Allow assertions to be enabled in Blink Release builds.

Source/web/WebScopedMicrotaskSuppression.cpp

Index: Source/web/WebScopedMicrotaskSuppression.cpp
diff --git a/Source/web/WebScopedMicrotaskSuppression.cpp b/Source/web/WebScopedMicrotaskSuppression.cpp
index 3a103e232a4ab2b6edcc09e8d5f551161372e2fd..31a1fd01d9b2b0b5b95f94215b6b3b268221a9a4 100644
--- a/Source/web/WebScopedMicrotaskSuppression.cpp
+++ b/Source/web/WebScopedMicrotaskSuppression.cpp
@@ -32,11 +32,12 @@
 #include "public/web/WebScopedMicrotaskSuppression.h"
 
 #include "bindings/core/v8/V8RecursionScope.h"
+#include "wtf/Assertions.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
 class WebScopedMicrotaskSuppression::Impl : public WebCore::V8RecursionScope::MicrotaskSuppression {
 public:
     Impl(v8::Isolate* isolate)
@@ -48,14 +49,14 @@ public:
 
 void WebScopedMicrotaskSuppression::initialize()
 {
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_impl.reset(new Impl(v8::Isolate::GetCurrent()));
 #endif
 }
 
 void WebScopedMicrotaskSuppression::reset()
 {
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
     m_impl.reset(0);
 #endif
 }