i solved.
Cursor mycur = managedQuery(Browser.BOOKMARKS_URI, Browser.HISTORY_PROJECTION, null, null, null);
int count = mycur.getCount();
mycur.moveToFirst();
if(mycur.moveToFirst() && count>0)
{
while(count>0)
{
Log.e("title",mycur.getString(Browser.HISTORY_PROJECTION_URL_INDEX));
j++;
count--;
mycur.moveToNext();
}
}