Fix issue #21621920: VI: need mechanism to get current request

Add new APIs to associate a Request with a name, get all active
requests, and get active request by name.

Also add a new Activity.onProvideReferrer() which will allow
applications to propagate referrer information to the assistant
(and other apps they launch) in a consistent way.

Change-Id: I4ef74b5ed07447da9303a74a1bdf42e4966df363

1 files changed, 12 insertions, 7 deletions

diff --git a/core/java/android/app/Instrumentation.java b/core/java/android/app/Instrumentation.java
index 0cc57ba..653f1b6 100644
--- a/core/java/android/app/Instrumentation.java
+++ b/core/java/android/app/Instrumentation.java
@@ -24,6 +24,7 @@ import android.content.IntentFilter;
 import android.content.pm.ActivityInfo;
 import android.content.res.Configuration;
 import android.hardware.input.InputManager;
+import android.net.Uri;
 import android.os.Bundle;
 import android.os.Debug;
 import android.os.IBinder;
@@ -1439,7 +1440,7 @@ public class Instrumentation {
      * objects and dispatches this call to the system activity manager; you can
      * override this to watch for the application to start an activity, and 
      * modify what happens when it does. 
-     *  
+     *
      * <p>This method returns an {@link ActivityResult} object, which you can 
      * use when intercepting application calls to avoid performing the start 
      * activity action but still return the result the application is 
@@ -1448,10 +1449,10 @@ public class Instrumentation {
      * you would like the application to see, and don't call up to the super 
      * class.  Note that an application is only expecting a result if 
      * <var>requestCode</var> is &gt;= 0.
-     *  
+     *
      * <p>This method throws {@link android.content.ActivityNotFoundException}
      * if there was no Activity found to run the given Intent.
-     * 
+     *
      * @param who The Context from which the activity is being started.
      * @param contextThread The main thread of the Context from which the activity
      *                      is being started.
@@ -1464,23 +1465,27 @@ public class Instrumentation {
      * @param requestCode Identifier for this request's result; less than zero 
      *                    if the caller is not expecting a result.
      * @param options Addition options.
-     * 
+     *
      * @return To force the return of a particular result, return an 
      *         ActivityResult object containing the desired data; otherwise
      *         return null.  The default implementation always returns null.
-     *  
+     *
      * @throws android.content.ActivityNotFoundException
-     * 
+     *
      * @see Activity#startActivity(Intent)
      * @see Activity#startActivityForResult(Intent, int)
      * @see Activity#startActivityFromChild
-     * 
+     *
      * {@hide}
      */
     public ActivityResult execStartActivity(
             Context who, IBinder contextThread, IBinder token, Activity target,
             Intent intent, int requestCode, Bundle options) {
         IApplicationThread whoThread = (IApplicationThread) contextThread;
+        Uri referrer = target != null ? target.onProvideReferrer() : null;
+        if (referrer != null) {
+            intent.putExtra(Intent.EXTRA_REFERRER, referrer);
+        }
         if (mActivityMonitors != null) {
             synchronized (mSync) {
                 final int N = mActivityMonitors.size();