Use scoped_ptr::Pass instead of scoped_ptr::PassAs<T>.

components/gcm_driver/gcm_account_mapper_unittest.cc

Index: components/gcm_driver/gcm_account_mapper_unittest.cc
diff --git a/components/gcm_driver/gcm_account_mapper_unittest.cc b/components/gcm_driver/gcm_account_mapper_unittest.cc
index 58fd82540c071725c1b3ba11bcf904da94592d27..d4f19e8579b69b8449f623906f8553140dcf5675 100644
--- a/components/gcm_driver/gcm_account_mapper_unittest.cc
+++ b/components/gcm_driver/gcm_account_mapper_unittest.cc
@@ -275,7 +275,7 @@ void GCMAccountMapperTest::Restart() {
   account_mapper_.reset(new GCMAccountMapper(&gcm_driver_));
   scoped_ptr<base::SimpleTestClock> clock(new base::SimpleTestClock);
   clock_ = clock.get();
-  account_mapper_->SetClockForTesting(clock.PassAs<base::Clock>());
+  account_mapper_->SetClockForTesting(clock.Pass());
 }
 
 // Tests the initialization of account mappings (from the store) when empty.