Disable HTTPServer.StartAndInterfaceWithResponseProvider on iOS 9.
Disable HTTPServer.StartAndInterfaceWithResponseProvider on iOS 9.

This tests fails due to App Transport Security error when running on
iOS 9, disable it until this is fixed.

[----------] 1 test from HTTPServer
[ RUN      ] HTTPServer.StartAndInterfaceWithResponseProvider
2015-08-04 09:59:01.597 ios_web_unittests[77072:2153187] App Transport Security has blocked a cleartext HTTP (http:// resource load since it is insecure. Temporary exceptions can be configured via your app's Info.plist file.
../../ios/web/public/test/http_server_unittest.mm:71: Failure
Value of: base::SysUTF8ToNSString(kHelloWorld)
  Actual: Hello World
Expected: evaluation_result
Which is:
[  FAILED  ] HTTPServer.StartAndInterfaceWithResponseProvider (14 ms)
[----------] 1 test from HTTPServer (15 ms total)

BUG=516600

Review URL: https://codereview.chromium.org/1270933002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#341699}

CapOM/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,ltilve/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend,CapOM/ChromiumGStreamerBackend