IssueTracker

Artifact used com.android.support:design:27.1.1
Version used: 27.1.1
Theme used:
Devices/Android versions reproduced on: any device

How to reproduce :
Project from the attachment when you try it,
pull to refresh will not work because recyclerview_row_header.xml content is wrap_content and view inside is gone (resulting recyclerview_row_header layout 0dp)
change visibility of the textView inside recyclerview_row_header.xml from gone to visible, or put minHeight=1dp to the root layout in the recyclerview_row_header.xml, and pull to refresh is working again
is that expected?

not working if
```
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/title_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20sp"
        android:visibility="gone"/>

</LinearLayout>
```
working if
```
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="1dp"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/title_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20sp"
        android:visibility="gone"/>

</LinearLayout>
```
or
```
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal">

    <TextView
        android:id="@+id/title_text"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="20sp"/>

</LinearLayout>
```
- Relevant code to trigger the issue.
- A screenrecord or screenshots showing the issue (if UI related).