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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "webkit/common/blob/blob_data.h"
      6 
      7 #include "base/logging.h"
      8 #include "base/strings/sys_string_conversions.h"
      9 #include "base/strings/utf_string_conversions.h"
     10 #include "base/time/time.h"
     11 
     12 namespace webkit_blob {
     13 
     14 BlobData::BlobData() {}
     15 BlobData::BlobData(const std::string& uuid)
     16     : uuid_(uuid) {
     17 }
     18 
     19 BlobData::~BlobData() {}
     20 
     21 void BlobData::AppendData(const char* data, size_t length) {
     22   DCHECK(length > 0);
     23   items_.push_back(Item());
     24   items_.back().SetToBytes(data, length);
     25 }
     26 
     27 void BlobData::AppendFile(const base::FilePath& file_path,
     28                           uint64 offset, uint64 length,
     29                           const base::Time& expected_modification_time) {
     30   DCHECK(length > 0);
     31   items_.push_back(Item());
     32   items_.back().SetToFilePathRange(file_path, offset, length,
     33                                    expected_modification_time);
     34 }
     35 
     36 void BlobData::AppendBlob(const GURL& blob_url, uint64 offset, uint64 length) {
     37   DCHECK_GT(length, 0ul);
     38   items_.push_back(Item());
     39   items_.back().SetToBlobUrlRange(blob_url, offset, length);
     40 }
     41 
     42 void BlobData::AppendBlob(const std::string& uuid,
     43                           uint64 offset, uint64 length) {
     44   DCHECK_GT(length, 0ul);
     45   items_.push_back(Item());
     46   items_.back().SetToBlobRange(uuid, offset, length);
     47 }
     48 
     49 void BlobData::AppendFileSystemFile(
     50     const GURL& url, uint64 offset,
     51     uint64 length,
     52     const base::Time& expected_modification_time) {
     53   DCHECK(length > 0);
     54   items_.push_back(Item());
     55   items_.back().SetToFileSystemUrlRange(url, offset, length,
     56                                         expected_modification_time);
     57 }
     58 
     59 int64 BlobData::GetMemoryUsage() const {
     60   int64 memory = 0;
     61   for (std::vector<Item>::const_iterator iter = items_.begin();
     62        iter != items_.end(); ++iter) {
     63     if (iter->type() == Item::TYPE_BYTES)
     64       memory += iter->length();
     65   }
     66   return memory;
     67 }
     68 
     69 }  // namespace webkit_blob
     70