[ios] Use Fake term for ios/web/test/fake names

Bug: 688063
Change-Id: I5153b6c667cb471f30b7d57b05bc986eeceaccc3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2592391
Auto-Submit: Eugene But <eugenebut@chromium.org>
Commit-Queue: Nohemi Fernandez <fernandex@chromium.org>
Reviewed-by: Nohemi Fernandez <fernandex@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837020}

components/signin/ios/browser/active_state_manager_impl_unittest.mm

@@ -6,6 +6,7 @@
 
 #include "components/signin/ios/browser/active_state_manager.h"
 #include "ios/web/public/browser_state.h"
+#include "ios/web/public/test/fakes/fake_browser_state.h"
 #include "ios/web/public/test/web_task_environment.h"
 #include "ios/web/public/test/web_test.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -56,7 +57,7 @@ TEST_F(ActiveStateManagerImplTest, ObserverMethod) {
   ActiveStateManager::FromBrowserState(GetBrowserState())->SetActive(false);
 
   ActiveStateManagerObserver observer;
-  web::TestBrowserState browser_state;
+  web::FakeBrowserState browser_state;
   ActiveStateManager* active_state_manager =
       ActiveStateManager::FromBrowserState(&browser_state);