Expand call/connection extras API.

Currently, connection extras are propagated up to Telecom as an
entire bundle.  This is not ideal, as any time a change is made to
the extras, the bundle needs to be fetched, changed, and then re-set on
the connection, where it is parceled to Telecom as a whole.

Using how extras on an Intent as inspiration, this CL adds separate
putExtras, putExtra, and removeExtra methods to allow manipulation of
the extras bundle without operating on it in its entirety.

This Cl also adds support for Calls modifying the extras bundle, with
changes propagated back down to ConnectionServices.

Bug: 27458894
Change-Id: I152340a3bca2dc03f170b06b172a6823410fb961
diff --git a/telecomm/java/android/telecom/ConnectionServiceAdapter.java b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
index e91128f..81e4c22 100644
--- a/telecomm/java/android/telecom/ConnectionServiceAdapter.java
+++ b/telecomm/java/android/telecom/ConnectionServiceAdapter.java
@@ -398,16 +398,88 @@
     }
 
     /**
-     * Sets extras associated with a connection.
+     * Adds some extras associated with a {@code Connection}.
      *
      * @param callId The unique ID of the call.
-     * @param extras The extras to associate with this call.
+     * @param extras The extras to add.
      */
-    void setExtras(String callId, Bundle extras) {
-        Log.v(this, "setExtras: %s", extras);
+    void putExtras(String callId, Bundle extras) {
+        Log.v(this, "putExtras: %s", callId);
         for (IConnectionServiceAdapter adapter : mAdapters) {
             try {
-                adapter.setExtras(callId, extras);
+                adapter.putExtras(callId, extras);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
+    /**
+     * Adds an extra associated with a {@code Connection}.
+     *
+     * @param callId The unique ID of the call.
+     * @param key The extra key.
+     * @param value The extra value.
+     */
+    void putExtra(String callId, String key, boolean value) {
+        Log.v(this, "putExtra: %s %s=%b", callId, key, value);
+        for (IConnectionServiceAdapter adapter : mAdapters) {
+            try {
+                Bundle bundle = new Bundle();
+                bundle.putBoolean(key, value);
+                adapter.putExtras(callId, bundle);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
+    /**
+     * Adds an extra associated with a {@code Connection}.
+     *
+     * @param callId The unique ID of the call.
+     * @param key The extra key.
+     * @param value The extra value.
+     */
+    void putExtra(String callId, String key, int value) {
+        Log.v(this, "putExtra: %s %s=%d", callId, key, value);
+        for (IConnectionServiceAdapter adapter : mAdapters) {
+            try {
+                Bundle bundle = new Bundle();
+                bundle.putInt(key, value);
+                adapter.putExtras(callId, bundle);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
+    /**
+     * Adds an extra associated with a {@code Connection}.
+     *
+     * @param callId The unique ID of the call.
+     * @param key The extra key.
+     * @param value The extra value.
+     */
+    void putExtra(String callId, String key, String value) {
+        Log.v(this, "putExtra: %s %s=%s", callId, key, value);
+        for (IConnectionServiceAdapter adapter : mAdapters) {
+            try {
+                Bundle bundle = new Bundle();
+                bundle.putString(key, value);
+                adapter.putExtras(callId, bundle);
+            } catch (RemoteException ignored) {
+            }
+        }
+    }
+
+    /**
+     * Removes extras associated with a {@code Connection}.
+     *  @param callId The unique ID of the call.
+     * @param keys The extra keys to remove.
+     */
+    void removeExtras(String callId, List<String> keys) {
+        Log.v(this, "removeExtras: %s %s", callId, keys);
+        for (IConnectionServiceAdapter adapter : mAdapters) {
+            try {
+                adapter.removeExtras(callId, keys);
             } catch (RemoteException ignored) {
             }
         }