Diminuir tamanho dos espaços Toolbar #Android #Toolbar

Toolbar.xml

 <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar_repor"
        android:layout_width="match_parent"
        android:layout_height="?actionBarSize"
        android:background="?colorPrimary"
        android:contentInsetStart="0dp"
        android:minHeight="?attr/actionBarSize"
        android:theme="@style/ThemeOverlay.AppCompat.ActionBar"
        app:contentInsetLeft="0dp"
        app:contentInsetStart="0dp"
        app:contentInsetStartWithNavigation="0dp">