Support FileSystem URL in File object

webkit/base/data_element.h

 // Copyright (c) 2012 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.
 
 #ifndef WEBKIT_BASE_DATA_ELEMENT_H_
 #define WEBKIT_BASE_DATA_ELEMENT_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/time.h"
 #include "googleurl/src/gurl.h"
 #include "webkit/base/webkit_base_export.h"
 
 namespace webkit_base {
 
 // Represents a base Web data element. This could be either one of
 // bytes, file or blob data.
 class WEBKIT_BASE_EXPORT DataElement {
  public:
   enum Type {
     TYPE_UNKNOWN = -1,
     TYPE_BYTES,
     TYPE_FILE,
     TYPE_BLOB,
+    TYPE_FILE_FILESYSTEM,
   };
 
   DataElement();
   ~DataElement();
 
   Type type() const { return type_; }
   const char* bytes() const { return bytes_ ? bytes_ : &buf_[0]; }
   const FilePath& path() const { return path_; }
   const GURL& url() const { return url_; }
   uint64 offset() const { return offset_; }
@@ skipping 29 matching lines @@
 
   // Sets TYPE_FILE data with range.
   void SetToFilePathRange(const FilePath& path,
                           uint64 offset, uint64 length,
                           const base::Time& expected_modification_time);
 
   // Sets TYPE_BLOB data with range.
   void SetToBlobUrlRange(const GURL& blob_url,
                          uint64 offset, uint64 length);
 
+  // Sets TYPE_FILE_FILESYSTEM with range.
+  void SetToFileSystemUrlRange(const GURL& filesystem_url,
+                               uint64 offset, uint64 length,
+                               const base::Time& expected_modification_time);
+
  private:
   Type type_;
-  std::vector<char> buf_;
-  const char* bytes_;
-  FilePath path_;
-  GURL url_;
+  std::vector<char> buf_;  // For TYPE_BYTES.
+  const char* bytes_;  // For TYPE_BYTES.
+  FilePath path_;  // For TYPE_FILE.
+  GURL url_;  // For TYPE_BLOB or TYPE_FILE_FILESYSTEM.
   uint64 offset_;
   uint64 length_;
   base::Time expected_modification_time_;
 };
 
 #if defined(UNIT_TEST)
 inline bool operator==(const DataElement& a, const DataElement& b) {
   if (a.type() != b.type() ||
       a.offset() != b.offset() ||
       a.length() != b.length())
     return false;
   switch (a.type()) {
     case DataElement::TYPE_BYTES:
       return memcmp(a.bytes(), b.bytes(), b.length()) == 0;
     case DataElement::TYPE_FILE:
       return a.path() == b.path() &&
              a.expected_modification_time() == b.expected_modification_time();
     case DataElement::TYPE_BLOB:
+    case DataElement::TYPE_FILE_FILESYSTEM:
       return a.url() == b.url();
     case DataElement::TYPE_UNKNOWN:
       NOTREACHED();
       return false;
   }
   return false;
 }
 
 inline bool operator!=(const DataElement& a, const DataElement& b) {
   return !(a == b);
 }
 #endif  // defined(UNIT_TEST)
 
 }  // namespace webkit_base
 
 #endif  // WEBKIT_BASE_DATA_ELEMENT_H_