5 files changed, 32 insertions, 11 deletions

diff --git a/core/java/android/app/Activity.java b/core/java/android/app/Activity.java
index a5a06e3..599a608 100644
--- a/core/java/android/app/Activity.java
+++ b/core/java/android/app/Activity.java
@@ -4314,11 +4314,10 @@ public class Activity extends ContextThemeWrapper
     }
 
     /**
-     * Call this when your activity is done and should be closed.  The
-     * ActivityResult is propagated back to whoever launched you via
-     * onActivityResult().
+     * Finishes the current activity and specifies whether to remove the task associated with this
+     * activity.
      */
-    public void finish() {
+    private void finish(boolean finishTask) {
         if (mParent == null) {
             int resultCode;
             Intent resultData;
@@ -4332,7 +4331,7 @@ public class Activity extends ContextThemeWrapper
                     resultData.prepareToLeaveProcess();
                 }
                 if (ActivityManagerNative.getDefault()
-                    .finishActivity(mToken, resultCode, resultData)) {
+                        .finishActivity(mToken, resultCode, resultData, finishTask)) {
                     mFinished = true;
                 }
             } catch (RemoteException e) {
@@ -4344,6 +4343,15 @@ public class Activity extends ContextThemeWrapper
     }
 
     /**
+     * Call this when your activity is done and should be closed.  The
+     * ActivityResult is propagated back to whoever launched you via
+     * onActivityResult().
+     */
+    public void finish() {
+        finish(false);
+    }
+
+    /**
      * Finish this activity as well as all activities immediately below it
      * in the current task that have the same affinity.  This is typically
      * used when an application can be launched on to another task (such as
@@ -4442,6 +4450,14 @@ public class Activity extends ContextThemeWrapper
     }
 
     /**
+     * Call this when your activity is done and should be closed and the task should be completely
+     * removed as a part of finishing the Activity.
+     */
+    public void finishAndRemoveTask() {
+        finish(true);
+    }
+
+    /**
      * Called when an activity you launched exits, giving you the requestCode
      * you started it with, the resultCode it returned, and any additional
      * data from it.  The <var>resultCode</var> will be
diff --git a/core/java/android/app/ActivityManagerNative.java b/core/java/android/app/ActivityManagerNative.java
index 44c74d8..10831f2 100644
--- a/core/java/android/app/ActivityManagerNative.java
+++ b/core/java/android/app/ActivityManagerNative.java
@@ -263,7 +263,8 @@ public abstract class ActivityManagerNative extends Binder implements IActivityM
             if (data.readInt() != 0) {
                 resultData = Intent.CREATOR.createFromParcel(data);
             }
-            boolean res = finishActivity(token, resultCode, resultData);
+            boolean finishTask = (data.readInt() != 0);
+            boolean res = finishActivity(token, resultCode, resultData, finishTask);
             reply.writeNoException();
             reply.writeInt(res ? 1 : 0);
             return true;
@@ -2342,7 +2343,7 @@ class ActivityManagerProxy implements IActivityManager
         data.recycle();
         return result != 0;
     }
-    public boolean finishActivity(IBinder token, int resultCode, Intent resultData)
+    public boolean finishActivity(IBinder token, int resultCode, Intent resultData, boolean finishTask)
             throws RemoteException {
         Parcel data = Parcel.obtain();
         Parcel reply = Parcel.obtain();
@@ -2355,6 +2356,7 @@ class ActivityManagerProxy implements IActivityManager
         } else {
             data.writeInt(0);
         }
+        data.writeInt(finishTask ? 1 : 0);
         mRemote.transact(FINISH_ACTIVITY_TRANSACTION, data, reply, 0);
         reply.readException();
         boolean res = reply.readInt() != 0;
diff --git a/core/java/android/app/ActivityThread.java b/core/java/android/app/ActivityThread.java
index 965f815..88eae7f 100644
--- a/core/java/android/app/ActivityThread.java
+++ b/core/java/android/app/ActivityThread.java
@@ -2363,7 +2363,7 @@ public final class ActivityThread {
             // manager to stop us.
             try {
                 ActivityManagerNative.getDefault()
-                    .finishActivity(r.token, Activity.RESULT_CANCELED, null);
+                    .finishActivity(r.token, Activity.RESULT_CANCELED, null, false);
             } catch (RemoteException ex) {
                 // Ignore
             }
@@ -2984,7 +2984,7 @@ public final class ActivityThread {
             // just end this activity.
             try {
                 ActivityManagerNative.getDefault()
-                    .finishActivity(token, Activity.RESULT_CANCELED, null);
+                    .finishActivity(token, Activity.RESULT_CANCELED, null, false);
             } catch (RemoteException ex) {
             }
         }
diff --git a/core/java/android/app/IActivityManager.java b/core/java/android/app/IActivityManager.java
index bfbd339..52003f1 100644
--- a/core/java/android/app/IActivityManager.java
+++ b/core/java/android/app/IActivityManager.java
@@ -79,7 +79,7 @@ public interface IActivityManager extends IInterface {
             int flagsMask, int flagsValues, Bundle options) throws RemoteException;
     public boolean startNextMatchingActivity(IBinder callingActivity,
             Intent intent, Bundle options) throws RemoteException;
-    public boolean finishActivity(IBinder token, int code, Intent data)
+    public boolean finishActivity(IBinder token, int code, Intent data, boolean finishTask)
             throws RemoteException;
     public void finishSubActivity(IBinder token, String resultWho, int requestCode) throws RemoteException;
     public boolean finishActivityAffinity(IBinder token) throws RemoteException;
diff --git a/core/java/android/util/Patterns.java b/core/java/android/util/Patterns.java
index 13cc88b..2cc91b9 100644
--- a/core/java/android/util/Patterns.java
+++ b/core/java/android/util/Patterns.java
@@ -130,7 +130,10 @@ public class Patterns {
     private static final String IRI
         = "[" + GOOD_IRI_CHAR + "]([" + GOOD_IRI_CHAR + "\\-]{0,61}[" + GOOD_IRI_CHAR + "]){0,1}";
 
-    private static final String HOST_NAME = IRI + "(?:\\." + IRI + ")+";
+    private static final String GOOD_GTLD_CHAR =
+        "a-zA-Z\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF";
+    private static final String GTLD = "[" + GOOD_GTLD_CHAR + "]{2,63}";
+    private static final String HOST_NAME = "(" + IRI + "\\.)+" + GTLD;
 
     public static final Pattern DOMAIN_NAME
         = Pattern.compile("(" + HOST_NAME + "|" + IP_ADDRESS + ")");