crostini: Add a missing value to CrostiniImportContainerResult

Bug: None
Test: None
Change-Id: I70aa59a19df3992600237ed5f796f14f0f00bea3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2409424
Commit-Queue: David Munro <davidmunro@google.com>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Auto-Submit: David Munro <davidmunro@google.com>
Reviewed-by: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#806977}

chrome/browser/chromeos/crostini/crostini_export_import.h

@@ -30,8 +30,8 @@ enum class ImportContainerResult;
 
 enum class ExportImportType { EXPORT, IMPORT };
 
-// ExportContainerResult and ImportContainerResult are used for UMA.  Adding new
-// fields is OK, but do not delete or renumber.
+// ExportContainerResult is used for UMA, if you update this make sure to update
+// CrostiniExportContainerResult in enums.xml
 enum class ExportContainerResult {
   kSuccess = 0,
   kFailed = 1,
@@ -40,6 +40,8 @@ enum class ExportContainerResult {
   kMaxValue = kFailedVmStarted,
 };
 
+// ImportContainerResult is used for UMA, if you update this make sure to update
+// CrostiniImportContainerResult in enums.xml
 enum class ImportContainerResult {
   kSuccess = 0,
   kFailed = 1,

tools/metrics/histograms/enums.xml

@@ -14048,6 +14048,7 @@ metrics consent we also won't be able to send UMA metrics. -->
   <int value="2" label="Failed VM Stopped"/>
   <int value="3" label="Failed VM Started"/>
   <int value="4" label="Failed Architecture mismatch"/>
+  <int value="5" label="Failed Insufficient Space"/>
 </enum>
 
 <enum name="CrostiniResult">