Let Document keep its RenderView during render tree attach.
Created attachment 209499 [details]
Attachment 209499 [details] did not pass style-queue:
Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCore/dom/Document.cpp']" exit_code: 1
Source/WebCore/ChangeLog:3: ChangeLog entry has no bug number [changelog/bugnumber] 
Total errors found: 1 in 1 files
If any of these errors are false positives, please file a bug against check-webkit-style.
Comment on attachment 209499 [details]
r=me assuming it does not break the world
Committed r154517: <http://trac.webkit.org/changeset/154517>