win: make CrashpadInfo retrievable

util/win/checked_win_address_range.h

Index: util/win/checked_win_address_range.h
diff --git a/util/win/checked_win_address_range.h b/util/win/checked_win_address_range.h
new file mode 100644
index 0000000000000000000000000000000000000000..e86c7b7b0a8a0ea34ccb47683fd3b694c9264af1
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+++ b/util/win/checked_win_address_range.h
@@ -0,0 +1,36 @@
+// Copyright 2015 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_WIN_CHECKED_WIN_ADDRESS_RANGE_H_
+#define CRASHPAD_UTIL_WIN_CHECKED_WIN_ADDRESS_RANGE_H_
+
+#include "util/numeric/checked_address_range.h"
+#include "util/win/address_types.h"
+
+namespace crashpad {
+
+//! \brief Ensures that a range, composed of a base and a size, does not
+//!     overflow the pointer type of the process it describes a range in.
+//!
+//! This class checks bases of type WinVMAddress and sizes of type WinVMSize
+//! against a process whose pointer type is either 32 or 64 bits wide.
+//!
+//! Aside from varying the overall range on the basis of a process' pointer type
+//! width, this class functions very similarly to CheckedRange.
+using CheckedWinAddressRange =
+    internal::CheckedAddressRangeGeneric<WinVMAddress, WinVMSize>;
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_WIN_CHECKED_WIN_ADDRESS_RANGE_H_