= List of ENABLE flags =

=== 3D_PLUGIN ===

=== 3D_RENDERING ===

=== 8BIT_TEXTRUN ===
Turns on code to create 8 bit TextRun's.  The features requires that text rendering code can handle both 8 and 16 bit TextRun's.

=== ACCELERATED_2D_CANVAS ===

=== ACCELERATED_OVERFLOW_SCROLLING ===

=== BATTERY_STATUS ===
[http://www.w3.org/TR/battery-status/ Battery Status API]

=== BLOB ===

=== CANVAS_PATH ===

=== CALENDAR_PICKER ===
Calendar picker UI built in WebCore.  It's implemented with HTML+JavaScript, and supports type=date, type=datetime, type=datetime-local, type=month, and type=week. This feature requires ENABLE_PAGE_POPUP.

=== CHANNEL_MESSAGING ===

=== CONTEXT_MENUS ===

=== CSP_NEXT ===
[https://dvcs.w3.org/hg/content-security-policy/raw-file/tip/csp-specification.dev.html Content-Security-Policy 1.1]. 
[http://lists.webkit.org/pipermail/webkit-dev/2012-May/020559.html Announcement].
[http://webkit.org/b/85558].

=== CSS_BOX_DECORATION_BREAK ===
box-decoration-break CSS property. [http://webkit.org/b/27576].

=== CSS_COMPOSITING ===
[https://dvcs.w3.org/hg/FXTF/rawfile/tip/compositing/index.html Compositing and Blending].
[http://lists.webkit.org/pipermail/webkit-dev/2012-July/021558.html Announcement].
[http://webkit.org/b/91908].
Under development.


=== CSS_FILTERS ===

=== CSS3_TEXT ===
[http://dev.w3.org/csswg/css3-text/#decoration CSS3 Text Decoration specification].
[http://lists.webkit.org/pipermail/webkit-dev/2012-August/021870.html Announcement].
[https://webkit.org/b/58491 Master bug]
Under development.

[http://dev.w3.org/csswg/css3-text/#text-align-last CSS3 text-align-last specification]
[http://lists.webkit.org/pipermail/webkit-dev/2012-October/022529.html Announcement].
[https://webkit.org/b/76173 Master bug]
Under development.

[http://dev.w3.org/csswg/css3-text/#text-justify0 CSS3 text-justify specification]
[https://webkit.org/b/99945 Master bug]
Under development.

=== CSS3_CONDITIONAL_RULES ===
CSS3 @supports rule.
[http://dev.w3.org/csswg/css3-conditional/#at-supports @supports in the css3-conditional specification].
[http://lists.webkit.org/pipermail/webkit-dev/2012-June/021109.html Announcement].
[https://webkit.org/b/86146].

=== CSS_IMAGE_ORIENTATION ===
[http://www.w3.org/TR/2012/CR-css3-images-20120417/#the-image-orientation image-orientation CSS property].
[http://lists.webkit.org/pipermail/webkit-dev/2012-June/021151.html Announcement].
[http://webkit.org/b/89052]

=== CSS_IMAGE_RESOLUTION ===
[http://www.w3.org/TR/2012/CR-css3-images-20120417/#the-image-resolution image-resolution CSS property].
[http://lists.webkit.org/pipermail/webkit-dev/2012-April/020527.html Announcement].
[http://webkit.org/b/85262]

=== CSS_IMAGE_SET ===
[http://lists.w3.org/Archives/Public/www-style/2012Feb/1103.html image-set CSS property].

=== CSS_SHADERS ===

=== CSS_STICKY_POSITION ===
[http://lists.w3.org/Archives/Public/www-style/2012Jun/0627.html CSS position:sticky].
[http://lists.webkit.org/pipermail/webkit-dev/2012-June/021306.html Announcement].
[http://webkit.org/b/90046].

=== CSS_TRANSFORMS_ANIMATIONS_UNPREFIXED ===
[http://lists.webkit.org/pipermail/webkit-dev/2012-December/023156.html Announcement].
[http://webkit.org/b/93136]
Under development as they are few things to do before shipping them. Enabled by default in trunk.

=== CSS_VARIABLES ===
[http://www.w3.org/TR/css-variables/ CSS Variables Module].
[http://lists.webkit.org/pipermail/webkit-dev/2012-May/020633.html Announcement].
Under development.

=== CUSTOM_SCHEME_HANDLER ===
isProtocolHandlerRegistered() and unregisterProtocolHandler() of [http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#custom-handlers Custom scheme and content handlers].

=== DASHBOARD_SUPPORT ===

=== DATALIST_ELEMENT ===
<datalist> support.  Stable.  Need platform-specific implementation.

=== DATA_TRANSFER_ITEMS ===

=== DATE_AND_TIME_INPUT_TYPES ===
An alias of {{{ENABLE(INPUT_TYPE_DATE) || ENABLE(INPUT_TYPE_DATETIME) || ENABLE(INPUT_TYPE_DATETIMELOCAL) || ENABLE(INPUT_TYPE_MONTH) || ENABLE(INPUT_TYPE_TIME) || ENABLE(INPUT_TYPE_WEEK)}}}. We shouldn't enable/disable this flag explicitly.

=== DEBUG_MATH_LAYOUT ===

=== DELETION_UI ===

=== DETAILS_ELEMENT ===
<details> and <summary> support.  Stable.

=== DEVICE_ORIENTATION ===

=== DIALOG_ELEMENT ===
[http://www.whatwg.org/specs/web-apps/current-work/multipage/commands.html#the-dialog-element <dialog>] support.
[http://lists.webkit.org/pipermail/webkit-dev/2012-July/021343.html Announcement]. [http://webkit.org/b/84635]. Under development.

=== DIRECTORY_UPLOAD ===
<input type=file webkitdirectory> support.  Experimental.

=== DOM4_EVENTS_CONSTRUCTOR ===
Constructor support for DOM events.
[https://bugs.webkit.org/show_bug.cgi?id=67824 Meta bug].

=== DOWNLOAD_ATTRIBUTE ===

=== DRAG_SUPPORT ===

=== DRAGGABLE_REGION ===
Currently only supported in chromium port. http://lists.webkit.org/pipermail/webkit-dev/2012-June/021257.html

=== ENCRYPTED_MEDIA ===
[http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html Encrypted Media Extensions].
[http://lists.webkit.org/pipermail/webkit-dev/2012-April/020174.html Announcement].

=== ENCRYPTED_MEDIA_V2 ===
[https://bugs.webkit.org/show_bug.cgi?id=109318 Bug1] [https://bugs.webkit.org/show_bug.cgi?id=109320 Bug2].

=== EVENT_MODE_METATAGS ===

=== FAST_MOBILE_SCROLLING ===

=== FILE_SYSTEM ===

=== FILTERS ===
Image filter implementation. SVG Filter feature is available if ENABLE(SVG) && ENABLE(FILTERS).

=== FTPDIR ===
=== FULLSCREEN_API ===
=== GAMEPAD ===
=== GEOLOCATION ===
=== GESTURE_EVENTS ===

=== GLOBAL_FASTMALLOC_NEW ===

=== HIDDEN_PAGE_DOM_TIMER_THROTTLING ===
[http://lists.webkit.org/pipermail/webkit-dev/2012-October/022458.html] [http://webkit.org/b/98474]. Experimental.

=== HIGH_DPI_CANVAS ===
=== ICONDATABASE ===

=== IFRAME_SEAMLESS ===
<iframe seamless> support. [http://webkit.org/b/85822]

=== IMAGE_DECODER_DOWN_SAMPLING ===

=== INDEXED_DATABASE ===

=== INPUT_MULTIPLE_FIELDS_UI ===
Introduced by [http://webkit.org/b/97640] for using multiple fields UI in "date", "datetime", "datetime-local", "month", "time" and "week".
This flag was named INPUT_TYPE_TIME_MULTIPLE_FIELDS [http://webkit.org/b/88970].
[http://lists.webkit.org/pipermail/webkit-dev/2012-June/021305.html Announcement]. 

This flag provides inline editing UI for these input types. This UI is not suitable for mobile platforms.

=== INPUT_SPEECH ===
<input x-webkit-speech> support.  Experimental.

=== INPUT_TYPE_COLOR ===
<input type=color> support.  Stable. Need platform-specific code in ChromeClient.

=== INPUT_TYPE_DATE ===
<input type=date> support.
If ENABLE_INPUT_MULTIPLE_FIELDS_UI is enabled, `ChromeClient::openDateTimeChooser` implementation is optional.
Otherwise, `ChromeClient::openDateTimeChooser` implementation is mandatory.

=== INPUT_TYPE_DATETIME ===
<input type=datetime> support.  The implementation is still useless. **Do not enable this**.

=== INPUT_TYPE_DATETIMELOCAL ===
<input type=datetime-local> support.
If ENABLE_INPUT_MULTIPLE_FIELDS_UI is enabled, `ChromeClient::openDateTimeChooser` implementation is optional.
Otherwise, `ChromeClient::openDateTimeChooser` implementation is mandatory.

=== INPUT_TYPE_MONTH ===
<input type=month> support.
If ENABLE_INPUT_MULTIPLE_FIELDS_UI is enabled, `ChromeClient::openDateTimeChooser` implementation is optional.
Otherwise, `ChromeClient::openDateTimeChooser` implementation is mandatory.

=== INPUT_TYPE_TIME ===
<input type=time> support.
If ENABLE_INPUT_MULTIPLE_FIELDS_UI is enabled, `ChromeClient::openDateTimeChooser` implementation is optional.
Otherwise, `ChromeClient::openDateTimeChooser` implementation is mandatory.

=== INPUT_TYPE_WEEK ===
<input type=week> support.
If ENABLE_INPUT_MULTIPLE_FIELDS_UI is enabled, `ChromeClient::openDateTimeChooser` implementation is optional.
Otherwise, `ChromeClient::openDateTimeChooser` implementation is mandatory.

=== INSPECTOR ===
Inspector support.  Stable.

=== JAVASCRIPT_DEBUGGER ===

=== LEGACY_CSS_VENDOR_PREFIXES ===
Support for -khtml- and -apple- vendor prefixes. 

=== LEGACY_NOTIFICATIONS ===

=== LEGACY_VENDOR_PREFIXES ===

Obsolete prefixed APIs should be wrapped by this.

=== LEGACY_VIEWPORT_ADAPTION ===

=== LINK_PREFETCH ===
=== LINK_PRERENDER ===
[http://webkit.org/b/84871]

=== MATHML ===
MathML support.

=== MEDIA_CAPTURE ===
[http://www.w3.org/TR/html-media-capture/ HTML Media Capture] support.  [http://lists.webkit.org/pipermail/webkit-dev/2012-February/019481.html Announcement]. Support only 'capture' attribute for now.

=== MEDIA_SOURCE ===
=== MEDIA_STATISTICS ===
=== MEDIA_STREAM ===

=== METER_ELEMENT ===
<meter> support.  Stable.

=== MHTML ===

=== MICRODATA ===

=== MOUSE_CURSOR_SCALE ===
Allows mouse cursors to carry information about the scale of image pixels to logical UI pixels, eg. from -webkit-image-set.

[http://lists.webkit.org/pipermail/webkit-dev/2012-October/022549.html Announcement].
[http://dev.w3.org/csswg/css4-images/#image-values specification]
[https://bugs.webkit.org/show_bug.cgi?id=99493 Master bug]

=== NAVIGATOR_CONTENT_UTILS ===

[http://www.whatwg.org/specs/web-apps/current-work/multipage/timers.html#custom-handlers registerProtocolHandler, etc.]

=== NETSCAPE_PLUGIN_API ===

=== NETSCAPE_PLUGIN_METADATA_CACHE ===

=== NETWORK_INFO ===
[http://lists.webkit.org/pipermail/webkit-dev/2011-December/018726.html Announcement]. EFL port only supports this feature partially.

=== NOSNIFF ===

[https://bugs.webkit.org/show_bug.cgi?id=71851 Master bug].

=== NOTIFICATIONS ===

=== OPENCL ===
Enable OpenCL based optimizations.

=== OPENTYPE_VERTICAL ===

=== ORIENTATION_EVENTS ===

=== PAGE_POPUP ===
Internal API to provide HTML-capable popup. This is needed for calendar picker UI of <input type=date>.  This needs ChromeClient implementation.

=== PAGE_VISIBILITY_API ===

=== PAN_SCROLLING ===

=== PARSED_STYLE_SHEET_CACHING ===

[http://webkit.org/b/85413]

=== PLUGIN_PACKAGE_SIMPLE_HASH ===
=== PLUGIN_PROXY_FOR_VIDEO ===
=== POINTER_LOCK ===

=== PROGRESS_ELEMENT ===
<progress> support.  Stable.  Need to implement functions of RenderTheme.

=== PROXIMITY_EVENTS ===
[http://webkit.org/b/92837]. Under development.

=== QUOTA ===

=== REPAINT_THROTTLING ===
=== REQUEST_ANIMATION_FRAME ===

=== REQUEST_AUTOCOMPLETE ===
Adds an API for interactive autocomplete UI (currently only in chromium port). [https://bugs.webkit.org/show_bug.cgi?id=100560] Under development.

=== RUBBER_BANDING ===

=== SATURATED_LAYOUT_ARITHMETIC ===

=== SCRIPTED_SPEECH ===
Under development.

=== SHADOW_DOM ===
Shadow DOM support. Experimental.

=== SHARED_WORKERS ===
=== SMOOTH_SCROLLING ===
=== SPELLCHECK ===

=== SPEECH_SYNTHESIS ===
[http://lists.webkit.org/pipermail/webkit-dev/2013-January/023309.html Announcement].
[https://bugs.webkit.org/show_bug.cgi?id=106742 Meta Bug].
Under development.

=== SQL_DATABASE ===

=== STYLE_SCOPED ===
<style scoped> support.  Experimental.

=== SUBPIXEL_LAYOUT ===
[wiki:LayoutUnit]

=== SVG ===
SVG support.  Stable.

=== SVG_DOM_OBJC_BINDINGS ===
=== SVG_FONTS ===

=== TEMPLATE_ELEMENT ===
[http://dvcs.w3.org/hg/webcomponents/raw-file/tip/spec/templates/index.html Spec]
[https://bugs.webkit.org/show_bug.cgi?id=103547 Meta Bug]

=== TEXT_AUTOSIZING ===
[http://lists.webkit.org/pipermail/webkit-dev/2012-May/020819.html Announcement]. [http://webkit.org/b/84186]. Under development.


=== TEXT_CARET ===

=== THREADED_HTML_PARSER ===
[http://lists.webkit.org/pipermail/webkit-dev/2013-January/023271.html Announcement].
[https://bugs.webkit.org/show_bug.cgi?id=106127 Meta Bug].
Under development.

=== THREADED_SCROLLING ===
=== THREADING_GENERIC ===
=== TOUCH_EVENTS ===
=== TOUCH_ICON_LOADING ===

=== VIBRATION ===
[http://www.w3.org/TR/vibration/ Vibration API].

=== VIDEO ===
<video> and <audio> support.   Stable.

=== VIDEO_TRACK ===
=== VIEWPORT ===
=== VIEWPORT_REFLOW ===
=== WEBGL ===
=== WEB_ARCHIVE ===
=== WEB_AUDIO ===
=== WEB_INTENTS ===
=== WEB_SOCKETS ===
WebSocket support.  Stable. 

=== WEB_TIMING ===

=== WORKERS ===
=== WTF_MALLOC_VALIDATION ===
=== XHR_TIMEOUT ===
See also https://bugs.webkit.org/show_bug.cgi?id=100356 , temporary flag until all network backends have support for setTimeoutInterval (tracked in https://bugs.webkit.org/show_bug.cgi?id=98397)
=== XSLT ===


----

== JavaScriptCore flags ==

=== ASSEMBLER ===
=== ASSEMBLER_WX_EXCLUSIVE ===
=== CODEBLOCK_SAMPLING ===
=== COMPUTED_GOTO_OPCODES ===
=== DEBUG_WITH_BREAKPOINT ===
=== DFG_JIT ===
=== EXECUTABLE_ALLOCATOR_DEMAND ===
=== EXECUTABLE_ALLOCATOR_FIXED ===
=== GC_LOGGING ===
=== GC_VALIDATION ===
=== GGC ===
=== JIT ===
=== JIT_CONSTANT_BLINDING ===
=== JIT_VERBOSE ===
=== JIT_VERBOSE_OSR ===
=== OPCODE_SAMPLING ===
=== OPCODE_STATS ===
=== LLINT ===
=== META_ALLOCATOR_PROFILE ===
=== PARALLEL_GC ===
=== REGEXP_TRACING ===
=== SAMPLING_COUNTERS ===
=== SAMPLING_FLAGS ===
=== SAMPLING_REGIONS ===
=== SAMPLING_THREAD ===
=== SIMPLE_HEAP_PROFILING ===
=== VALUE_PROFILER ===
=== VERBOSE_VALUE_PROFILE ===
=== WRITE_BARRIER_PROFILING ===
=== YARR_JIT ===
=== YARR_JIT_DEBUG ===

----
== WebKit2 flags ==
=== MEMORY_SAMPLER ===
=== PLUGIN_PROCESS ===
=== WEB_PROCESS_SANDBOX ===


----
== Platform-specific flags ==

=== BLACKBERRY_CREDENTIAL_PERSIST ===
Blackberry
=== BLACKBERRY_DEBUG_MEMORY ===
Blackberry
=== JAVASCRIPT_I18N_API ===
V8-only. Experimental.
=== PURGEABLE_MEMORY ===
Mac
=== WEBDOM ===
Blackberry