tools/metrics/histograms/histograms.xml

Index: tools/metrics/histograms/histograms.xml
diff --git a/tools/metrics/histograms/histograms.xml b/tools/metrics/histograms/histograms.xml
index 75ddd67bacae57432ea7a669d05c4c9851ccf6ab..0c301efe5da8334ec432c60cc429f0a9e6ea67ac 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -9484,6 +9484,36 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
   </summary>
 </histogram>
 
+<histogram name="Cryptohome.DircryptoMigrationFailedErrorCode"
+    enum="PlatformFileError">
+  <owner>kinaba@chromium.org</owner>
+  <summary>
+    The error code of file operation by which the user home directory migration
+    from ecryptfs to ext4-crypto has failed. This is logged once the migration
+    encounters a file I/O error.
+  </summary>
+</histogram>
+
+<histogram name="Cryptohome.DircryptoMigrationFailedOperationType"
+    enum="DircryptoMigrationFailedOperationType">
+  <owner>kinaba@chromium.org</owner>
+  <summary>
+    The type of file operation at which the user home directory migration from
+    ecryptfs to ext4-crypto has failed. This is logged once the migration
+    encounters a file I/O error.
+  </summary>
+</histogram>
+
+<histogram name="Cryptohome.DircryptoMigrationFailedPathType"
+    enum="DircryptoMigrationFailedPathType">
+  <owner>kinaba@chromium.org</owner>
+  <summary>
+    The category of the path where the user home directory migration from
+    ecryptfs to ext4-crypto has failed. This is logged once the migration
+    encounters a file I/O error.
+  </summary>
+</histogram>
+
 <histogram name="Cryptohome.DircryptoMigrationStartStatus"
     enum="DircryptoMigrationStartStatus">
   <owner>dspaid@chromium.org</owner>
@@ -89271,10 +89301,43 @@ http://cs/file:chrome/histograms.xml - but prefer this file for new entries.
 </enum>
 
 <enum name="DircryptoMigrationEndStatus" type="int">
-  <int value="1" label="New migration failed"/>
+  <int value="1" label="New migration failed (generic failure)"/>
   <int value="2" label="New migration succeeded"/>
-  <int value="3" label="Resumed migration failed"/>
+  <int value="3" label="Resumed migration failed (generic failure)"/>
   <int value="4" label="Resumed migration succeeded"/>
+  <int value="5" label="New migration failed (low disk space)"/>
+  <int value="6" label="Resumed migration failed (low disk space)"/>
+  <int value="7" label="New migration failed (file error)"/>
+  <int value="8" label="Resumed migration failed (file error)"/>
+  <int value="9" label="New migration failed (file error EIO on open)"/>
+  <int value="10" label="Resumed migration failed (file error EIO on open)"/>
+</enum>
+
+<enum name="DircryptoMigrationFailedOperationType" type="int">
+  <int value="1" label="Other"/>
+  <int value="2" label="open(src_file)"/>
+  <int value="3" label="open(dest_file)"/>
+  <int value="4" label="symlink"/>
+  <int value="5" label="delete"/>
+  <int value="6" label="get-attribute"/>
+  <int value="7" label="mkdir"/>
+  <int value="8" label="readlink"/>
+  <int value="9" label="seek"/>
+  <int value="10" label="sendfile"/>
+  <int value="11" label="set-attribute"/>
+  <int value="12" label="stat"/>
+  <int value="13" label="sync"/>
+  <int value="14" label="truncate"/>
+  <int value="15" label="non fatal open(src_file)"/>
+</enum>
+
+<enum name="DircryptoMigrationFailedPathType" type="int">
+  <int value="1" label="Other"/>
+  <int value="2" label="Android Other"/>
+  <int value="3" label="Android Cache"/>
+  <int value="4" label="Downloads"/>
+  <int value="5" label="Cache"/>
+  <int value="6" label="GCache (Google Drive Cache)"/>
 </enum>
 
 <enum name="DircryptoMigrationStartStatus" type="int">