[Smart Lock] Add a generic error message for out-of-date software.

chrome/app/generated_resources.grd

Index: chrome/app/generated_resources.grd
diff --git a/chrome/app/generated_resources.grd b/chrome/app/generated_resources.grd
index 2022dd08d9f7e1fb17aa9523de2668d7e16fd411..54c3509ddb848116335a579f7204554d728236a4 100644
--- a/chrome/app/generated_resources.grd
+++ b/chrome/app/generated_resources.grd
@@ -15404,6 +15404,9 @@ Do you accept?
       <message name="IDS_EASY_UNLOCK_SETUP_ERROR_REMOTE_SOFTWARE_OUT_OF_DATE" desc="The error message to display when the user's phone software is too old for compatibility with Easy Unlock. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
         Found your <ph name="PHONE_TYPE">$1<ex>LGE Nexus 5</ex></ph>. But Smart Lock only works on devices with Android 5.0 and up. &lt;a&gt;Learn more&lt;/a&gt;
       </message>
+      <message name="IDS_EASY_UNLOCK_SETUP_ERROR_REMOTE_SOFTWARE_OUT_OF_DATE_GENERIC" desc="The generic error message to display when the user's phone software is too old for compatibility with Easy Unlock. This is only shown when the user's phone type is not known. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
+        Found your phone. But Smart Lock only works on devices with Android 5.0 and up. &lt;a&gt;Learn more&lt;/a&gt;
+      </message>
       <message name="IDS_EASY_UNLOCK_SETUP_ERROR_FINDING_PHONE" desc="A generic catch-all error message to display when something goes wrong after the user clicks 'Find my phone' during Easy Unlock setup. Note that the &lt;a&gt; element surrounds a link; these HTML elements should be preserved in the translation.">
         Can’t find your phone. Make sure you’re using a compatible Android phone that’s turned on and within arm’s reach. &lt;a&gt;Learn more&lt;/a&gt;
       </message>