[Chromium] Store HTTP version in WebURLResponse

[Chromium] Store HTTP version in WebURLResponse
https://bugs.webkit.org/show_bug.cgi?id=86522

Reviewed by Adam Barth.

Source/Platform:

* chromium/public/WebURLResponse.h:
(WebURLResponse):

Source/WebCore:

No new tests; this isn't exposed to the web platform.

* platform/chromium/support/WebURLResponse.cpp:
(WebKit::WebURLResponse::httpVersion):
(WebKit):
(WebKit::WebURLResponse::setHTTPVersion):
* platform/network/chromium/ResourceResponse.h:
(ResourceResponse):
(WebCore::ResourceResponse::ResourceResponse):
(WebCore::ResourceResponse::httpVersion):
(WebCore::ResourceResponse::setHTTPVersion):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@117529 268f45cc-cd09-0410-ab3c-d52691b4dbfc