Updating omnibox sample to use new XML formatting method.

chrome/common/extensions/docs/samples.json

 {
   "api": {
     "chrome.bookmarks.create": "bookmarks.html#method-create", 
     "chrome.bookmarks.export": "bookmarks.html#method-export", 
     "chrome.bookmarks.get": "bookmarks.html#method-get", 
     "chrome.bookmarks.getChildren": "bookmarks.html#method-getChildren", 
     "chrome.bookmarks.getRecent": "bookmarks.html#method-getRecent", 
     "chrome.bookmarks.getTree": "bookmarks.html#method-getTree", 
     "chrome.bookmarks.import": "bookmarks.html#method-import", 
     "chrome.bookmarks.move": "bookmarks.html#method-move", 
@@ skipping 585 matching lines @@
       "name": "Extension Docs Search", 
       "path": "examples/api/omnibox/extension-docs/", 
       "protocols": [
         "http://"
       ], 
       "search_string": "EXTENSION DOCS SEARCH SEARCH THE CHROME EXTENSIONS DOCUMENTATION.  TO USE, TYPE CRDOC PLUS A SEARCH TERM INTO THE OMNIBOX. BACKGROUND_PAGE TABS CHROME.OMNIBOX.ONINPUTCHANGED CHROME.OMNIBOX.ONINPUTENTERED CHROME.TABS.CREATE CHROME.TABS.GET CHROME.TABS.ONREMOVED CHROME.TABS.UPDATE", 
       "source_files": [
         "background.html", 
         "manifest.json"
       ], 
-      "source_hash": "eb3c20a0f9b6035a8e9e3a7448d5608bcc44fce7", 
+      "source_hash": "0aa8ec9a2c091e227661ca5010d08f6823e643a7", 
       "zip_path": "examples/api/omnibox/extension-docs.zip"
     }, 
     {
       "api_calls": [
         "chrome.browserAction.onClicked", 
         "chrome.browserAction.setBadgeBackgroundColor", 
         "chrome.browserAction.setBadgeText", 
         "chrome.browserAction.setIcon", 
         "chrome.browserAction.setTitle", 
         "chrome.extension.getBackgroundPage", 
@@ skipping 921 matching lines @@
       "source_files": [
         "manifest.json", 
         "typedUrls.html", 
         "typedUrls.js"
       ], 
       "source_hash": "72d5c3586feefc692c63039ce8bdb5f9d366c0e2", 
       "zip_path": "examples/api/history/showHistory.zip"
     }
   ]
 }