How to push RecyclerView up and let Toolbar be visible

Question

I make some kind of chat application, the layout contains Toolbar, RecyclerView and panel for sending messages (as on the pictures). I try to implement the following behavior: when the keyboard opens the panel with EditText AND RecyclerView are pushed up but the Toolbar remains visible. Here it is implemented in VK application:

Here is my layout and the result i get

   <android.support.design.widget.CoordinatorLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        xmlns:tools="http://schemas.android.com/tools"
        tools:context=".activity.DialogActivity">

        <include layout="@layout/toolbar_dialog" />

        <RelativeLayout
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            app:layout_behavior="@string/appbar_scrolling_view_behavior">


        <android.support.v7.widget.RecyclerView
            android:id="@+id/recyclerView"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_above="@+id/send_message_layout"
            android:clipToPadding="false"
            android:divider="@null"
            android:paddingTop="8dp"
            android:background="#EAEFF2"
            android:paddingBottom="8dp" />

        <LinearLayout
            android:id="@+id/send_message_layout"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:background="#ffffff"
            android:elevation="8dp"
            android:gravity="center_vertical"
            android:orientation="horizontal"
            android:layout_alignParentBottom="true">
            <ImageView
                android:id="@+id/iv_image"
                android:layout_width="40dp"
                android:layout_height="40dp"
                android:layout_marginLeft="10dp"
                android:layout_marginRight="10dp"
                android:alpha=".5"
                android:background="?selectableItemBackground"
                android:contentDescription="@string/app_name"
                android:padding="2dp"
                android:src="@mipmap/ic_launcher" />

            <EditText
                android:id="@+id/et_message"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:layout_weight="1"
                android:inputType="textMultiLine"
                android:maxLines="3"
                android:hint="Ваше сообщение"
                android:background="@android:color/transparent"
                />

            <Button
                android:id="@+id/btn_send"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:text="Send" />

        </LinearLayout>
        </RelativeLayout>
    </android.support.design.widget.CoordinatorLayout>

In manifest:

android:windowSoftInputMode="adjustResize"

The result:

As you can see my RecyclerView is overlaid by EditText and keyboard. I have tried adjustPan but it hides my toolbar. Can you bring me the solution to achieve such behavior as VK did.