Replace ASSERTs in platform/heap/ with DCHECKs

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

Index: third_party/WebKit/Source/platform/heap/GCTaskRunner.h
diff --git a/third_party/WebKit/Source/platform/heap/GCTaskRunner.h b/third_party/WebKit/Source/platform/heap/GCTaskRunner.h
index 211ff27faeb0992d5bc1ab70fd495552eaf1adbf..50dadf023c39bbb976caece84d8790550771fc3c 100644
--- a/third_party/WebKit/Source/platform/heap/GCTaskRunner.h
+++ b/third_party/WebKit/Source/platform/heap/GCTaskRunner.h
@@ -74,7 +74,7 @@ class GCTaskObserver final : public WebThread::TaskObserver {
   ~GCTaskObserver() {
     // m_nesting can be 1 if this was unregistered in a task and
     // didProcessTask was not called.
-    ASSERT(!m_nesting || m_nesting == 1);
+    DCHECK(!m_nesting || m_nesting == 1);
   }
 
   virtual void willProcessTask() { m_nesting++; }