Verify that UISourceCodes are added and removed as iframe with dynamic script and stylesheet is added and removed.


Running: dumpInitialWorkspace
Removed: 0 uiSourceCodes
Workspace: 2 uiSourceCodes.
    debugger:///VM[XXX]
    http://127.0.0.1:8000/devtools/resources/inspected-page.html

Running: attachFrame
Removed: 0 uiSourceCodes
Workspace: 9 uiSourceCodes.
    debugger:///VM[XXX]
[+] debugger:///VM[XXX] dynamic-frame.html
[+] debugger:///VM[XXX] dynamic-script.js
[+] debugger:///VM[XXX] _test_attachFrame.js
[+] dynamic-style.css
[+] http://127.0.0.1:8000/devtools/bindings/resources/dynamic-frame.html
[+] http://127.0.0.1:8000/devtools/resources/dynamic-script.js
    http://127.0.0.1:8000/devtools/resources/inspected-page.html
[+] http://127.0.0.1:8000/devtools/resources/_test_attachFrame.js

Running: detachFrame
Removed: 3 uiSourceCodes
[-] dynamic-style.css
[-] http://127.0.0.1:8000/devtools/bindings/resources/dynamic-frame.html
[-] http://127.0.0.1:8000/devtools/resources/dynamic-script.js
Workspace: 8 uiSourceCodes.
    debugger:///VM[XXX]
    debugger:///VM[XXX] dynamic-frame.html
    debugger:///VM[XXX] dynamic-script.js
    debugger:///VM[XXX] _test_attachFrame.js
[+] debugger:///VM[XXX] _test_detachFrame.js
    http://127.0.0.1:8000/devtools/resources/inspected-page.html
    http://127.0.0.1:8000/devtools/resources/_test_attachFrame.js
[+] http://127.0.0.1:8000/devtools/resources/_test_detachFrame.js