Update HTMLMediaElement to the new OO MediaSource API.

Update HTMLMediaElement to the new OO MediaSource API.
https://bugs.webkit.org/show_bug.cgi?id=91775

Reviewed by Eric Carlson.

This patch rips out the old-style MediaSource API and allows a
MediaSource object to be attached to HTMLMediaElement.
http://dvcs.w3.org/hg/html-media/raw-file/tip/media-source/media-source.html

Source/WebCore:

Tests: updates to http/tests/media/media-source/*
       http/tests/media/media-source/video-media-source-add-and-remove-buffers.html
       http/tests/media/media-source/video-media-source-objects.html

* html/HTMLMediaElement.cpp:
(WebCore):
(WebCore::HTMLMediaElement::HTMLMediaElement): Remove old style API resources.
(WebCore::HTMLMediaElement::parseAttribute): Remove old style event attribute.
(WebCore::HTMLMediaElement::prepareForLoad): Set source state to "closed".
(WebCore::HTMLMediaElement::loadResource): Get MediaSource object from blob registry
    look up and, if found, set it's MediaPlayer pointer to the current MediaPlayer.
(WebCore::HTMLMediaElement::noneSupported): Set source state to "closed".
(WebCore::HTMLMediaElement::mediaEngineError): Set source state to "closed".
(WebCore::HTMLMediaElement::mediaPlayerSourceOpened): Set source state to "open".
(WebCore::HTMLMediaElement::mediaPlayerSourceURL): Change to new blob URL.
(WebCore::HTMLMediaElement::seek): Check if source state is "closed".
(WebCore::HTMLMediaElement::setSourceState): Helper function so that we don't have to
    keep checking for m_mediaSource.
(WebCore::HTMLMediaElement::userCancelledLoad): Set source state to "closed".
(WebCore::HTMLMediaElement::createMediaPlayer): If the current MediaPlayer is re-
     created, notify the MediaSource and reset its MediaPlayer.

* html/HTMLMediaElement.h: Remove old style API code and add a MediaSource object.
(HTMLMediaElement):
* html/HTMLMediaElement.idl: Remove old style API.

LayoutTests:

* http/tests/media/media-source/media-source.js:
(MediaSourceTest.SegmentHelper):
(MediaSourceTest.SegmentHelper.prototype.addSourceBuffer):
(MediaSourceTest.SegmentHelper.prototype.appendInitSegment):
(MediaSourceTest.SegmentHelper.prototype.appendMediaSegment):
(MediaSourceTest.SegmentHelper.prototype.appendUntilEndOfStream):
(MediaSourceTest.setSrcToMediaSourceTestURL):
(MediaSourceTest.defaultOnErrorChecks):
(MediaSourceTest.runOnSourceOpen.eventHandlerFunction):
(MediaSourceTest.runOnSourceOpen):
(MediaSourceTest.logSourceState):
(MediaSourceTest.expectSourceState):
* http/tests/media/media-source/video-media-source-abort-expected.txt:
* http/tests/media/media-source/video-media-source-abort.html:
* http/tests/media/media-source/video-media-source-add-and-remove-buffers-expected.txt: Renamed from LayoutTests/http/tests/media/media-source/video-media-source-add-and-remove-ids-expected.txt.
* http/tests/media/media-source/video-media-source-add-and-remove-buffers.html: Added.
* http/tests/media/media-source/video-media-source-add-and-remove-ids.html: Removed.
* http/tests/media/media-source/video-media-source-errors-expected.txt:
* http/tests/media/media-source/video-media-source-errors.html:
* http/tests/media/media-source/video-media-source-event-attributes-expected.txt:
* http/tests/media/media-source/video-media-source-event-attributes.html:
* http/tests/media/media-source/video-media-source-objects-expected.txt: Added.
* http/tests/media/media-source/video-media-source-objects.html: Added.
* http/tests/media/media-source/video-media-source-play-expected.txt:
* http/tests/media/media-source/video-media-source-play.html:
* http/tests/media/media-source/video-media-source-seek-expected.txt:
* http/tests/media/media-source/video-media-source-seek.html:
* http/tests/media/media-source/video-media-source-state-changes-expected.txt:
* http/tests/media/media-source/video-media-source-state-changes.html:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@125059 268f45cc-cd09-0410-ab3c-d52691b4dbfc