Revert 138554 - Prevent zero-length items from being appended to a blob.

webkit/blob/blob_data.cc

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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.
 
 #include "webkit/blob/blob_data.h"
 
 #include "base/logging.h"
 #include "base/sys_string_conversions.h"
 #include "base/time.h"
 #include "base/utf_string_conversions.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/platform/WebBlobData.h"
@@ skipping 67 matching lines @@
       default:
         NOTREACHED();
     }
   }
   content_type_= data.contentType().utf8().data();
   content_disposition_ = data.contentDisposition().utf8().data();
 }
 
 BlobData::~BlobData() {}
 
-void BlobData::AppendData(const char* data, size_t length) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToData(data, length);
-}
-
-void BlobData::AppendFile(const FilePath& file_path, uint64 offset,
-                          uint64 length,
-                          const base::Time& expected_modification_time) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToFile(file_path, offset, length,
-                          expected_modification_time);
-}
-
-void BlobData::AppendBlob(const GURL& blob_url, uint64 offset, uint64 length) {
-  DCHECK(length > 0);
-  items_.push_back(Item());
-  items_.back().SetToBlob(blob_url, offset, length);
-}
-
-int64 BlobData::GetMemoryUsage() const {
-  int64 memory = 0;
-  for (std::vector<Item>::const_iterator iter = items_.begin();
-       iter != items_.end(); ++iter) {
-    if (iter->type == TYPE_DATA)
-      memory += iter->data.size();
-  }
-  return memory;
-}
-
 }  // namespace webkit_blob