[MD settings] using h2 for sub-headers consistently.

chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html

Index: chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html
diff --git a/chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html b/chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html
index 90e3a12d1e2ac8a3f839332498593ae3e1626206..04b512eebc781843f34b633530c2b6d12a1b9634 100644
--- a/chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html
+++ b/chrome/browser/resources/settings/passwords_and_forms_page/passwords_section.html
@@ -15,10 +15,6 @@
   <link rel="import" type="css" href="chrome://resources/css/action_link.css">
   <template>
     <style include="settings-shared passwords-shared">
-      #manageLink {
-        margin-bottom: 24px;
-      }
-
       #password {
         background-color: transparent;
         border: none;
@@ -27,10 +23,6 @@
         width: 0;
       }
 
-      #autosigninCheckbox {
-        margin-bottom: 24px;
-      }
-
       .website-column {
         flex: 3;
       }
@@ -55,14 +47,21 @@
         @apply(--settings-actionable);
       }
     </style>
-    <settings-checkbox id="autosigninCheckbox"
-        pref="{{prefs.credentials_enable_autosignin}}"
-        label="$i18n{passwordsAutosigninLabel}"
-        sub-label="$i18n{passwordsAutosigninDescription}">
-    </settings-checkbox>
-    <div id="manageLink">$i18nRaw{managePasswordsLabel}</div>
-    <div class="heading">$i18n{savedPasswordsHeading}</div>
-    <div class="item-list" scrollable>
+    <div class="settings-box first two-line">
+      <settings-checkbox id="autosigninCheckbox"
+          pref="{{prefs.credentials_enable_autosignin}}"
+          label="$i18n{passwordsAutosigninLabel}"
+          sub-label="$i18n{passwordsAutosigninDescription}">
+      </settings-checkbox>
+    </div>
+    <div id="manageLink" class="settings-box first">
+      <!-- This span lays out the url correctly, relative to the label. -->
+      <span>$i18nRaw{managePasswordsLabel}</span>
+    </div>
+    <div class="settings-box first">
+      <h2>$i18n{savedPasswordsHeading}</h2>
+    </div>
+    <div class="list-frame" scrollable>
       <div class="list-item column-header">
         <div class="website-column">$i18n{editPasswordWebsiteLabel}</div>
         <div class="username-column">
@@ -74,7 +73,7 @@
       </div>
       <iron-list id="passwordList"
           items="[[getFilteredPasswords_(savedPasswords, filter)]]"
-          class="vertical-list list-section list-with-header">
+          class="vertical-list list-with-header">
         <template>
           <div class="list-item">
             <div class="website-column">
@@ -109,9 +108,10 @@
           item="[[activePassword]]">
       </password-edit-dialog>
     </template>
-    <div class="heading">$i18n{passwordExceptionsHeading}</div>
-    <div id="passwordExceptionsList"
-        class="vertical-list list-section item-list">
+    <div class="settings-box block first">
+      <h2>$i18n{passwordExceptionsHeading}</h2>
+    </div>
+    <div id="passwordExceptionsList" class="list-frame vertical-list">
       <template is="dom-repeat" items="[[passwordExceptions]]"
           filter="[[passwordExceptionFilter_(filter)]]">
         <div class="list-item two-line">