Replace ASSERT*() with DCHECK*() in core/fetch/ and core/loader/

third_party/WebKit/Source/core/loader/DocumentWriter.cpp

Index: third_party/WebKit/Source/core/loader/DocumentWriter.cpp
diff --git a/third_party/WebKit/Source/core/loader/DocumentWriter.cpp b/third_party/WebKit/Source/core/loader/DocumentWriter.cpp
index 7d1ae8257b156824af8f9b49229373375660c0fc..2fc35336d55e361d5ddec8e9d123594ec6d40ec4 100644
--- a/third_party/WebKit/Source/core/loader/DocumentWriter.cpp
+++ b/third_party/WebKit/Source/core/loader/DocumentWriter.cpp
@@ -84,7 +84,7 @@ void DocumentWriter::appendReplacingData(const String& source)
 
 void DocumentWriter::addData(const char* bytes, size_t length)
 {
-    ASSERT(m_parser);
+    DCHECK(m_parser);
     if (m_parser->needsDecoder() && 0 < length) {
         std::unique_ptr<TextResourceDecoder> decoder = m_decoderBuilder.buildFor(m_document);
         m_parser->setDecoder(std::move(decoder));
@@ -95,7 +95,7 @@ void DocumentWriter::addData(const char* bytes, size_t length)
 
 void DocumentWriter::end()
 {
-    ASSERT(m_document);
+    DCHECK(m_document);
 
     if (!m_parser)
         return;
@@ -112,7 +112,7 @@ void DocumentWriter::end()
 
 void DocumentWriter::setDocumentWasLoadedAsPartOfNavigation()
 {
-    ASSERT(m_parser && !m_parser->isStopped());
+    DCHECK(m_parser && !m_parser->isStopped());
     m_parser->setDocumentWasLoadedAsPartOfNavigation();
 }