crostini: Add two missing entries to CrostiniSetupResult in enums.xml

Bug: None
Test: CQ
Change-Id: I38a6cf6837bda5c902d36240fa17d501806cf424
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1989308
Commit-Queue: David Munro <davidmunro@google.com>
Commit-Queue: Julian Watson <juwa@google.com>
Auto-Submit: David Munro <davidmunro@google.com>
Reviewed-by: Julian Watson <juwa@google.com>
Cr-Commit-Position: refs/heads/master@{#728820}

chrome/browser/chromeos/crostini/crostini_installer.h

@@ -29,6 +29,7 @@ class CrostiniInstaller : public KeyedService,
  public:
   // These values are persisted to logs. Entries should not be renumbered and
   // numeric values should never be reused.
+  // When you add entries to this enum don't forget to update enums.xml
   enum class SetupResult {
     kNotStarted = 0,
     // kUserCancelled = 1,

tools/metrics/histograms/enums.xml

@@ -12477,6 +12477,8 @@ to ensure that the crash string is shown properly on the user-facing crash UI.
   <int value="22" label="Insufficient Disk Space"/>
   <int value="23" label="Error Configuring Container"/>
   <int value="24" label="User Cancelled While Configuring Container"/>
+  <int value="25" label="Error Creating Container"/>
+  <int value="26" label="Bug - Failed without capturing error code"/>
 </enum>
 
 <enum name="CrostiniUISurface">