Update Crashpad to 4a2043ea65e2641ef1a921801c0aaa15ada02fc7

third_party/crashpad/crashpad/util/net/http_body_gzip.h

+// Copyright 2017 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_
+#define CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <memory>
+
+#include "base/macros.h"
+#include "util/file/file_io.h"
+#include "util/net/http_body.h"
+
+extern "C" {
+typedef struct z_stream_s z_stream;
+}  // extern "C"
+
+namespace crashpad {
+
+//! \brief An implementation of HTTPBodyStream that `gzip`-compresses another
+//!     HTTPBodyStream.
+class GzipHTTPBodyStream : public HTTPBodyStream {
+ public:
+  explicit GzipHTTPBodyStream(std::unique_ptr<HTTPBodyStream> source);
+
+  ~GzipHTTPBodyStream() override;
+
+  // HTTPBodyStream:
+  FileOperationResult GetBytesBuffer(uint8_t* buffer, size_t max_len) override;
+
+ private:
+  enum State : int {
+    kUninitialized,
+    kOperating,
+    kInputEOF,
+    kFinished,
+    kError,
+  };
+
+  // Calls deflateEnd() and transitions state_ to state. If deflateEnd() fails,
+  // logs a message and transitions state_ to State::kError.
+  void Done(State state);
+
+  uint8_t input_[4096];
+  std::unique_ptr<HTTPBodyStream> source_;
+  std::unique_ptr<z_stream> z_stream_;
+  State state_;
+
+  DISALLOW_COPY_AND_ASSIGN(GzipHTTPBodyStream);
+};
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_NET_HTTP_BODY_GZIP_H_