LogDog: Add log rendering view.

server/logdog/storage/bigtable/bigtable.go

Index: server/logdog/storage/bigtable/bigtable.go
diff --git a/server/logdog/storage/bigtable/bigtable.go b/server/logdog/storage/bigtable/bigtable.go
index 56ab8b71f1ec8d34983480104fcc974bfe60488e..ff2e525acc2ae03c3bb185d70fa394623c1a6be2 100644
--- a/server/logdog/storage/bigtable/bigtable.go
+++ b/server/logdog/storage/bigtable/bigtable.go
@@ -46,7 +46,7 @@ type btTable interface {
 	// retrieved.
 	//
 	// If keysOnly is true, then the callback will return nil row data.
-	getLogData(c context.Context, rk *rowKey, limit int, keysOnly bool, cb btGetCallback) error
+	getLogData(c context.Context, rk *rowKey, limit int64, keysOnly bool, cb btGetCallback) error
 
 	// deleteRow deletes the log data associated with a given row.
 	deleteRow(context.Context, *rowKey) error
@@ -74,7 +74,7 @@ func (t *btTableProd) putLogData(c context.Context, rk *rowKey, data []byte) err
 	return nil
 }
 
-func (t *btTableProd) getLogData(c context.Context, rk *rowKey, limit int, keysOnly bool, cb btGetCallback) error {
+func (t *btTableProd) getLogData(c context.Context, rk *rowKey, limit int64, keysOnly bool, cb btGetCallback) error {
 	// Construct read options based on Get request.
 	ropts := []bigtable.ReadOption{
 		bigtable.RowFilter(bigtable.FamilyFilter("log")),
@@ -86,7 +86,7 @@ func (t *btTableProd) getLogData(c context.Context, rk *rowKey, limit int, keysO
 		ropts = append(ropts, bigtable.RowFilter(bigtable.StripValueFilter()))
 	}
 	if limit > 0 {
-		ropts = append(ropts, bigtable.LimitRows(int64(limit)))
+		ropts = append(ropts, bigtable.LimitRows(limit))
 	}
 
 	// This will limit the range to the immediate row key ("ASDF~INDEX") to