Replace ASSERT, ASSERT_NOT_REACHED, and RELEASE_ASSERT in modules/filesystem

third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp

Index: third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp
diff --git a/third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp b/third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp
index 8bc2b380ce5b7262e3ec2222898e8a1445e49f85..d3e451d8474975a9fd32de137f9c2738a524c375 100644
--- a/third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp
+++ b/third_party/WebKit/Source/modules/filesystem/FileWriterSync.cpp
@@ -39,8 +39,8 @@
 namespace blink {
 
 void FileWriterSync::write(Blob* data, ExceptionState& exception_state) {
-  ASSERT(data);
-  ASSERT(Writer());
+  DCHECK(data);
+  DCHECK(Writer());
   DCHECK(complete_);
 
   PrepareForWrite();
@@ -56,14 +56,14 @@ void FileWriterSync::write(Blob* data, ExceptionState& exception_state) {
 }
 
 void FileWriterSync::seek(long long position, ExceptionState& exception_state) {
-  ASSERT(Writer());
+  DCHECK(Writer());
   DCHECK(complete_);
   SeekInternal(position);
 }
 
 void FileWriterSync::truncate(long long offset,
                               ExceptionState& exception_state) {
-  ASSERT(Writer());
+  DCHECK(Writer());
   DCHECK(complete_);
   if (offset < 0) {
     exception_state.ThrowDOMException(kInvalidStateError,