Bug 1305801 - Part 2: Add telemetry for variable-length prefix set. r=francois

MozReview-Commit-ID: 8SebDJ8ZeKn

toolkit/components/url-classifier/VariableLengthPrefixSet.cpp

@@ -9,6 +9,7 @@
 #include "nsPrintfCString.h"
 #include "nsThreadUtils.h"
 #include "mozilla/EndianUtils.h"
+#include "mozilla/Telemetry.h"
 #include "mozilla/Unused.h"
 #include <algorithm>
 
@@ -208,6 +209,8 @@ VariableLengthPrefixSet::LoadFromFile(nsIFile* aFile)
 
   NS_ENSURE_ARG_POINTER(aFile);
 
+  Telemetry::AutoTimer<Telemetry::URLCLASSIFIER_VLPS_FILELOAD_TIME> timer;
+
   nsCOMPtr<nsIInputStream> localInFile;
   nsresult rv = NS_NewLocalFileInputStream(getter_AddRefs(localInFile), aFile,
                                            PR_RDONLY | nsIFile::OS_READAHEAD);
@@ -254,6 +257,7 @@ VariableLengthPrefixSet::StoreToFile(nsIFile* aFile)
   // Preallocate the file storage
   {
     nsCOMPtr<nsIFileOutputStream> fos(do_QueryInterface(localOutFile));
+    Telemetry::AutoTimer<Telemetry::URLCLASSIFIER_VLPS_FALLOCATE_TIME> timer;
 
     fileSize += mFixedPrefixSet->CalculatePreallocateSize();
     fileSize += CalculatePreallocateSize();