Deeper histogram for SQLITE_IOERR.

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 6df77a43df3fcd0532747770913cf5fdca9d4645..febaa091a484a0e3310ad3c345c56f6864da129d 100644
--- a/tools/metrics/histograms/histograms.xml
+++ b/tools/metrics/histograms/histograms.xml
@@ -5729,6 +5729,50 @@ other types of suffix sets.
   </summary>
 </histogram>
 
+<histogram name="Sqlite.AppCache.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for the appcache db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Cookie.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite the cookie db.</summary>
+</histogram>
+
+<histogram name="Sqlite.DatabaseTracker.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite the websqldb tracker db.</summary>
+</histogram>
+
+<histogram name="Sqlite.DomStorageDatabase.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for the domstorage db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for all databases.</summary>
+</histogram>
+
+<histogram name="Sqlite.Error.IOERR" enum="SqliteIOERRCode">

[erikwright (departed), 2013/04/26 17:27:40]

I assume that, other than this one, the rest are moved verbatim?

[Scott Hess - ex-Googler, 2013/04/26 17:50:54]

Apologies - I think I made a baselining mistake, all of the others should have
already been checked in.  Let me try again.

+  <summary>Error codes returned by sqlite for all databases.</summary>
+</histogram>
+
+<histogram name="Sqlite.History.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for the history db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Quota.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for the quota db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Text.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite the full text db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Thumbnail.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite for the thumbnail db.</summary>
+</histogram>
+
+<histogram name="Sqlite.Web.Error" enum="SqliteErrorCode">
+  <summary>Error codes returned by sqlite the web db.</summary>
+</histogram>
+
 <histogram name="Variations.DisabledNoEntropyProvider" enum="BooleanHit">
   <summary>
     A count of the number of times we hit the code where a field trial is
@@ -9065,6 +9109,104 @@ other types of suffix sets.
   <int value="1" label="sent"/>
 </enum>
 
+<enum name="SqliteErrorCode" type="int">
+  <summary>Error codes returned by SQLite - see sqlite.h</summary>

[erikwright (departed), 2013/04/26 17:27:40]

I assume this enum is moved verbatim?

+  <int value="0" label="SQLITE_OK">Successful result</int>
+  <int value="1" label="SQLITE_ERROR">SQL error or missing database</int>
+  <int value="2" label="SQLITE_INTERNAL">
+    NOT USED. Internal logic error in SQLite
+  </int>
+  <int value="3" label="SQLITE_PERM">Access permission denied</int>
+  <int value="4" label="SQLITE_ABORT">Callback routine requested an abort</int>
+  <int value="5" label="SQLITE_BUSY">The database file is locked</int>
+  <int value="6" label="SQLITE_LOCKED">A table in the database is locked</int>
+  <int value="7" label="SQLITE_NOMEM">A malloc() failed</int>
+  <int value="8" label="SQLITE_READONLY">
+    Attempt to write a readonly database
+  </int>
+  <int value="9" label="SQLITE_INTERRUPT">
+    Operation terminated by sqlite3_interrupt()
+  </int>
+  <int value="10" label="SQLITE_IOERR">
+    Some kind of disk I/O error occurred
+  </int>
+  <int value="11" label="SQLITE_CORRUPT">
+    The database disk image is malformed
+  </int>
+  <int value="12" label="SQLITE_NOTFOUND">
+    NOT USED. Table or record not found
+  </int>
+  <int value="13" label="SQLITE_FULL">
+    Insertion failed because database is full
+  </int>
+  <int value="14" label="SQLITE_CANTOPEN">Unable to open the database file</int>
+  <int value="15" label="SQLITE_PROTOCOL">
+    NOT USED. Database lock protocol error
+  </int>
+  <int value="16" label="SQLITE_EMPTY">Database is empty</int>
+  <int value="17" label="SQLITE_SCHEMA">The database schema changed</int>
+  <int value="18" label="SQLITE_TOOBIG">String or BLOB exceeds size limit</int>
+  <int value="19" label="SQLITE_CONSTRAINT">
+    Abort due to contraint violation
+  </int>
+  <int value="20" label="SQLITE_MISMATCH">Data type mismatch</int>
+  <int value="21" label="SQLITE_MISUSE">Library used incorrectly</int>
+  <int value="22" label="SQLITE_NOLFS">
+    Uses OS features not supported on host
+  </int>
+  <int value="23" label="SQLITE_AUTH">Authorization denied</int>
+  <int value="24" label="SQLITE_FORMAT">Auxiliary database format error</int>
+  <int value="25" label="SQLITE_RANGE">
+    2nd parameter to sqlite3_bind out of range
+  </int>
+  <int value="26" label="SQLITE_NOTADB">
+    File opened that is not a database file
+  </int>
+  <int value="100" label="SQLITE_ROW">sqlite3_step() has another row ready</int>
+  <int value="101" label="SQLITE_DONE">
+    sqlite3_step() has finished executing
+  </int>
+</enum>
+
+<enum name="SqliteIOERRCode" type="int">
+  <summary>Extended error codes returned by SQLite - see sqlite.h</summary>
+  <int value="0" label="SQLITE_IOERR">No extended code given</int>
+  <int value="1" label="SQLITE_IOERR_READ">Error reading from file</int>
+  <int value="2" label="SQLITE_IOERR_SHORT_READ">Short read from file</int>
+  <int value="3" label="SQLITE_IOERR_WRITE">
+    Error writing to file (other than SQLITE_FULL)
+  </int>
+  <int value="4" label="SQLITE_IOERR_FSYNC">Error syncing to disk</int>
+  <int value="5" label="SQLITE_IOERR_DIR_FSYNC">
+    Error syncing directory changes to disk
+  </int>
+  <int value="6" label="SQLITE_IOERR_TRUNCATE">Error truncating file</int>
+  <int value="7" label="SQLITE_IOERR_FSTAT">Error reading file metadata</int>
+  <int value="8" label="SQLITE_IOERR_UNLOCK">Error unlocking file</int>
+  <int value="9" label="SQLITE_IOERR_RDLOCK">
+    Error getting read lock - should not be possible
+  </int>
+  <int value="10" label="SQLITE_IOERR_DELETE">Error deleting file</int>
+  <int value="11" label="SQLITE_IOERR_BLOCKED">
+    Deadlock due to other process access to SQLite files
+  </int>
+  <int value="12" label="SQLITE_IOERR_NOMEM">Error mapping shared memory</int>
+  <int value="13" label="SQLITE_IOERR_ACCESS">
+    Error getting file attributes (other than not found)
+  </int>
+  <int value="14" label="SQLITE_IOERR_CHECKRESERVEDLOCK">
+    Error while querying lock status
+  </int>
+  <int value="15" label="SQLITE_IOERR_LOCK">Error acquiring lock</int>
+  <int value="16" label="SQLITE_IOERR_CLOSE">Error closing file</int>
+  <int value="17" label="SQLITE_IOERR_DIR_CLOSE">Unused</int>
+  <int value="18" label="SQLITE_IOERR_SHMOPEN">Error mmapping file</int>
+  <int value="19" label="SQLITE_IOERR_SHMSIZE">
+    Error in stat while mmapping file
+  </int>
+  <int value="20" label="SQLITE_IOERR_SHMLOCK">Unused</int>
+</enum>
+
 <enum name="TcpSocketStatus" type="int">
   <int value="0" label="Unknown"/>
   <int value="1" label="Fast Connection Return"/>