On Content Settings exceptions dialogs: Replace the placeholder text ("Add a...

On Content Settings exceptions dialogs: Replace the placeholder text ("Add a new hostname pattern") of the input field used for adding new exceptions with a string containing a sample pattern ("[*.]example.com")

BUG=232378
TEST= (1) open chrome://settings/contentExceptions#cookies
  (2) Verify that the text in the input field is "[*.]example.com"

Review URL: https://codereview.chromium.org/13865003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@194592 0039d316-1c4b-4281-b951-d872f2087c98

chrome/app/generated_resources.grd

@@ -8480,7 +8480,7 @@ The following plug-in is unresponsive: <ph name="PLUGIN_NAME">$1
         Exceptions below only apply to the current incognito session.
       </message>
       <message name="IDS_EXCEPTIONS_ADD_NEW_INSTRUCTIONS" desc="Placeholder text before the user adds a new exception" >
-        Add a new hostname pattern
+        [*.]example.com
       </message>
       <message name="IDS_EXCEPTIONS_GEOLOCATION_EMBEDDED_ON_HOST" desc="Template text for a child row in the Geolocation Exceptions page view. Controls the permission setting for the parent page when embedded on the specified site.">
         embedded on <ph name="URL">$1<ex>www.google.com</ex></ph>