https://bugs.webkit.org/show_bug.cgi?id=98044

Reviewed by Anders Carlsson.

Source/JavaScriptCore:

Enable the ENCRYPTED_MEDIA flag.

* Configurations/FeatureDefines.xcconfig:

Source/WebCore:

Enable the ENCRYPTED_MEDIA conditional on the Mac port.

No new tests; Existing media/encrypted-media tests require org.w3.clearkey support, which is not implemented.

* Configurations/FeatureDefines.xcconfig: Enable the ENCRYPTED_MEDIA flag.
* DerivedSources.make: Add the MediaKeyError and MediaKeyEvent classes.
* WebCore.xcodeproj/project.pbxproj: Ditto.
* bindings/js/JSDictionary.cpp:
(WebCore::JSDictionary::convertValue): Add convertValue functions for Uint8Array and MediaKeyError.
* bindings/js/JSDictionary.h:
* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::mediaPlayerKeyNeeded): Throw an error if no "needkey"
    handler is registered.
* html/HTMLMediaElement.h:
* html/HTMLMediaElement.idl: Change keySystem to DefaultIsUndefined.
* platform/graphics/MediaPlayer.cpp:
(WebCore::MediaPlayer::keyNeeded): Return a bool indicating whether the process was aborted
    due to a lack of "needkey" listener.
* platform/graphics/MediaPlayer.h:
(WebCore::MediaPlayerClient::mediaPlayerKeyAdded): Remove unused parameter names.
(WebCore::MediaPlayerClient::mediaPlayerKeyError): Ditto.
(WebCore::MediaPlayerClient::mediaPlayerKeyMessage): Ditto.
(WebCore::MediaPlayerClient::mediaPlayerKeyNeeded): Ditto.
* platform/graphics/MediaPlayerPrivate.h:
(WebCore::MediaPlayerPrivateInterface::addKey): Ditto.
(WebCore::MediaPlayerPrivateInterface::generateKeyRequest): Ditto.
(WebCore::MediaPlayerPrivateInterface::cancelKeyRequest): Ditto.
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.h:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::registerMediaEngine): Call extendedSupportsType.
(WebCore::MediaPlayerPrivateAVFoundationObjC::extendedSupportsType): Stub. Pass through to supportsType.
* platform/graphics/mac/MediaPlayerPrivateQTKit.h:
* platform/graphics/mac/MediaPlayerPrivateQTKit.mm:
(WebCore::MediaPlayerPrivateQTKit::registerMediaEngine): Call extendedSupportsType.
(WebCore::MediaPlayerPrivateQTKit::extendedSupportsType): Stub. Pass through to supportsType.

LayoutTests:

Add platform specific expected results.

* platform/mac/fast/events/constructors/media-key-event-constructor-expected.txt: Added.
* platform/chromium/fast/events/constructors/media-key-event-constructor-expected.txt: Copied from
    fast/events/constructors/media-key-event-constructor-expected.txt due to chromium expected results
    search order including platform/mac.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@131201 268f45cc-cd09-0410-ab3c-d52691b4dbfc