 @@ WebInspector.UISourceCode.prototype = {
      */
     extension: function()
     {
-        var lastIndexOfDot = this._name.lastIndexOf(".");
-        var extension = lastIndexOfDot !== -1 ? this._name.substr(lastIndexOfDot + 1) : "";
-        var indexOfQuestionMark = extension.indexOf("?");
-        if (indexOfQuestionMark !== -1)
-            extension = extension.substr(0, indexOfQuestionMark);
-        return extension;
+        return WebInspector.TextUtils.extension(this._name);
     },
 
     /**