Site Settings Android: A few polish items.

chrome/android/java/res/values/dimens.xml

Index: chrome/android/java/res/values/dimens.xml
diff --git a/chrome/android/java/res/values/dimens.xml b/chrome/android/java/res/values/dimens.xml
index 43f35fd3546a9419b4f30bfda9690155ad79815d..4f94b57e69f9e5749ffd414d7739cbe3f82c676a 100644
--- a/chrome/android/java/res/values/dimens.xml
+++ b/chrome/android/java/res/values/dimens.xml
@@ -112,10 +112,13 @@
     <dimen name="password_generation_horizontal_margin">10dp</dimen>
     <dimen name="password_generation_text_vertical_margin">12dp</dimen>
 
-    <!--  Preferences dimensions -->
+    <!-- Preferences dimensions -->
     <dimen name="pref_autofill_field_horizontal_padding">3dp</dimen>
     <dimen name="pref_autofill_field_top_padding">10dp</dimen>
 
+    <!-- Site Settings dimensions -->
+    <dimen name="site_setttings_icon_padding">4.6dp</dimen>
+
     <!-- Minimum height/width for a touchable item -->
     <dimen name="min_touch_target_size">48dp</dimen>