********** Chromium Blob hacking

webkit/base/data_element.h

Index: webkit/base/data_element.h
===================================================================
--- webkit/base/data_element.h	(revision 171309)
+++ webkit/base/data_element.h	(working copy)
@@ -5,6 +5,7 @@
 #ifndef WEBKIT_BASE_DATA_ELEMENT_H_
 #define WEBKIT_BASE_DATA_ELEMENT_H_
 
+#include <string>
 #include <vector>
 
 #include "base/basictypes.h"
@@ -34,7 +35,8 @@
   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_; }
+  const GURL& filesystem_url() const { return filesystem_url_; }
+  const std::string& blob_uuid() const { return blob_uuid_; }
   uint64 offset() const { return offset_; }
   uint64 length() const { return length_; }
   const base::Time& expected_modification_time() const {
@@ -62,8 +64,8 @@
   }
 
   // Sets TYPE_BLOB data.
-  void SetToBlobUrl(const GURL& blob_url) {
-    SetToBlobUrlRange(blob_url, 0, kuint64max);
+  void SetToBlob(const std::string& uuid) {
+    SetToBlobRange(uuid, 0, kuint64max);
   }
 
   // Sets TYPE_FILE data with range.
@@ -72,8 +74,8 @@
                           const base::Time& expected_modification_time);
 
   // Sets TYPE_BLOB data with range.
-  void SetToBlobUrlRange(const GURL& blob_url,
-                         uint64 offset, uint64 length);
+  void SetToBlobRange(const std::string& uuid,
+                      uint64 offset, uint64 length);
 
   // Sets TYPE_FILE_FILESYSTEM with range.
   void SetToFileSystemUrlRange(const GURL& filesystem_url,
@@ -83,9 +85,10 @@
  private:
   Type type_;
   std::vector<char> buf_;  // For TYPE_BYTES.
-  const char* bytes_;  // For TYPE_BYTES.
+  const char* bytes_;  // For TYPE_BYTES when we don't own the buffer.
   FilePath path_;  // For TYPE_FILE.
-  GURL url_;  // For TYPE_BLOB or TYPE_FILE_FILESYSTEM.
+  GURL filesystem_url_;  // For TYPE_FILE_FILESYSTEM.
+  std::string blob_uuid_;  // For TYPE_BLOB
   uint64 offset_;
   uint64 length_;
   base::Time expected_modification_time_;
@@ -104,8 +107,9 @@
       return a.path() == b.path() &&
              a.expected_modification_time() == b.expected_modification_time();
     case DataElement::TYPE_BLOB:
+       return a.blob_uuid() == b.blob_uuid();
     case DataElement::TYPE_FILE_FILESYSTEM:
-      return a.url() == b.url();
+      return a.filesystem_url() == b.filesystem_url();
     case DataElement::TYPE_UNKNOWN:
       NOTREACHED();
       return false;