Reduce the size of the settings password dialog

-Set a specific dialog width because the default cr-dialog width is too
large

-Reduced padding to bring the elements closer together

Bug: 985108
Change-Id: I0b4f9a958b88a43669dcabceefbc9e9eb3a632da
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1775219Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Bailey Berro <baileyberro@chromium.org>
Commit-Queue: Gavin Williams <gavinwill@chromium.org>
Cr-Commit-Position: refs/heads/master@{#692193}

chrome/browser/resources/settings/controls/password_prompt_dialog.html

@@ -8,19 +8,18 @@
 <dom-module id="settings-password-prompt-dialog">
   <template>
     <style include="settings-shared">
-      #passwordInput {
-        display: inline-block;
+      cr-dialog::part(dialog) {
+        width: 320px;
       }
 
-      .settings-box {
+      #passwordPrompt {
         padding: 0;
       }
     </style>
-
     <cr-dialog id="dialog" close-text="$i18n{close}">
       <div slot="title">$i18n{passwordPromptTitle}</div>
       <div slot="body">
-        <div class="settings-box first">
+        <div id="passwordPrompt" class="settings-box first line-only">
           [[passwordPromptText]]
         </div>
         <cr-input id="passwordInput" type="password"