HTMLRestrictionsFieldTest::provideValidate only provide test cases with
\n, which fails on windows machine.
I see no reason to use the system depending constant here
Change-Id: I7caf2c4d06c84cac69e20e03d00a93bcd8e7d405
It mostly already worked. HTMLForm::trySubmit() needed a little
adjustment to handle things properly.
Change-Id: Ibb17bb61ac0b2d41953249980bc2f23b8a3ae5b6