[AF Android] Fix height of multiline rows

Multiline entries are used mostly for warnings and other edge cases
where descriptive text is needed. By their nature the height is
variable, so we need to set padding and use a content-wrapping height.
This was done in the old implementation but errantly not carried over to
the refactor.

Bug: 903554
Change-Id: I6e9873c757fb9087af3066bb55017badccd15149
Reviewed-on: https://chromium-review.googlesource.com/c/1327579Reviewed-by: Theresa <twellington@chromium.org>
Commit-Queue: Tommy Martino <tmartino@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607724}

components/autofill/android/java/res/layout/autofill_dropdown_item_refresh.xml

@@ -16,11 +16,14 @@
     android:orientation="horizontal"
     tools:ignore="UnusedResources" >
 
+    <!-- TODO(crbug.com/903554): Remove the fixed layout_height in favor of an equivalent line
+         height and padding. -->
     <LinearLayout
         android:id="@+id/dropdown_label_wrapper"
         android:layout_width="0dp"
-        android:layout_height="@dimen/autofill_dropdown_refresh_item_height"
+        android:layout_height="wrap_content"
         android:layout_weight="1"
+        android:minHeight="@dimen/autofill_dropdown_refresh_item_height"
         android:gravity="center_vertical"
         android:orientation="vertical" >