Make WebURLLoader capable of retaining received buffers.

content/public/child/fixed_received_data.cc

Index: content/public/child/fixed_received_data.cc
diff --git a/content/public/child/fixed_received_data.cc b/content/public/child/fixed_received_data.cc
new file mode 100644
index 0000000000000000000000000000000000000000..773a3fd9725d8c24e8430d1dcab15934287ea1e2
--- /dev/null
+++ b/content/public/child/fixed_received_data.cc
@@ -0,0 +1,41 @@
+// Copyright 2015 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 "content/public/child/fixed_received_data.h"
+
+namespace content {
+
+FixedReceivedData::FixedReceivedData(const char* data,
+                                     size_t length,
+                                     int encoded_length)
+    : data_(data, data + length), encoded_length_(encoded_length) {
+}
+
+FixedReceivedData::FixedReceivedData(scoped_ptr<ReceivedData> data)
+    : FixedReceivedData(data->payload(),
+                        data->encoded_length(),
+                        data->encoded_length()) {
+}
+
+FixedReceivedData::FixedReceivedData(const std::vector<char>& data,
+                                     int encoded_length)
+    : data_(data), encoded_length_(encoded_length) {
+}
+
+FixedReceivedData::~FixedReceivedData() {
+}
+
+const char* FixedReceivedData::payload() const {
+  return data_.empty() ? nullptr : &data_[0];
+}
+
+int FixedReceivedData::length() const {
+  return static_cast<int>(data_.size());
+}
+
+int FixedReceivedData::encoded_length() const {
+  return encoded_length_;
+}
+
+}  // namespace content