EditorBase::GetFocusedContent() QIs, and before that GetDOMEventTarget() has AddRefed, and then slow SameCOMIdentity() is used.
Created attachment 8879089 [details] [diff] [review] getfocusedcontent.diff
Attachment #8879089 - Flags: review?(masayuki)
Comment on attachment 8879089 [details] [diff] [review] getfocusedcontent.diff Wow, tricky... GetDOMEventTarget() may return nsIDocument. However, in such case, content should refer different address. So, this should be safe.
Attachment #8879089 - Flags: review?(masayuki) → review+
Pushed by email@example.com: https://hg.mozilla.org/integration/mozilla-inbound/rev/aa2c280f4b3b avoid some extra QIs in EditorBase::GetFocusedContent(), r=masayuki
Status: NEW → RESOLVED
Last Resolved: a year ago
status-firefox56: --- → fixed
Resolution: --- → FIXED
Target Milestone: --- → mozilla56
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