[Webkit-unassigned] [Bug 92200] New: The elements in Shadow DOM of input should not be modifiable

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92200

           Summary: The elements in Shadow DOM of input should not be
                    modifiable
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: shinyak at chromium.org
            Blocks: 65738


According to Bug 65738 comment, we have the following bugs.

1. Load data:text/html,<style>input::-webkit-textfield-decoration-container { -webkit-user-modify: read-write; }</style><input type=search>
2. Focus on the search field
3. Press backward-delete key
4. Crash

Another related issue:
1. Load data:text/html,<style>input::-webkit-search-results-button { -webkit-user-modify: read-write; }</style><input type=search results=20>
2. Right-click on the magnifier button.
3. You can type into the magnifier button.

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