Replace ASSERT, ASSERT_NOT_REACHED, and RELEASE_ASSERT in modules/filesystem

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

 /*
  * Copyright (C) 2012 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 39 matching lines @@
 Entry* DataTransferItemFileSystem::webkitGetAsEntry(ScriptState* script_state,
                                                     DataTransferItem& item) {
   if (!item.GetDataObjectItem()->IsFilename())
     return 0;
 
   // For dragged files getAsFile must be pretty lightweight.
   Blob* file = item.getAsFile();
   // The clipboard may not be in a readable state.
   if (!file)
     return 0;
-  ASSERT(file->IsFile());
+  DCHECK(file->IsFile());
 
   DOMFileSystem* dom_file_system =
       DraggedIsolatedFileSystemImpl::GetDOMFileSystem(
           item.GetDataTransfer()->GetDataObject(),
           script_state->GetExecutionContext(), *item.GetDataObjectItem());
   if (!dom_file_system) {
     // IsolatedFileSystem may not be enabled.
     return 0;
   }
 
   // The dropped entries are mapped as top-level entries in the isolated
   // filesystem.
   String virtual_path = DOMFilePath::Append("/", ToFile(file)->name());
 
   // FIXME: This involves synchronous file operation. Consider passing file type
   // data when we dispatch drag event.
   FileMetadata metadata;
   if (!GetFileMetadata(ToFile(file)->GetPath(), metadata))
     return 0;
 
   if (metadata.type == FileMetadata::kTypeDirectory)
     return DirectoryEntry::Create(dom_file_system, virtual_path);
   return FileEntry::Create(dom_file_system, virtual_path);
 }
 
 }  // namespace blink