Android Chromoting: Add hooks for the official account-switcher

remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java

Index: remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java
diff --git a/remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java b/remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java
index 5efccca7bd373650294dff39e03c56192631ee3a..c422a27c225f00489619760514ff33af0280ee65 100644
--- a/remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java
+++ b/remoting/android/java/src/org/chromium/chromoting/accountswitcher/AccountSwitcher.java
@@ -4,6 +4,7 @@
 
 package org.chromium.chromoting.accountswitcher;
 
+import android.content.Intent;
 import android.view.View;
 
 /** Common interface for account-switcher implementations. */
@@ -72,4 +73,16 @@ public interface AccountSwitcher {
      * that a valid account is selected, or that the list is empty.
      */
     void reloadAccounts();
+
+    /**
+     * This should be called from the controlling activity's onActivityResult() method. It allows
+     * the account-switcher implementation to launch a child Activity and handle the result.
+     */
+    void onActivityResult(int requestCode, int resultCode, Intent data);
+
+    /**
+     * Releases any resources used by the account-switcher. Should be called by the activity's
+     * onDestroy() method.
+     */
+    void destroy();
 }