Change EXPECT/ASSERT_DCHECK_DEATH macro to not expose the |regex| parameter.

base/threading/thread_restrictions.cc

Index: base/threading/thread_restrictions.cc
diff --git a/base/threading/thread_restrictions.cc b/base/threading/thread_restrictions.cc
index 93a452ff59fc1bea70dc9d31b214bfd35679dcfc..8dd77433325f075e2741086368612ae2c8c6eb3f 100644
--- a/base/threading/thread_restrictions.cc
+++ b/base/threading/thread_restrictions.cc
@@ -35,7 +35,7 @@ bool ThreadRestrictions::SetIOAllowed(bool allowed) {
 // static
 void ThreadRestrictions::AssertIOAllowed() {
   if (g_io_disallowed.Get().Get()) {
-    LOG(FATAL) <<
+    NOTREACHED() <<
         "Function marked as IO-only was called from a thread that "
         "disallows IO!  If this thread really should be allowed to "
         "make IO calls, adjust the call to "
@@ -54,14 +54,14 @@ bool ThreadRestrictions::SetSingletonAllowed(bool allowed) {
 // static
 void ThreadRestrictions::AssertSingletonAllowed() {
   if (g_singleton_disallowed.Get().Get()) {
-    LOG(FATAL) << "LazyInstance/Singleton is not allowed to be used on this "
-               << "thread.  Most likely it's because this thread is not "
-               << "joinable (or the current task is running with "
-               << "TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN semantics), so "
-               << "AtExitManager may have deleted the object on shutdown, "
-               << "leading to a potential shutdown crash. If you need to use "
-               << "the object from this context, it'll have to be updated to "
-               << "use Leaky traits.";
+    NOTREACHED() << "LazyInstance/Singleton is not allowed to be used on this "
+                 << "thread.  Most likely it's because this thread is not "
+                 << "joinable (or the current task is running with "
+                 << "TaskShutdownBehavior::CONTINUE_ON_SHUTDOWN semantics), so "
+                 << "AtExitManager may have deleted the object on shutdown, "
+                 << "leading to a potential shutdown crash. If you need to use "
+                 << "the object from this context, it'll have to be updated to "
+                 << "use Leaky traits.";
   }
 }
 
@@ -73,8 +73,8 @@ void ThreadRestrictions::DisallowWaiting() {
 // static
 void ThreadRestrictions::AssertWaitAllowed() {
   if (g_wait_disallowed.Get().Get()) {
-    LOG(FATAL) << "Waiting is not allowed to be used on this thread to prevent "
-               << "jank and deadlock.";
+    NOTREACHED() << "Waiting is not allowed to be used on this thread to "
+                 << "prevent jank and deadlock.";
   }
 }