Fix web extent in default search app.

BUG=103278
TEST=See comment #4 in bug for repro steps.
Review URL: http://codereview.chromium.org/8747014

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@112283 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/default_apps/external_extensions.json

@@ -11,7 +11,7 @@
   },
   "coobgpohoikkiipiblmjeljniedjpjpf" : {
     "external_crx": "search.crx",
-    "external_version": "0.0.0.13"
+    "external_version": "0.0.0.14"
   },
   "pjkljhegncpnkpknbcohdijeoejaedia" : {
     "external_crx": "gmail.crx",