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diff --git a/toolkit/crashreporter/google-breakpad/src/common/windows/pe_source_line_writer.h b/toolkit/crashreporter/google-breakpad/src/common/windows/pe_source_line_writer.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_WINDOWS_PE_SOURCE_LINE_WRITER_H_
+#define COMMON_WINDOWS_PE_SOURCE_LINE_WRITER_H_
+
+#include <string>
+
+#include "common/basictypes.h"
+#include "common/windows/module_info.h"
+
+namespace google_breakpad {
+
+using std::wstring;
+
+// PESourceLineWriter uses a pe file produced by Visual C++ to output
+// a line/address map for use with BasicSourceLineResolver.
+// NOTE: Only supports PE32+ format, ie. a 64bit PE file.
+class PESourceLineWriter {
+public:
+  explicit PESourceLineWriter(const wstring& pe_file);
+  ~PESourceLineWriter();
+
+  // Writes Breakpad symbols from the pe file to |symbol_file|.
+  // Returns true on success.
+  bool WriteSymbols(FILE* symbol_file);
+
+  // Retrieves information about the module. Returns true on success.
+  bool GetModuleInfo(PDBModuleInfo* info);
+
+  // Retrieves information about the module's PE file.  Returns
+  // true on success.
+  bool GetPEInfo(PEModuleInfo* info);
+
+private:
+  const wstring pe_file_;
+
+  DISALLOW_COPY_AND_ASSIGN(PESourceLineWriter);
+};
+
+}  // namespace google_breakpad
+
+#endif  // COMMON_WINDOWS_PE_SOURCE_LINE_WRITER_H_