DevTools: Fix all outstanding JavaScript style issues.

third_party/WebKit/Source/devtools/front_end/sdk/SourceMap.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 189 matching lines @@
      * @param {string} content
      */
     function contentLoaded(statusCode, headers, content)
     {
         if (!content || statusCode >= 400) {
             callback(null);
             return;
         }
 
         if (content.slice(0, 3) === ")]}")
-            content = content.substring(content.indexOf('\n'));
+            content = content.substring(content.indexOf("\n"));
         try {
             var payload = /** @type {!SourceMapV3} */ (JSON.parse(content));
             var baseURL = sourceMapURL.startsWith("data:") ? compiledURL : sourceMapURL;
 
             callback(new WebInspector.TextSourceMap(compiledURL, baseURL, payload));
-        } catch(e) {
+        } catch (e) {
             console.error(e);
             WebInspector.console.error("Failed to parse SourceMap: " + sourceMapURL);
             callback(null);
         }
     }
 }
 
 WebInspector.TextSourceMap.prototype = {
     /**
      * @override
@@ skipping 340 matching lines @@
     },
 
     /**
      * @return {boolean}
      */
     hasNext: function()
     {
         return this._position < this._string.length;
     }
 }