Package installer related changes to javadoc

Permission REQUEST_INSTALL_PACKAGES is enforced starting from API 26 and
the scope of EXTRA_ORIGINATING_UID is restricted.

Test: make docs

Bug: 33351244
Change-Id: Id7ce9623289374c1c34d3c7b2a0fc0e0493f9923
diff --git a/core/java/android/content/Intent.java b/core/java/android/content/Intent.java
index a4b5ffd..4b76204 100644
--- a/core/java/android/content/Intent.java
+++ b/core/java/android/content/Intent.java
@@ -1507,7 +1507,7 @@
      * Output: If {@link #EXTRA_RETURN_RESULT}, returns whether the install
      * succeeded.
      * <p>
-     * <strong>Note:</strong>If your app is targeting API level higher than 22 you
+     * <strong>Note:</strong>If your app is targeting API level higher than 25 you
      * need to hold {@link android.Manifest.permission#REQUEST_INSTALL_PACKAGES}
      * in order to launch the application installer.
      * </p>
@@ -1646,6 +1646,8 @@
     /**
      * Used as an int extra field with {@link #ACTION_INSTALL_PACKAGE} and
      * {@link #ACTION_VIEW} to indicate the uid of the package that initiated the install
+     * Currently only a system app that hosts the provider authority "downloads" or holds the
+     * permission {@link android.Manifest.permission.MANAGE_DOCUMENTS} can use this.
      * @hide
      */
     @SystemApi