Add additional histograms with suffixes to ImportantFileWriter.

components/feedback/feedback_report.cc

Index: components/feedback/feedback_report.cc
diff --git a/components/feedback/feedback_report.cc b/components/feedback/feedback_report.cc
index fa0e463163372b881e873abf114627735b6472fb..bdbd4695f675ee915d7028dc2220b821cfcfc7c9 100644
--- a/components/feedback/feedback_report.cc
+++ b/components/feedback/feedback_report.cc
@@ -29,7 +29,7 @@ void WriteReportOnBlockingPool(const base::FilePath reports_path,
     if (!base::CreateDirectoryAndGetError(reports_path, &error))
       return;
   }
-  base::ImportantFileWriter::WriteFileAtomically(file, data);
+  base::ImportantFileWriter::WriteFileAtomically(file, data, "FeedbackReport");
 }
 
 }  // namespace