Implement cancelOutgoingCall

Change-Id: I9e5da9c607675bc3c230f6eb6d1cc149a38bf905
diff --git a/src/com/android/telecomm/OutgoingCallResponse.java b/src/com/android/telecomm/OutgoingCallResponse.java
new file mode 100644
index 0000000..3d5c393
--- /dev/null
+++ b/src/com/android/telecomm/OutgoingCallResponse.java
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2014, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.telecomm;
+
+/**
+ * A callback for providing the result of placing an outgoing call.
+ */
+interface OutgoingCallResponse {
+    void onOutgoingCallSuccess();
+    void onOutgoingCallFailure(int code, String msg);
+    void onOutgoingCallCancel();
+}