Track the NPN protocol version negotiated with the server

Track the NPN protocol version negotiated with the server
https://bugs.webkit.org/show_bug.cgi?id=77349

Source/WebCore:

Patch by raman Tenneti <rtenneti@chromium.org> on 2012-02-18
Reviewed by Darin Fisher..

[chromium] Added ExtraData to WebURLResponse.

No intended functionality change.

* platform/network/chromium/ResourceResponse.h:
(ExtraData):
(WebCore::ResourceResponse::ExtraData::~ExtraData):
(ResourceResponse):
(WebCore::ResourceResponse::extraData):
(WebCore::ResourceResponse::setExtraData):

Source/WebKit/chromium:

Patch by raman Tenneti <rtenneti@chromium.org> on 2012-02-18
Reviewed by Darin Fisher.

[chromium] Added ExtraData to WebURLResponse.

* WebKit.gypi:
* public/platform/WebURLResponse.h:
(ExtraData):
(WebKit::WebURLResponse::ExtraData::~ExtraData):
(WebURLResponse):
* src/WebURLResponse.cpp:
(WebKit::WebURLResponse::extraData):
(WebKit):
(WebKit::WebURLResponse::setExtraData):
* tests/WebURLResponseTest.cpp: Added.
(WebKit):
(TestExtraData):
(WebKit::TestExtraData::TestExtraData):
(WebKit::TestExtraData::~TestExtraData):
(WebKit::TEST):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@108184 268f45cc-cd09-0410-ab3c-d52691b4dbfc