https://bugs.webkit.org/show_bug.cgi?id=121237

Reviewed by Darin Adler.

Source/WebCore:

This makes memory management cleared and fixes a leak in PDFDocumentImage::createPDFDocument.
We use a RetainPtr subclass as a stopgap measure to prevent code that does [buffer->createNSData() autorelease]
from compiling and crashing due to the NSData object being overreleased.

* loader/ResourceBuffer.h:
* loader/mac/ResourceBuffer.mm:
(WebCore::ResourceBuffer::createNSData):
* platform/SharedBuffer.h:
(WebCore::SharedBuffer::NSDataRetainPtr::NSDataRetainPtr):
* platform/graphics/mac/PDFDocumentImageMac.mm:
(WebCore::PDFDocumentImage::createPDFDocument):
* platform/mac/HTMLConverter.mm:
(-[WebHTMLConverter _addAttachmentForElement:URL:needsParagraph:usePlaceholder:]):
(fileWrapperForURL):
* platform/mac/PasteboardMac.mm:
(WebCore::fileWrapper):
(WebCore::Pasteboard::read):
(WebCore::documentFragmentWithRTF):
(WebCore::fragmentFromWebArchive):
* platform/mac/PlatformPasteboardMac.mm:
(WebCore::PlatformPasteboard::setBufferForType):
* platform/mac/SharedBufferMac.mm:
(WebCore::SharedBuffer::createNSData):

Source/WebKit/mac:

Update for WebCore changes. This also fixes a leak where we'd create an NSFileWrapper from NSData but never release the data.

* WebView/WebDataSource.mm:
(-[WebDataSource data]):
* WebView/WebHTMLRepresentation.mm:
(-[WebHTMLRepresentation documentSource]):
* WebView/WebHTMLView.mm:
(-[WebHTMLView namesOfPromisedFilesDroppedAtDestination:]):
* WebView/WebResource.mm:
(-[WebResource encodeWithCoder:]):
(-[WebResource data]):

Source/WebKit2:

Update for WebCore changes.

* UIProcess/API/mac/WKView.mm:
(-[WKView writeSelectionToPasteboard:types:]):
(-[WKView _setPromisedData:WebCore::withFileName:withExtension:withTitle:withURL:withVisibleURL:withArchive:WebCore::forPasteboard:]):
(-[WKView namesOfPromisedFilesDroppedAtDestination:]):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@155641 268f45cc-cd09-0410-ab3c-d52691b4dbfc