Change in media scanner to set correct date

When the media scanner scanned a single file, the modified
date (DATE_MODIFIED) was not correctly set in the content
provider. It was set as milliseconds but should have been
set as seconds. This caused downloaded media items to display
wrongly in the camera album, since the date was wrong.

Change-Id: I24cd92215c26f579eb33a4a3890f96c6ef9ec8c0

media/java/android/media/MediaScanner.java

@@ -1203,8 +1203,12 @@ public class MediaScanner
             prescan(path);
 
             File file = new File(path);
+
+            // lastModified is in milliseconds on Files.
+            long lastModifiedSeconds = file.lastModified() / 1000;
+
             // always scan the file, so we can return the content://media Uri for existing files
-            return mClient.doScanFile(path, mimeType, file.lastModified(), file.length(), true);
+            return mClient.doScanFile(path, mimeType, lastModifiedSeconds, file.length(), true);
         } catch (RemoteException e) {
             Log.e(TAG, "RemoteException in MediaScanner.scanFile()", e);
             return null;