Remove BLINK_ASSERT() and BLINK_ASSERT_NOT_REACHED() macros.

third_party/WebKit/public/platform/WebPrivatePtr.h

Index: third_party/WebKit/public/platform/WebPrivatePtr.h
diff --git a/third_party/WebKit/public/platform/WebPrivatePtr.h b/third_party/WebKit/public/platform/WebPrivatePtr.h
index 047d32cecd3a77ed29fab882a117c9ed459e012e..2de8fd5809d92e4296a6dc774e28802508462adc 100644
--- a/third_party/WebKit/public/platform/WebPrivatePtr.h
+++ b/third_party/WebKit/public/platform/WebPrivatePtr.h
@@ -248,7 +248,7 @@ public:
         // want to expose destructors of core classes to embedders. We should
         // call reset() manually in destructors of classes with WebPrivatePtr
         // members.
-        BLINK_ASSERT(!m_storage);
+        DCHECK(!m_storage);
     }
 
     bool isNull() const { return !m_storage; }