Tests that application cache model keeps track of manifest urls and statuses correctly.

Bug 64581
Dumping application cache tree:
    (empty)
Dumping application cache model:
    (empty)

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        Frame: frame1 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        status:       IDLE

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        Frame: frame1 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        status:       IDLE

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        Frame: frame1 (page-with-manifest.php)
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        Frame: frame2 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        status:       IDLE
    Frame: frame2
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        status:       IDLE

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        Frame: frame1 (page-with-manifest.php)
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        Frame: frame2 (page-with-manifest.php)
        Frame: frame3 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        status:       IDLE
    Frame: frame2
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        status:       IDLE
    Frame: frame3
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        status:       IDLE

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        Frame: frame1 (page-with-manifest.php)
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        Frame: frame2 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        status:       IDLE
    Frame: frame2
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=1
        status:       IDLE

Dumping application cache tree:
    Manifest URL: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        Frame: frame1 (page-with-manifest.php)
Dumping application cache model:
    Frame: frame1
        manifest url: http://127.0.0.1:8000/inspector/appcache/resources/manifest.php?manifestId=2
        status:       IDLE

Dumping application cache tree:
    (empty)
Dumping application cache model:
    (empty)


