Fix the default search app icon to conform with webstore guidlines.

BUG=102431
TEST=Make sure that the default search app's icon meets the criteria listed
in the bug description
Review URL: http://codereview.chromium.org/8480026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@109669 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/resources/default_apps/external_extensions.json

@@ -11,7 +11,7 @@
   },
   "coobgpohoikkiipiblmjeljniedjpjpf" : {
     "external_crx": "search.crx",
-    "external_version": "0.0.0.11"
+    "external_version": "0.0.0.13"
   },
   "pjkljhegncpnkpknbcohdijeoejaedia" : {
     "external_crx": "gmail.crx",