Update the top margin and input type for the nickname field.

Screenshot: https://screenshot.googleplex.com/1ynJ0MFDGbt

Bug: 1082013
Change-Id: I3689de3ada2e772aff94376748e57097fe0359f1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2291530Reviewed-by: Jared Saul <jsaul@google.com>
Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Siddharth Shah <siashah@chromium.org>
Cr-Commit-Position: refs/heads/master@{#787939}

chrome/android/java/res/layout/autofill_local_card_editor.xml

@@ -117,7 +117,7 @@
         app:errorEnabled="true"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
-        android:layout_marginTop="@dimen/pref_autofill_field_large_top_margin"
+        android:layout_marginTop="@dimen/pref_autofill_field_extra_large_top_margin"
         android:layout_marginBottom="@dimen/pref_autofill_field_bottom_margin">
 
         <EditText
@@ -127,7 +127,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:imeOptions="flagNoExtractUi"
-            android:inputType="text"
+            android:inputType="textCapWords"
             android:hint="@string/autofill_credit_card_editor_nickname" />
 
     </com.google.android.material.textfield.TextInputLayout>

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

@@ -501,6 +501,7 @@
     <dimen name="pref_autofill_field_horizontal_padding">4dp</dimen>
     <dimen name="pref_autofill_field_top_margin">8dp</dimen>
     <dimen name="pref_autofill_field_large_top_margin">16dp</dimen>
+    <dimen name="pref_autofill_field_extra_large_top_margin">24dp</dimen>
     <dimen name="pref_autofill_field_bottom_margin">8dp</dimen>
     <!-- The dropdown element has no embedded bottom padding like the TextView has so the margin
          is doubled. -->