<!--
Copyright 2023 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<!--
This file describes the enumerations referenced by entries in histograms.xml for
this directory. Some enums may instead be listed in the central enums.xml file
at src/tools/metrics/histograms/enums.xml when multiple files use them.
For best practices on writing enumerations descriptions, see
https://chromium.googlesource.com/chromium/src.git/+/HEAD/tools/metrics/histograms/README.md#Enum-Histograms
Please follow the instructions in the OWNERS file in this directory to find a
reviewer. If no OWNERS file exists, please consider signing up at
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-->
<histogram-configuration>
<!-- Enum types -->
<enums>
<enum name="ActionUponResourceRequest">
<int value="0" label="Load resource"/>
<int value="1" label="Revalidate resource"/>
<int value="2" label="Use resource from cache"/>
</enum>
<enum name="BooleanStreamed">
<int value="0" label="Not streamed"/>
<int value="1" label="Streamed"/>
</enum>
<enum name="FramebustInterventionOutcome">
<int value="0" label="Accepted"/>
<int value="1" label="Declined and navigated"/>
</enum>
<enum name="IDBAction">
<int value="0" label="BackingStoreOpenAttempt">
Recorded when the there is an attempt to open the backing store from disk,
where it wasn't previously opened. This can happen during the API calls
IDBFactory::Open, GetDatabaseNames, GetDatabaseInfo, and DeleteDatabase.
</int>
<int value="1" label="DatabaseDeleteAttempt">
Recorded when there is an attempt to delete the database using the
IDBFactory::DeleteDatabase API.
</int>
</enum>
<enum name="IDBException">
<int value="0" label="Unknown error"/>
<int value="1" label="Constraint error"/>
<int value="2" label="Data error"/>
<int value="3" label="Version error"/>
<int value="4" label="Abort error"/>
<int value="5" label="Quota error"/>
<int value="6" label="Timeout error"/>
</enum>
<enum name="IDBLevelDBBackingStoreInternalErrorType">
<int value="0" label="IDBLevelDBBackingStoreReadError">
IndexedDB encountered an error attempting to read or decode a value from the
leveldb backing store, indicative of corruption or I/O error. Unused as of
M26.
</int>
<int value="1" label="IDBLevelDBBackingStoreWriteError">
IndexeDB encountered an error attempting to write or commit a value to the
leveldb backing store, indicative of I/O error. Unused as of M26.
</int>
<int value="2" label="IDBLevelDBBackingStoreConsistencyError">
IndexedDB encountered a consistency error in the leveldb backing store,
indicative of corruption or an coding error. Unused as of M26.
</int>
<int value="3" label="FindKeyInIndex"/>
<int value="4" label="GetIDBDatabaseMetaData"/>
<int value="5" label="GetIndexes"/>
<int value="6" label="GetKeyGeneratorCurrentNumber"/>
<int value="7" label="GetObjectStores"/>
<int value="8" label="GetRecord"/>
<int value="9" label="KeyExistsInObjectStore"/>
<int value="10" label="LoadCurrentRow"/>
<int value="11" label="SetupMetadata"/>
<int value="12" label="GetPrimaryKeyViaIndex"/>
<int value="13" label="KeyExistsInIndex"/>
<int value="14" label="VersionExists"/>
<int value="15" label="DeleteObjectStore"/>
<int value="16" label="SetMaxObjectStoreId"/>
<int value="17" label="SetMaxIndexId"/>
<int value="18" label="GetNewDatabaseId"/>
<int value="19" label="GetNewVersionNumber"/>
<int value="20" label="CreateIDBDatabaseMetaData"/>
<int value="21" label="DeleteDatabase"/>
<int value="22" label="TransactionCommit"/>
<int value="23" label="GetDatabaseNames"/>
<int value="24" label="DeleteIndex"/>
<int value="25" label="ClearObjectStore"/>
<int value="26" label="ReadBlobJournal"/>
<int value="27" label="DecodeBlobJournal"/>
<int value="28" label="GetBlobKeyGeneratorCurrentNumber"/>
<int value="29" label="GetBlobInfoForRecord"/>
<int value="30" label="UpgradingSchemaWithCorruptedBlobs"/>
</enum>
<enum name="IDBLevelDBBackingStoreOpenResult">
<int value="0" label="OpenMemorySuccess (Deprecated)">
An in-memory backing store was opened successfully.
</int>
<int value="1" label="OpenSuccess">
An on-disk backing store was opened successfully.
</int>
<int value="2" label="OpenFailedDirectory">
An on-disk backing store could not be opened or created because the
directory could not be opened or created. Cleanup will not be attempted.
</int>
<int value="3" label="OpenFailedUnknownSchema">
An on-disk backing store was opened but had an unknown schema version, due
to corruption or reverting to a previous version of Chrome. Cleanup will be
attempted.
</int>
<int value="4" label="OpenCleanupDestroyFailed">
An on-disk backing store failed to open; cleanup was attempted but the
database could not be destroyed.
</int>
<int value="5" label="OpenCleanupReopenFailed">
An on-disk backing store failed to open; cleanup was attempted but
re-opening the database failed.
</int>
<int value="6" label="OpenCleanupReopenSuccess">
An on-disk backing store failed to open; cleanup was attempted and the
database was then opened successfully.
</int>
<int value="7" label="OpenFailedIOErrCheckingSchema">
An on-disk backing store was opened but leveldb failed to read the schema
version.
</int>
<int value="8" label="OpenFailedUnknownErr (Deprecated)"/>
<int value="9" label="OpenMemoryFailed (Deprecated)">
An in-memory backing store failed to open.
</int>
<int value="10" label="OpenNonASCII">
A database with non-ascii characters in its path was opened (with either
success or failure).
</int>
<int value="11" label="OpenAttemptDiskFull">
An open failed on a machine with a full disk. No cleanup was attempted.
</int>
<int value="12" label="OpenAttemptPathTooLong">
Open failed because either a path component or the overall path was too
long.
</int>
<int value="13" label="OpenAttemptNoRecovery">
An open attempt failed with an I/O error that doesn't necessitate a recovery
attempt.
</int>
<int value="14" label="OpenAttemptPriorCorruption">
The corrupted open database was deleted.
</int>
<int value="15" label="OpenCleanupBlobJournalFailed">
Open failed because the blob journal could not be cleaned up.
</int>
<int value="16" label="OpenFailedMetadataSetup">
Open failed because the backing store's metadata could not be set up.
</int>
</enum>
<enum name="LevelDBCorruptionTypes">
<int value="0" label="other"/>
<int value="1" label="missing files"/>
<int value="2" label="log record too small"/>
<int value="3" label="corrupted internal key"/>
<int value="4" label="partial record"/>
<int value="5" label="missing start of fragmented record"/>
<int value="6" label="error in middle of record"/>
<int value="7" label="unknown record type"/>
<int value="8" label="truncated record at end"/>
<int value="9" label="bad record length"/>
<int value="10" label="VersionEdit"/>
<int value="11" label="FileReader invoked with unexpected value"/>
<int value="12" label="corrupted key"/>
<int value="13" label="CURRENT file does not end with newline"/>
<int value="14" label="no meta-nextfile entry"/>
<int value="15" label="no meta-lognumber entry"/>
<int value="16" label="no last-sequence-number entry"/>
<int value="17" label="malformed WriteBatch"/>
<int value="18" label="bad WriteBatch Put"/>
<int value="19" label="bad WriteBatch Delete"/>
<int value="20" label="unknown WriteBatch tag"/>
<int value="21" label="WriteBatch has wrong count"/>
<int value="22" label="bad entry in block"/>
<int value="23" label="bad block contents"/>
<int value="24" label="bad block handle"/>
<int value="25" label="truncated block read"/>
<int value="26" label="block checksum mismatch"/>
<int value="27" label="checksum mismatch"/>
<int value="28" label="corrupted compressed block contents"/>
<int value="29" label="bad block type"/>
<int value="30" label="bad magic number"/>
<int value="31" label="file is too short"/>
</enum>
<enum name="LevelDBErrorTypes">
<int value="0" label="NotFound"/>
<int value="1" label="Corruption"/>
<int value="2" label="IOError"/>
<int value="3" label="Other"/>
</enum>
<enum name="ListItemPosition">
<int value="0" label="Only item"/>
<int value="1" label="First item"/>
<int value="2" label="Any middle item"/>
<int value="3" label="Last item"/>
</enum>
<enum name="MappedEditingCommands">
<!-- Generated from third_party/WebKit/Source/core/editing/EditorCommand.cpp -->
<int value="1" label="AlignJustified"/>
<int value="2" label="AlignLeft"/>
<int value="3" label="AlignRight"/>
<int value="4" label="BackColor"/>
<int value="5" label="BackwardDelete"/>
<int value="6" label="Bold"/>
<int value="7" label="Copy"/>
<int value="8" label="CreateLink"/>
<int value="9" label="Cut"/>
<int value="10" label="DefaultParagraphSeparator"/>
<int value="11" label="Delete"/>
<int value="12" label="DeleteBackward"/>
<int value="13" label="DeleteBackwardByDecomposingPreviousCharacter"/>
<int value="14" label="DeleteForward"/>
<int value="15" label="DeleteToBeginningOfLine"/>
<int value="16" label="DeleteToBeginningOfParagraph"/>
<int value="17" label="DeleteToEndOfLine"/>
<int value="18" label="DeleteToEndOfParagraph"/>
<int value="19" label="DeleteToMark"/>
<int value="20" label="DeleteWordBackward"/>
<int value="21" label="DeleteWordForward"/>
<int value="22" label="FindString"/>
<int value="23" label="FontName"/>
<int value="24" label="FontSize"/>
<int value="25" label="FontSizeDelta"/>
<int value="26" label="ForeColor"/>
<int value="27" label="FormatBlock"/>
<int value="28" label="ForwardDelete"/>
<int value="29" label="HiliteColor"/>
<int value="30" label="IgnoreSpelling"/>
<int value="31" label="Indent"/>
<int value="32" label="InsertBacktab"/>
<int value="33" label="InsertHTML"/>
<int value="34" label="InsertHorizontalRule"/>
<int value="35" label="InsertImage"/>
<int value="36" label="InsertLineBreak"/>
<int value="37" label="InsertNewline"/>
<int value="38" label="InsertNewlineInQuotedContent"/>
<int value="39" label="InsertOrderedList"/>
<int value="40" label="InsertParagraph"/>
<int value="41" label="InsertTab"/>
<int value="42" label="InsertText"/>
<int value="43" label="InsertUnorderedList"/>
<int value="44" label="Italic"/>
<int value="45" label="JustifyCenter"/>
<int value="46" label="JustifyFull"/>
<int value="47" label="JustifyLeft"/>
<int value="48" label="JustifyNone"/>
<int value="49" label="JustifyRight"/>
<int value="50" label="MakeTextWritingDirectionLeftToRight"/>
<int value="51" label="MakeTextWritingDirectionNatural"/>
<int value="52" label="MakeTextWritingDirectionRightToLeft"/>
<int value="53" label="MoveBackward"/>
<int value="54" label="MoveBackwardAndModifySelection"/>
<int value="55" label="MoveDown"/>
<int value="56" label="MoveDownAndModifySelection"/>
<int value="57" label="MoveForward"/>
<int value="58" label="MoveForwardAndModifySelection"/>
<int value="59" label="MoveLeft"/>
<int value="60" label="MoveLeftAndModifySelection"/>
<int value="61" label="MovePageDown"/>
<int value="62" label="MovePageDownAndModifySelection"/>
<int value="63" label="MovePageUp"/>
<int value="64" label="MovePageUpAndModifySelection"/>
<int value="65" label="MoveParagraphBackward"/>
<int value="66" label="MoveParagraphBackwardAndModifySelection"/>
<int value="67" label="MoveParagraphForward"/>
<int value="68" label="MoveParagraphForwardAndModifySelection"/>
<int value="69" label="MoveRight"/>
<int value="70" label="MoveRightAndModifySelection"/>
<int value="71" label="MoveToBeginningOfDocument"/>
<int value="72" label="MoveToBeginningOfDocumentAndModifySelection"/>
<int value="73" label="MoveToBeginningOfLine"/>
<int value="74" label="MoveToBeginningOfLineAndModifySelection"/>
<int value="75" label="MoveToBeginningOfParagraph"/>
<int value="76" label="MoveToBeginningOfParagraphAndModifySelection"/>
<int value="77" label="MoveToBeginningOfSentence"/>
<int value="78" label="MoveToBeginningOfSentenceAndModifySelection"/>
<int value="79" label="MoveToEndOfDocument"/>
<int value="80" label="MoveToEndOfDocumentAndModifySelection"/>
<int value="81" label="MoveToEndOfLine"/>
<int value="82" label="MoveToEndOfLineAndModifySelection"/>
<int value="83" label="MoveToEndOfParagraph"/>
<int value="84" label="MoveToEndOfParagraphAndModifySelection"/>
<int value="85" label="MoveToEndOfSentence"/>
<int value="86" label="MoveToEndOfSentenceAndModifySelection"/>
<int value="87" label="MoveToLeftEndOfLine"/>
<int value="88" label="MoveToLeftEndOfLineAndModifySelection"/>
<int value="89" label="MoveToRightEndOfLine"/>
<int value="90" label="MoveToRightEndOfLineAndModifySelection"/>
<int value="91" label="MoveUp"/>
<int value="92" label="MoveUpAndModifySelection"/>
<int value="93" label="MoveWordBackward"/>
<int value="94" label="MoveWordBackwardAndModifySelection"/>
<int value="95" label="MoveWordForward"/>
<int value="96" label="MoveWordForwardAndModifySelection"/>
<int value="97" label="MoveWordLeft"/>
<int value="98" label="MoveWordLeftAndModifySelection"/>
<int value="99" label="MoveWordRight"/>
<int value="100" label="MoveWordRightAndModifySelection"/>
<int value="101" label="Outdent"/>
<int value="102" label="OverWrite"/>
<int value="103" label="Paste"/>
<int value="104" label="PasteAndMatchStyle"/>
<int value="105" label="PasteGlobalSelection"/>
<int value="106" label="Print"/>
<int value="107" label="Redo"/>
<int value="108" label="RemoveFormat"/>
<int value="109" label="ScrollPageBackward"/>
<int value="110" label="ScrollPageForward"/>
<int value="111" label="ScrollLineUp"/>
<int value="112" label="ScrollLineDown"/>
<int value="113" label="ScrollToBeginningOfDocument"/>
<int value="114" label="ScrollToEndOfDocument"/>
<int value="115" label="SelectAll"/>
<int value="116" label="SelectLine"/>
<int value="117" label="SelectParagraph"/>
<int value="118" label="SelectSentence"/>
<int value="119" label="SelectToMark"/>
<int value="120" label="SelectWord"/>
<int value="121" label="SetMark"/>
<int value="122" label="Strikethrough"/>
<int value="123" label="StyleWithCSS"/>
<int value="124" label="Subscript"/>
<int value="125" label="Superscript"/>
<int value="126" label="SwapWithMark"/>
<int value="127" label="ToggleBold"/>
<int value="128" label="ToggleItalic"/>
<int value="129" label="ToggleUnderline"/>
<int value="130" label="Transpose"/>
<int value="131" label="Underline"/>
<int value="132" label="Undo"/>
<int value="133" label="Unlink"/>
<int value="134" label="Unscript"/>
<int value="135" label="Unselect"/>
<int value="136" label="UseCSS"/>
<int value="137" label="Yank"/>
<int value="138" label="YankAndSelect"/>
<int value="139" label="AlignCenter"/>
</enum>
<enum name="NotStreamingReason">
<int value="0" label="DEPRECATED: Already loaded"/>
<int value="1" label="Not HTTP"/>
<int value="2" label="Revalidation"/>
<int value="3" label="Context not valid"/>
<int value="4" label="Encoding not supported"/>
<int value="5" label="Thread busy"/>
<int value="6" label="V8 cannot stream"/>
<int value="7" label="Script too small"/>
<int value="8" label="No resource buffer"/>
<int value="9" label="Code-cache available for script"/>
<int value="10" label="Streamer not ready when GetSource called"/>
<int value="11" label="Internal script"/>
<int value="12" label="Streaming was never started"/>
<int value="13" label="An error had occurred before GetSource was called"/>
<int value="14" label="Streaming was disabled"/>
<int value="15" label="Second use of a script resource"/>
<int value="16" label="Worker script"/>
<int value="17" label="Module script"/>
<int value="18" label="No data pipe"/>
<int value="19" label="Loading cancelled"/>
<int value="20" label="Non JavaScript module"/>
<int value="21" label="Disabled by feature list"/>
<int value="22" label="Script type missmatch"/>
<int value="23" label="BackgroundResponseProcessor will be used"/>
<int value="24" label="Non JavaScript module (background)"/>
<int value="25" label="Code-cache available for script (background)"/>
<int value="26" label="Script too small (background)"/>
<int value="27" label="An error had occurred (background)"/>
<int value="28" label="Encoding not supported (background)"/>
</enum>
<enum name="ResourceHasClient">
<int value="0" label="No client"/>
<int value="1" label="Has client"/>
</enum>
<enum name="V8CodeCacheGetMetadataType">
<int value="0" label="None"/>
<int value="1" label="Hot timestamp"/>
<int value="2" label="Cold timestamp"/>
<int value="3" label="Local compile hints with hot timestamp"/>
<int value="4" label="Local compile hints with cold timestamp"/>
<int value="5" label="Code cache"/>
</enum>
<enum name="V8CodeCacheSetMetadataType">
<int value="0" label="Timestamp"/>
<int value="1" label="Local compile hints at FMP"/>
<int value="2" label="Local compile hints at interactive"/>
<int value="3" label="Code cache"/>
</enum>
<enum name="V8CompileHintsModelQuality">
<int value="0" label="No model"/>
<int value="1" label="Bad model"/>
<int value="2" label="Good model"/>
</enum>
<enum name="V8CompileHintsStatus">
<int value="0"
label="Consume local compile hints, classic script, no streaming"/>
<int value="1" label="Consume local compile hints, module, no streaming"/>
<int value="2"
label="Consume crowdsourced compile hints, classic script, no streaming"/>
<int value="3"
label="Consume crowdsourced compile hints, module, no streaming"/>
<int value="4" label="Produce compile hints, classic script, no streaming"/>
<int value="5" label="Produce compile hints, module, no streaming"/>
<int value="6" label="Consume code cache, classic script, no streaming"/>
<int value="7" label="Consume code cache, module, no streaming"/>
<int value="8" label="Consume local compile hints, streaming"/>
<int value="9" label="Consume crowdsourced compile hints streaming"/>
<int value="10" label="Produce compile hints, streaming"/>
<int value="11" label="No compile hints, classic script, no streaming"/>
<int value="12" label="No compile hints, module, no streaming"/>
<int value="13" label="No compile hints, streaming"/>
</enum>
<enum name="V8LocalCompileHintsGenerated">
<int value="0" label="Non-final"/>
<int value="1" label="Final"/>
</enum>
<enum name="WebsiteStateAtFullscreenRequest">
<int value="0" label="Not allowlisted, not visited"/>
<int value="1" label="Not allowlisted, visited"/>
<int value="2" label="Not allowlisted, visit state unknown"/>
<int value="3" label="Allowlisted, not visited"/>
<int value="4" label="Allowlisted, visited"/>
<int value="5" label="Allowlisted, visit state unknown"/>
<int value="6" label="Allowlist state unknown, not visited"/>
<int value="7" label="Allowlist state unknown, visited"/>
<int value="8" label="Allowlist state unknown, visit state unknown"/>
</enum>
</enums>
</histogram-configuration>
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