Add support for a "split" incognito behavior for extensions.

chrome/browser/extensions/extension_cookies_unittest.cc

Index: chrome/browser/extensions/extension_cookies_unittest.cc
diff --git a/chrome/browser/extensions/extension_cookies_unittest.cc b/chrome/browser/extensions/extension_cookies_unittest.cc
index 0abbe7e3165447396156c561fb114c2f4fab99c4..ec9084af400a058ceeda3cee5b2b4f6d8a3cea2a 100644
--- a/chrome/browser/extensions/extension_cookies_unittest.cc
+++ b/chrome/browser/extensions/extension_cookies_unittest.cc
@@ -83,16 +83,16 @@ TEST_F(ExtensionCookiesTest, StoreIdProfileConversion) {
 
   EXPECT_EQ(std::string("1"),
             extension_cookies_helpers::GetStoreIdFromProfile(&otrProfile));
-  EXPECT_EQ(&profile,
+  EXPECT_EQ(NULL,
             extension_cookies_helpers::ChooseProfileFromStoreId(
                 "0", &otrProfile, true));
-  EXPECT_EQ(&profile,
+  EXPECT_EQ(NULL,
             extension_cookies_helpers::ChooseProfileFromStoreId(
                 "0", &otrProfile, false));
   EXPECT_EQ(&otrProfile,
             extension_cookies_helpers::ChooseProfileFromStoreId(
                 "1", &otrProfile, true));
-  EXPECT_EQ(NULL,
+  EXPECT_EQ(&otrProfile,
             extension_cookies_helpers::ChooseProfileFromStoreId(
                 "1", &otrProfile, false));
 }