Fix 6414061: Add new ACTION_ASSIST intent.

Change-Id: I3d334f67723ac89f6001267e0f06ad76190b929f
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index cb8fea21..4ed6f25 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -1099,6 +1099,14 @@
     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
     public static final String ACTION_WEB_SEARCH = "android.intent.action.WEB_SEARCH";
     /**
+     * Activity Action: Perform assist action.
+     * <p>
+     * Input: nothing
+     * Output: nothing.
+     */
+    @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
+    public static final String ACTION_ASSIST = "android.intent.action.ASSIST";
+    /**
      * Activity Action: List all available applications
      * <p>Input: Nothing.
      * <p>Output: nothing.