[Webkit-unassigned] [Bug 180819] New: Avoid waking plugin process up unnecessarily

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Dec 14 10:25:21 PST 2017


https://bugs.webkit.org/show_bug.cgi?id=180819

            Bug ID: 180819
           Summary: Avoid waking plugin process up unnecessarily
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebKit Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: bfulgham at webkit.org

WebKit purges data from origins marked as prevalent on an hourly interval. This includes waking up plugins and removing relevant data stored in those plugins. This causes multiple plugin processes to be spawned, even though the user is not interacting with any plugins.

Instead, we should delay removing data from plugins until they are loaded due to the user interacting with a website using a plugin.

Make the following changes:

1. When looking for plugin data related to prevalent sites, only examine plugin data if the relevant plugin is already running.
2. When the state of the active plugins changes, trigger a data removal check.

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