[SOUP] [WK2] WebProcess and NetworkProcess initialization clears cache contents
https://bugs.webkit.org/show_bug.cgi?id=137489

Reviewed by Carlos Garcia Campos.

Temporarily set the SoupCache's maximum size to a huge value
before calling soup_cache_load() so that the cache is not shrinked
to the default value.

* NetworkProcess/soup/NetworkProcessSoup.cpp:
(WebKit::NetworkProcess::platformInitializeNetworkProcess):
* WebProcess/soup/WebProcessSoup.cpp:
(WebKit::WebProcess::platformInitializeWebProcess):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@174639 268f45cc-cd09-0410-ab3c-d52691b4dbfc