Trimming: Exit current activity after click done

Don't auto exit the trimmed video playing.
bug:7093055

Change-Id: I97fa1556cbe0591f2204ab4135b85375f82abbe8
diff --git a/src/com/android/gallery3d/app/TrimVideo.java b/src/com/android/gallery3d/app/TrimVideo.java
index cb5b171..09a2abd 100644
--- a/src/com/android/gallery3d/app/TrimVideo.java
+++ b/src/com/android/gallery3d/app/TrimVideo.java
@@ -29,6 +29,7 @@
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
+import android.provider.MediaStore;
 import android.provider.MediaStore.Video;
 import android.provider.MediaStore.Video.VideoColumns;
 import android.view.View;
@@ -316,7 +317,9 @@
                             // Show the result only when the activity not stopped.
                             Intent intent = new Intent(android.content.Intent.ACTION_VIEW);
                             intent.setDataAndTypeAndNormalize(Uri.fromFile(mDstFile), "video/*");
+                            intent.putExtra(MediaStore.EXTRA_FINISH_ON_COMPLETION, false);
                             startActivity(intent);
+                            finish();
                         }
                     }
                 });