Extension docs: Adjusting `.../samples.html` to have more readable diffs.

chrome/common/extensions/docs/static/samples.html

 <link rel="stylesheet" href="css/samples.css" />
 <script jscontent="search_data"></script>
 <script src="js/sample_search.js"></script>
 
 <script type="text/prerenderjs">
   /**
    * The following code is executed before the jstemplate in this file is
    * rendered, meaning it can modify template data by changing the pageData
    * window variable.  See api_page_generator.js for more information.
    *
@@ skipping 41 matching lines @@
           'url': 'http://src.chromium.org/viewvc/chrome/trunk' +
                  '/src/chrome/common/extensions/docs/' + sample.path +
                  source_files[i] + '?content-type=text/plain'
       });
     }
   });
 
   // The search data should be injected as executable JavaScript, so assign
   // a template value which will store the data as a page global.
   pageData.search_data = "var search_data = " +
-                         JSON.stringify(search_data); + ";";
+                         JSON.stringify(search_data, null, 2) + ";\n";
 </script>
 
 <div id="controls">
   <div id="searchbox" class="controlbox">
     <strong>Filter by keyword:</strong>
     <input autofocus type="search" type="text" id="searchinput" placeholder="Type to search" onkeyup="filterSamples();" />
     <a id="clearlink" href="javascript:void(0);" onclick="clearFilter();" style="display: none;">clear</a>
   </div>
 
   <div id="filterbox" class="controlbox">
@@ skipping 35 matching lines @@
   </div>
   <div>
     <a jsvalues="href:'http://src.chromium.org/viewvc/chrome/trunk/src/chrome/common/extensions/docs/' + path" target="_blank">Browse source</a>
     - <a jsvalues="href:$this.zip_path">Download source</a>
   </div>
 </div>
 
 <div id="noresults" style="display:none">
   Sorry, no results were found.
 </div>