test: allow tests to pass without internet

Currently when running the test without an internet connection there are
two JavaScript test failures and one cctest. The cctest only fails on
Mac as far as I know. (I've only tested using Mac and Linux thus far).

This commit moves the two JavaScript tests to test/internet.

The details for test_inspector_socket_server.cc:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
make[1]: *** [cctest] Segmentation fault: 11
make: *** [test] Error 2

lldb output:

[ RUN      ] InspectorSocketServerTest.FailsToBindToNodejsHost
Process 63058 stopped
* thread #1: tid = 0x7b175, 0x00007fff96d04384
* libsystem_info.dylib`_gai_simple + 87, queue =
* 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1,
* address=0x0)
    frame #0: 0x00007fff96d04384 libsystem_info.dylib`_gai_simple + 87
libsystem_info.dylib`_gai_simple:
->  0x7fff96d04384 <+87>: movw   (%rdx), %ax
    0x7fff96d04387 <+90>: movw   %ax, -0x2a(%rbp)
    0x7fff96d0438b <+94>: movq   %r13, -0...