Test lock checks.

base/synchronization/lock.cc

Index: base/synchronization/lock.cc
diff --git a/base/synchronization/lock.cc b/base/synchronization/lock.cc
index 03297ada52fb2ab216b052ffeda90e130d29a206..850989f1e68922ffc380c0ec914dbda9a84f75d8 100644
--- a/base/synchronization/lock.cc
+++ b/base/synchronization/lock.cc
@@ -20,16 +20,16 @@ Lock::~Lock() {
 }
 
 void Lock::AssertAcquired() const {
-  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
+  CHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
 }
 
 void Lock::CheckHeldAndUnmark() {
-  DCHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
+  CHECK(owning_thread_ref_ == PlatformThread::CurrentRef());
   owning_thread_ref_ = PlatformThreadRef();
 }
 
 void Lock::CheckUnheldAndMark() {
-  DCHECK(owning_thread_ref_.is_null());
+  CHECK(owning_thread_ref_.is_null());
   owning_thread_ref_ = PlatformThread::CurrentRef();
 }