[CrOS Network] Fix title of settings dialog used to connect to a network.

The <internet-config> element is used in two situations:
(1) When attempting a connection to an unconfigured network. In this
    case, once the user fills in the information needed to configure the
    network (e.g., Wi-Fi password) and clicks "Connect", a connection is
    attempted to that network.
(2) When attempting to configure a network without connecting. In this
    case, once a user clicks "Save", the network is configured, but no
    connection attempt occurs.

Currently, the dialog title reads "Configure <networkName>" as long as
the network has a name. However, for parity with InternetConfigDialog,
the title should read "Join <networkType>" in the first case listed
above. This CL accomplishes this goal by piggybacking on top of the
"showConnect" property of <internet-config>.

Bug: 963841
Change-Id: I542b1adef3edc1e7cbd4c9dea1ebe63c8af2b7b3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1628108
Auto-Submit: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662897}

chrome/browser/resources/settings/internet_page/internet_config.html

@@ -24,7 +24,9 @@
     </style>
 
     <cr-dialog id="dialog" close-text="$i18n{close}">
-      <div slot="title">[[getDialogTitle_(managedProperties_)]]</div>
+      <div slot="title">
+        [[getDialogTitle_(managedProperties_, showConnect)]]
+      </div>
       <div slot="body">
         <network-config id="networkConfig" class="flex"
             networking-private="[[networkingPrivate]]"

chrome/browser/resources/settings/internet_page/internet_config.js

@@ -124,7 +124,7 @@ Polymer({
   getDialogTitle_: function() {
     const name = /** @type {string} */ (
         CrOnc.getActiveValue(this.managedProperties_.Name));
-    if (name) {
+    if (name && !this.showConnect) {
       return this.i18n('internetConfigName', HTMLEscape(name));
     }
     const type = this.i18n('OncType' + this.managedProperties_.Type);