RELEASE_ASSERT -> CHECK and ASSERT -> DCHECK in web.

third_party/WebKit/Source/web/WebBlob.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 38 matching lines @@
     OwnPtr<BlobData> blobData = BlobData::create();
     blobData->appendFile(path, 0, size, invalidFileTime());
     return Blob::create(BlobDataHandle::create(blobData.release(), size));
 }
 
 WebBlob WebBlob::fromV8Value(v8::Local<v8::Value> value)
 {
     if (V8Blob::hasInstance(value, v8::Isolate::GetCurrent())) {
         v8::Local<v8::Object> object = v8::Local<v8::Object>::Cast(value);
         Blob* blob = V8Blob::toImpl(object);
-        ASSERT(blob);
+        DCHECK(blob);
         return blob;
     }
     return WebBlob();
 }
 
 void WebBlob::reset()
 {
     m_private.reset();
 }
 
 void WebBlob::assign(const WebBlob& other)
 {
     m_private = other.m_private;
 }
 
 WebString WebBlob::uuid()
 {
     if (!m_private.get())
         return WebString();
     return m_private->uuid();
 }
 
 v8::Local<v8::Value> WebBlob::toV8Value(v8::Local<v8::Object> creationContext, v8::Isolate* isolate)
 {
     // We no longer use |creationContext| because it's often misused and points
     // to a context faked by user script.
-    ASSERT(creationContext->CreationContext() == isolate->GetCurrentContext());
+    DCHECK(creationContext->CreationContext() == isolate->GetCurrentContext());
     if (!m_private.get())
         return v8::Local<v8::Value>();
     return toV8(m_private.get(), isolate->GetCurrentContext()->Global(), isolate);
 }
 
 WebBlob::WebBlob(Blob* blob)
     : m_private(blob)
 {
 }
 
 WebBlob& WebBlob::operator=(Blob* blob)
 {
     m_private = blob;
     return *this;
 }
 
 } // namespace blink