Rename ProfileOAuth2TokenServiceDelegateChromeOS's tests

|CrOSOAuthDelegate| was renamed to
|ProfileOAuth2TokenServiceDelegateChromeOS| but its unit tests were not.

Rename the unit tests for consistency.

Bug: 967602
Change-Id: I85fd3bc5dd601bea8301dd091194f391a07693b9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1771597
Commit-Queue: Kush Sinha <sinhak@chromium.org>
Commit-Queue: Sylvain Defresne <sdefresne@chromium.org>
Reviewed-by: Sylvain Defresne <sdefresne@chromium.org>
Cr-Commit-Position: refs/heads/master@{#690348}

components/signin/internal/identity_manager/profile_oauth2_token_service_delegate_chromeos.h

@@ -66,9 +66,9 @@ class ProfileOAuth2TokenServiceDelegateChromeOS
   void OnConnectionChanged(network::mojom::ConnectionType type) override;
 
  private:
-  FRIEND_TEST_ALL_PREFIXES(CrOSOAuthDelegateTest,
+  FRIEND_TEST_ALL_PREFIXES(ProfileOAuth2TokenServiceDelegateChromeOSTest,
                            BackOffIsTriggerredForTransientErrors);
-  FRIEND_TEST_ALL_PREFIXES(CrOSOAuthDelegateTest,
+  FRIEND_TEST_ALL_PREFIXES(ProfileOAuth2TokenServiceDelegateChromeOSTest,
                            BackOffIsResetOnNetworkChange);
 
   // A utility class to keep track of |GoogleServiceAuthError|s for an account.