https://bugs.webkit.org/show_bug.cgi?id=102182

Reviewed by Eric Carlson.

Source/WebCore:

Add support for BLOB (and other non-natively supported schemed) URLs through the AVAssetResourceLoader API.

Test: media/video-src-blob.html

* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.h:
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::shouldWaitForLoadingOfResource): Only go down the encrypted
    media path if the key scheme is skp://.
(WebCore::MediaPlayerPrivateAVFoundationObjC::didCancelLoadingRequest): Added.  Cancel resource loading if
    the media engine requests it.
(WebCore::MediaPlayerPrivateAVFoundationObjC::addKey): Use the new, non-deprecated API.

Use the dispatch_main_queue() as the AVAssetResourceLoadDelegate queue now that <rdar://problem/12362461> is fixed.
* platform/graphics/avfoundation/objc/MediaPlayerPrivateAVFoundationObjC.mm:
(WebCore::MediaPlayerPrivateAVFoundationObjC::createAVAssetForURL):
(-[WebCoreAVFLoaderDelegate resourceLoader:shouldWaitForLoadingOfRequestedResource:]):
(-[WebCoreAVFLoaderDelegate resourceLoader:didCancelLoadingRequest:]):

Add a new helper class to manage loading the CachedRawResource and feed the incoming
data to the AVAssetResourceLoader.
* platform/graphics/avfoundation/objc/WebCoreAVFResourceLoader.h: Added.
* platform/graphics/avfoundation/objc/WebCoreAVFResourceLoader.mm: Added.
(WebCore::WebCoreAVFResourceLoader::create): Simple factory.
(WebCore::WebCoreAVFResourceLoader::WebCoreAVFResourceLoader): Simple constructor.
(WebCore::WebCoreAVFResourceLoader::~WebCoreAVFResourceLoader): Simple destructor.
(WebCore::WebCoreAVFResourceLoader::startLoading): Tell the cachedResourceLoader to schedule loading.
(WebCore::WebCoreAVFResourceLoader::stopLoading): Remove this as a client of the resource.
(WebCore::WebCoreAVFResourceLoader::responseReceived): Fill in the contentInformation field of the
    AVAssetResourceLoadingRequest.
(WebCore::WebCoreAVFResourceLoader::dataReceived): Call fulfillRequestWithResource.
(WebCore::WebCoreAVFResourceLoader::notifyFinished): Tell the AVAssetResourceLoadingRequest that loading
    has completed.
(WebCore::WebCoreAVFResourceLoader::fulfillRequestWithResource): Fill in (if possible) the dataRequest
    field of the AVAssetResourceLoadingRequest.

Add a MediaPlayerClient method allowing MediaPlayerPrivate subclasses to access the HTMLMediaElement's
document's cachedResourceLoader.
* html/HTMLMediaElement.cpp:
(WebCore::HTMLMediaElement::mediaPlayerCachedResourceLoader):
* html/HTMLMediaElement.h:
* platform/graphics/MediaPlayer.cpp:
(WebCore::MediaPlayer::cachedResourceLoader):
* platform/graphics/MediaPlayer.h:
(WebCore::MediaPlayerClient::mediaPlayerCachedResourceLoader):

Add a convenience method to convert from MIME type -> UTI.
* platform/network/mac/UTIUtilities.h:
* platform/network/mac/UTIUtilities.mm:
(WebCore::UTIFromMIMEType):

Add new files to project.
* WebCore.xcodeproj/project.pbxproj:

LayoutTests:

Add a new test which verifies blob url support in video elements.

* media/video-src-blob-expected.txt: Added.
* media/video-src-blob.html: Added.
* platform/mac/TestExpectations: Add expected failure results for OSX releases where
    custom media loading is not supported.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@134802 268f45cc-cd09-0410-ab3c-d52691b4dbfc