function startProcessor(i, renderedRowsToProcess) {
      // Get the processor at 'i'
      var processor = self.rowsProcessors[i].processor;

      // Call the processor, passing in the rows to process and the current columns
      //   (note: it's wrapped in $q.when() in case the processor does not return a promise)
      return $q.when( processor.call(self, renderedRowsToProcess, self.columns) )
        .then(function handleProcessedRows(processedRows) {
          // Check for errors
          if (!processedRows) {
            throw "Processor at index " + i + " did not return a set of renderable rows";
          }

          if (!angular.isArray(processedRows)) {
            throw "Processor at index " + i + " did not return an array";
          }

          // Processor is done, increment the counter
          i++;

          // If we're not done with the processors, call the next one
          if (i <= self.rowsProcessors.length - 1) {
            return startProcessor(i, processedRows);
          }
          // We're done! Resolve the 'finished' promise
          else {
            finished.resolve(processedRows);
          }
        }).catch(function(error) {
          throw error;
        });
    }
Private Undocumented Method
@name processRowsProcessors
@methodOf ui.grid.class:Grid
@param {Array[GridRow]} renderableRows The array of "renderable" rows
@description Run all the registered rows processors on the array of renderable rows