Incorporating the new appcompat-v7 ToolBar with the Navigation Drawer

nav_drawer_toolbar.xml

<android.support.v4.widget.DrawerLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:background="@color/background_material_dark"
    android:layout_marginTop="@dimen/status_bar_padding"
    android:id="@+id/drawer_layout"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    >
  <RelativeLayout
      android:layout_width="match_parent"
      android:layout_height="match_parent"
      android:orientation="vertical"
      >

    <android.support.v7.widget.Toolbar
        android:id="@+id/main_toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        android:layout_gravity="top"
        android:background="?attr/colorPrimary"
        app:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
        />

      <FrameLayout
          android:layout_width="match_parent"
          android:layout_height="match_parent"
          android:layout_below="@+id/main_toolbar"
          android:id="@+id/fragment_container"
          />

  </RelativeLayout>

  <FrameLayout
      android:layout_width="300dp"
      android:layout_height="match_parent"
      android:id="@+id/drawer_container"
      android:layout_gravity="start"
      android:background="@color/dark_primary"
      />

</android.support.v4.widget.DrawerLayout>