Back out 5 changesets (bug 1028460, bug 1031444) for somehow breaking asmjscache/test/test_cachingBasic.html on Android 2.2

Backed out changeset 0b5918ec6521 (bug 1031444)
Backed out changeset 663ff18cd4a1 (bug 1028460)
Backed out changeset ae01b3919c8c (bug 1028460)
Backed out changeset 316c8dfeca9b (bug 1028460)
Backed out changeset e237b2c61ea2 (bug 1028460)