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diff --git a/src/common/windows/dia_util.h b/src/common/windows/dia_util.h
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+// Copyright 2013 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.
+
+// Utilities for loading debug streams and tables from a PDB file.
+
+#include <Windows.h>
+#include <dia2.h>
+
+namespace google_breakpad {
+
+// Find the debug stream of the given |name| in the given |session|. Returns
+// true on success, false on error of if the stream does not exist. On success
+// the stream will be returned via |debug_stream|.
+bool FindDebugStream(const wchar_t* name,
+                     IDiaSession* session,
+                     IDiaEnumDebugStreamData** debug_stream);
+
+// Finds the first table implementing the COM interface with ID |iid| in the
+// given |session|. Returns true on success, false on error or if no such
+// table is found. On success the table will be returned via |table|.
+bool FindTable(REFIID iid, IDiaSession* session, void** table);
+
+// A templated version of FindTable. Finds the first table implementing type
+// |InterfaceType| in the given |session|. Returns true on success, false on
+// error or if no such table is found. On success the table will be returned via
+// |table|.
+template<typename InterfaceType>
+bool FindTable(IDiaSession* session, InterfaceType** table) {
+  return FindTable(__uuidof(InterfaceType),
+                   session,
+                   reinterpret_cast<void**>(table));
+}
+
+}  // namespace google_breakpad