[Curl] Add abstraction layer of cookie jar implementation for Curl port

[Curl] Add abstraction layer of cookie jar implementation for Curl port
https://bugs.webkit.org/show_bug.cgi?id=174943

Patch by Basuke Suzuki <Basuke.Suzuki@sony.com> on 2017-08-07
Reviewed by Brent Fulgham.

* platform/network/curl/CookieJarCurl.cpp:
(WebCore::CookieJarCurlFileSystem::setCookiesFromDOM):
(WebCore::CookieJarCurlFileSystem::cookiesForDOM):
(WebCore::CookieJarCurlFileSystem::cookieRequestHeaderFieldValue):
(WebCore::CookieJarCurlFileSystem::cookiesEnabled):
(WebCore::CookieJarCurlFileSystem::getRawCookies):
(WebCore::CookieJarCurlFileSystem::deleteCookie):
(WebCore::CookieJarCurlFileSystem::getHostnamesWithCookies):
(WebCore::CookieJarCurlFileSystem::deleteCookiesForHostnames):
(WebCore::CookieJarCurlFileSystem::deleteAllCookies):
(WebCore::CookieJarCurlFileSystem::deleteAllCookiesModifiedSince):
(WebCore::cookiesForDOM):
(WebCore::setCookiesFromDOM):
(WebCore::cookieRequestHeaderFieldValue):
(WebCore::cookiesEnabled):
(WebCore::getRawCookies):
(WebCore::deleteCookie):
(WebCore::getHostnamesWithCookies):
(WebCore::deleteCookiesForHostnames):
(WebCore::deleteAllCookies):
(WebCore::deleteAllCookiesModifiedSince):
* platform/network/curl/CookieJarCurl.h: Added.
* platform/network/curl/CurlContext.cpp:
* platform/network/curl/CurlContext.h:
(WebCore::CurlContext::cookieJar):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@220351 268f45cc-cd09-0410-ab3c-d52691b4dbfc