Add CookieStoreConfig to unify API for in-memory and persistent CookieStore Creation.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index ae58e10b1d2330d4eb6058e6782b856735497041..c7ec8e38cdfa6df62b8c62fe02ac0c7cdb424b45 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -125,7 +125,8 @@ class TestExtensionURLRequestContext : public net::URLRequestContext {
  public:
   TestExtensionURLRequestContext() {
     net::CookieMonster* cookie_monster =
-        content::CreateInMemoryCookieStore(NULL)->GetCookieMonster();
+        content::CreateCookieStore(content::CookieStoreConfig())->
+            GetCookieMonster();
     const char* schemes[] = {extensions::kExtensionScheme};
     cookie_monster->SetCookieableSchemes(schemes, 1);
     set_cookie_store(cookie_monster);