Replace ASSERTs in platform/heap/ with DCHECKs

third_party/WebKit/Source/platform/heap/SelfKeepAlive.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SelfKeepAlive_h
 #define SelfKeepAlive_h
 
 #include "platform/heap/Persistent.h"
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
@@ skipping 43 matching lines @@
     assign(self);
     return *this;
   }
 
   void clear() { m_keepAlive.clear(); }
 
   explicit operator bool() const { return m_keepAlive; }
 
  private:
   void assign(Self* self) {
-    ASSERT(!m_keepAlive || m_keepAlive.get() == self);
+    DCHECK(!m_keepAlive || m_keepAlive.get() == self);
     m_keepAlive = self;
   }
 
   GC_PLUGIN_IGNORE("420515")
   Persistent<Self> m_keepAlive;
 };
 
 }  // namespace blink
 
 #endif  // SelfKeepAlive_h