Bug 164763 - [WebCore] Drop frame protection for script execution
Summary: [WebCore] Drop frame protection for script execution
Status: NEW
Alias: None
Product: WebKit
Classification: Unclassified
Component: DOM (show other bugs)
Version: WebKit Nightly Build
Hardware: Unspecified Unspecified
: P2 Normal
Assignee: Nobody
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2016-11-14 20:28 PST by Yusuke Suzuki
Modified: 2022-01-04 02:48 PST (History)
3 users (show)

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Description Yusuke Suzuki 2016-11-14 20:28:01 PST 
In ScriptController and ScriptElement, there are some `Ref<Frame> protector(frame)` protections.
It avoids destroying Frame during executing scripts.

But if there are no code touching Frame after the execution of the script, we do not need to save Frame.
Comment 1 Yusuke Suzuki 2016-11-14 20:32:05 PST 
Not in ScriptElement.
Comment 2 Michael Catanzaro 2018-01-29 12:22:10 PST 
Be careful if changing this: the ScriptController is actually owned by its Frame, so removing protectors could cause the ScriptController itself to be destroyed.