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diff --git a/toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.h b/toolkit/crashreporter/breakpad-client/windows/unittests/dump_analysis.h
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+// Copyright (c) 2010, 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 CLIENT_WINDOWS_UNITTESTS_DUMP_ANALYSIS_H_
+#define CLIENT_WINDOWS_UNITTESTS_DUMP_ANALYSIS_H_
+
+#include "client/windows/crash_generation/minidump_generator.h"
+
+// Convenience to get to the PEB pointer in a TEB.
+struct FakeTEB {
+  char dummy[0x30];
+  void* peb;
+};
+
+class DumpAnalysis {
+ public:
+  explicit DumpAnalysis(const std::wstring& file_path)
+      : dump_file_(file_path), dump_file_view_(NULL), dump_file_mapping_(NULL),
+        dump_file_handle_(NULL) {
+    EnsureDumpMapped();
+  }
+  ~DumpAnalysis();
+
+  bool HasStream(ULONG stream_number) const;
+
+  // This is template to keep type safety in the front, but we end up casting
+  // to void** inside the implementation to pass the pointer to Win32. So
+  // casting here is considered safe.
+  template <class StreamType>
+  size_t GetStream(ULONG stream_number, StreamType** stream) const {
+    return GetStreamImpl(stream_number, reinterpret_cast<void**>(stream));
+  }
+
+  bool HasTebs() const;
+  bool HasPeb() const;
+  bool HasMemory(ULONG64 address) const {
+    return HasMemory<BYTE>(address, NULL);
+  }
+
+  bool HasMemory(const void* address) const {
+    return HasMemory<BYTE>(address, NULL);
+  }
+
+  template <class StructureType>
+  bool HasMemory(ULONG64 address, StructureType** structure = NULL) const {
+    // We can't cope with 64 bit addresses for now.
+    if (address > 0xFFFFFFFFUL)
+      return false;
+
+    return HasMemory(reinterpret_cast<void*>(address), structure);
+  }
+
+  template <class StructureType>
+  bool HasMemory(const void* addr_in, StructureType** structure = NULL) const {
+    return HasMemoryImpl(addr_in, sizeof(StructureType),
+                             reinterpret_cast<void**>(structure));
+  }
+
+ protected:
+  void EnsureDumpMapped();
+
+  HANDLE dump_file_mapping_;
+  HANDLE dump_file_handle_;
+  void* dump_file_view_;
+  std::wstring dump_file_;
+
+ private:
+  // This is the implementation of GetStream<>.
+  size_t GetStreamImpl(ULONG stream_number, void** stream) const;
+
+  // This is the implementation of HasMemory<>.
+  bool HasMemoryImpl(const void* addr_in, size_t pointersize,
+                     void** structure) const;
+};
+
+#endif  // CLIENT_WINDOWS_UNITTESTS_DUMP_ANALYSIS_H_