Blobs should only compute the size when asked to.
Created attachment 231006 [details]
Attachment 231006 [details] did not pass style-queue:
ERROR: Source/WebCore/ChangeLog:39: You should remove the 'No new tests' and either add and list tests, or explain why no new tests were possible. [changelog/nonewtests] 
Total errors found: 1 in 18 files
If any of these errors are false positives, please file a bug against check-webkit-style.