Replace ASSERT with DCHECK in modules/fetch.

third_party/WebKit/Source/modules/fetch/Body.cpp

 // Copyright 2014 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.
 
 #include "modules/fetch/Body.h"
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "bindings/core/v8/V8ArrayBuffer.h"
 #include "bindings/core/v8/V8ThrowException.h"
@@ skipping 184 matching lines @@
   } else {
     resolver->resolve(String());
   }
   return promise;
 }
 
 ScriptValue Body::body(ScriptState* scriptState) {
   if (!bodyBuffer())
     return ScriptValue::createNull(scriptState);
   ScriptValue stream = bodyBuffer()->stream();
-  ASSERT(stream.getScriptState() == scriptState);
+  DCHECK(stream.getScriptState() == scriptState);

[tkent, 2017/04/08 02:29:54]

Use DCHECK_EQ if it doesn't cause a build failure.

   return stream;
 }
 
 bool Body::bodyUsed() {
   return bodyBuffer() && bodyBuffer()->isStreamDisturbed();
 }
 
 bool Body::isBodyLocked() {
   return bodyBuffer() && bodyBuffer()->isStreamLocked();
 }
@@ skipping 10 matching lines @@
 
 ScriptPromise Body::rejectInvalidConsumption(ScriptState* scriptState) {
   if (isBodyLocked() || bodyUsed())
     return ScriptPromise::reject(
         scriptState, V8ThrowException::createTypeError(scriptState->isolate(),
                                                        "Already read"));
   return ScriptPromise();
 }
 
 }  // namespace blink