Really set URLRequestContextGetter inside CookieManager.
CookieManager has member pointer into URLRequestContextGetter (request_context_getter_),
but because of the way objects of these classes were created, this pointer was never
properly initialized (it was always set to NULL). This patch makes it initialize properly.
Reviewed by: Daniel Waślicki, Janusz Majnert, Kamil Klimek, Piotr Tworek, SeungSeop Park
Change-Id: I1b55be86288b82d34bc34edc1970c84c0a60af15
Signed-off-by: Wojciech Wiśniewski <w.wisniewski@samsung.com>