[Passwords] Fixed margin of password check buttons.

This CL adds a left margin of 8px.

Bug: 1095904
Change-Id: I77a797ddabe5639190f1133065ffc628b7b4b44c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2257853Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Commit-Queue: Christoph Schwering <schwering@google.com>
Cr-Commit-Position: refs/heads/master@{#781245}

chrome/browser/resources/settings/autofill_page/password_check.html

@@ -86,7 +86,7 @@
       </div>
       <cr-button id="controlPasswordCheckButton"
           on-click="onPasswordCheckButtonClick_"
-          class$="[[getButtonTypeClass_(status)]]"
+          class$="[[getButtonTypeClass_(status)]] cr-button-gap"
           hidden$="[[isButtonHidden_]]">
         [[getButtonText_(status)]]
       </cr-button>

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

@@ -112,7 +112,7 @@
           <div>$i18n{checkPasswords}</div>
           <div class="secondary">$i18n{checkPasswordsDescription}</div>
         </div>
-        <cr-button id="checkPasswordsButton" class="action-button"
+        <cr-button id="checkPasswordsButton" class="action-button cr-button-gap"
             on-click="onCheckPasswordsClick_">
           $i18n{checkPasswords}
         </cr-button>