Introduce telecom api to launch emeregency dialer.

Test: manual
Bug: 136194151
Change-Id: I5c9732062e5123539343843fb9a9ae3ca7111890
diff --git a/telecomm/java/android/telecom/TelecomManager.java b/telecomm/java/android/telecom/TelecomManager.java
index 2bc20d5..625cd72 100644
--- a/telecomm/java/android/telecom/TelecomManager.java
+++ b/telecomm/java/android/telecom/TelecomManager.java
@@ -16,6 +16,7 @@
 
 import android.Manifest;
 import android.annotation.IntDef;
+import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SuppressAutoDoc;
@@ -1913,6 +1914,29 @@
         return result;
     }
 
+
+    /**
+     * Creates the {@link Intent} which can be used with {@link Context#startActivity(Intent)} to
+     * launch the activity for emergency dialer.
+     *
+     * @param number Optional number to call in emergency dialer
+     * @hide
+     */
+    @SystemApi
+    @NonNull
+    public Intent createLaunchEmergencyDialerIntent(@Nullable String number) {
+        ITelecomService service = getTelecomService();
+        Intent result = null;
+        if (service != null) {
+            try {
+                result = service.createLaunchEmergencyDialerIntent(number);
+            } catch (RemoteException e) {
+                Log.e(TAG, "Error createLaunchEmergencyDialerIntent", e);
+            }
+        }
+        return result;
+    }
+
     /**
      * Determines whether Telecom would permit an incoming call to be added via the
      * {@link #addNewIncomingCall(PhoneAccountHandle, Bundle)} API for the specified