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diff --git a/src/common/linux/symbol_collector_client.h b/src/common/linux/symbol_collector_client.h
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+++ b/src/common/linux/symbol_collector_client.h
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+// Copyright (c) 2019, Google Inc.
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#ifndef COMMON_LINUX_SYMBOL_COLLECTOR_CLIENT_H_
+#define COMMON_LINUX_SYMBOL_COLLECTOR_CLIENT_H_
+
+#include <string>
+
+#include "common/linux/libcurl_wrapper.h"
+#include "common/using_std_string.h"
+
+namespace google_breakpad {
+namespace sym_upload {
+
+struct UploadUrlResponse {
+  string upload_url;
+  string upload_key;
+};
+
+enum SymbolStatus {
+  Found,
+  Missing,
+  Unknown
+};
+
+enum CompleteUploadResult {
+  Ok,
+  DuplicateData,
+  Error
+};
+
+// Helper class to communicate with a sym-upload-v2 service over HTTP/REST,
+// via libcurl.
+class SymbolCollectorClient {
+ public:
+  static bool CreateUploadUrl(
+      LibcurlWrapper* libcurl_wrapper,
+      const string& api_url,
+      const string& api_key,
+      UploadUrlResponse* uploadUrlResponse);
+
+  static CompleteUploadResult CompleteUpload(
+      LibcurlWrapper* libcurl_wrapper,
+      const string& api_url,
+      const string& api_key,
+      const string& upload_key,
+      const string& debug_file,
+      const string& debug_id);
+
+  static SymbolStatus CheckSymbolStatus(
+      LibcurlWrapper* libcurl_wrapper,
+      const string& api_url,
+      const string& api_key,
+      const string& debug_file,
+      const string& debug_id);
+};
+
+}  // namespace sym_upload
+}  // namespace google_breakpad
+
+#endif  // COMMON_LINUX_SYMBOL_COLLECTOR_CLIENT_H_