Adjustment to banner of RTT chat window.

1. Change name and timer font to roboto medium
2. Change close button to back button

Bug: 67596257,70177426
Test: manual
PiperOrigin-RevId: 181404033
Change-Id: I19137c51a6617276dd5ae6a7ba47c12d995e2feb
diff --git a/java/com/android/incallui/rtt/impl/res/layout/rtt_banner.xml b/java/com/android/incallui/rtt/impl/res/layout/rtt_banner.xml
index 7d9cd6f..4ce94f9 100644
--- a/java/com/android/incallui/rtt/impl/res/layout/rtt_banner.xml
+++ b/java/com/android/incallui/rtt/impl/res/layout/rtt_banner.xml
@@ -29,7 +29,7 @@
       android:layout_centerVertical="true"
       android:background="@android:color/transparent"
       android:contentDescription="@string/content_description_rtt_back_button"
-      android:src="@drawable/quantum_ic_close_vd_theme_24"
+      android:src="@drawable/quantum_ic_arrow_back_vd_theme_24"
       android:tint="#DF000000"/>
   <LinearLayout
       android:layout_width="wrap_content"
@@ -43,15 +43,19 @@
         android:id="@+id/rtt_name_or_number"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:fontFamily="sans-serif-medium"
         android:includeFontPadding="false"
-        android:textAppearance="@style/Dialer.Incall.TextAppearance.RttTitle"
+        android:textColor="#DD000000"
+        android:textSize="20sp"
         tools:text="Bruce Graham"/>
     <Chronometer
         android:id="@+id/rtt_timer"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:fontFamily="sans-serif-medium"
         android:includeFontPadding="false"
-        android:textAppearance="@style/Dialer.Incall.TextAppearance.RttTimer"
+        android:textColor="#DD000000"
+        android:textSize="14sp"
         tools:text="00:09"/>
   </LinearLayout>
   <ImageButton
diff --git a/java/com/android/incallui/rtt/impl/res/values/styles.xml b/java/com/android/incallui/rtt/impl/res/values/styles.xml
index b4bb914..55207a3 100644
--- a/java/com/android/incallui/rtt/impl/res/values/styles.xml
+++ b/java/com/android/incallui/rtt/impl/res/values/styles.xml
@@ -15,21 +15,9 @@
   ~ limitations under the License
   -->
 <resources>
-  <style name="Dialer.Incall.TextAppearance.RttTitle" parent="Dialer.Incall.TextAppearance">
-    <item name="android:fontFamily">sans-serif</item>
-    <item name="android:textColor">#DD000000</item>
-    <item name="android:textSize">20sp</item>
-  </style>
-
   <style name="Dialer.Incall.TextAppearance.RttMessage" parent="Dialer.Incall.TextAppearance">
     <item name="android:fontFamily">sans-serif</item>
     <item name="android:textColor">#DD000000</item>
     <item name="android:textSize">16sp</item>
   </style>
-
-  <style name="Dialer.Incall.TextAppearance.RttTimer" parent="Dialer.Incall.TextAppearance">
-    <item name="android:fontFamily">sans-serif</item>
-    <item name="android:textColor">#DD000000</item>
-    <item name="android:textSize">14sp</item>
-  </style>
 </resources>
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