add column to downloads table to store error msg when a download fails

useful for debugging for bugs like bug:3187299
without this error message, one doesn't know WHY downloads
fail.
there is a STOPSHIP comment around storage of this error
message in database.

Change-Id: I1fa49ee9eb97be16aced1611ab30a286b0b6c8d2

parent 4f663081

core/java/android/provider/Downloads.java

+7 −0

Original line number	Diff line number	Diff line
		@@ -375,6 +375,13 @@ public final class Downloads {
		*/
		public static final String COLUMN_MEDIA_SCANNED = "scanned";

		/**
		* The column with errorMsg for a failed downloaded.
		* Used only for debugging purposes.
		* <P>Type: TEXT</P>
		*/
		public static final String COLUMN_ERROR_MSG = "errorMsg";

		/*
		* Lists the destinations that an application can specify for a download.
		*/