Update mojo sdk to rev e7270700d671fa8e458b4d8c9e47f7bcfb65da0b

third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h

Index: third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h
diff --git a/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h b/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h
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index 0000000000000000000000000000000000000000..1b80a5b19fa8987470b25e64596df630f28f1200
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+++ b/third_party/mojo/src/mojo/public/cpp/bindings/lib/validation_util.h
@@ -0,0 +1,48 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_
+#define MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_
+
+#include <stdint.h>
+
+#include "mojo/public/cpp/bindings/lib/bounds_checker.h"
+#include "mojo/public/cpp/bindings/message.h"
+
+namespace mojo {
+namespace internal {
+
+// Checks whether decoding the pointer will overflow and produce a pointer
+// smaller than |offset|.
+bool ValidateEncodedPointer(const uint64_t* offset);
+
+// Validates that |data| contains a valid struct header, in terms of alignment
+// and size (i.e., the |num_bytes| field of the header is sufficient for storing
+// the header itself). Besides, it checks that the memory range
+// [data, data + num_bytes) is not marked as occupied by other objects in
+// |bounds_checker|. On success, the memory range is marked as occupied.
+// Note: Does not verify |version| or that |num_bytes| is correct for the
+// claimed version.
+bool ValidateStructHeaderAndClaimMemory(const void* data,
+                                        BoundsChecker* bounds_checker);
+
+// Validates that the message is a request which doesn't expect a response.
+bool ValidateMessageIsRequestWithoutResponse(const Message* message);
+// Validates that the message is a request expecting a response.
+bool ValidateMessageIsRequestExpectingResponse(const Message* message);
+// Validates that the message is a response.
+bool ValidateMessageIsResponse(const Message* message);
+
+// Validates that the message payload is a valid struct of type ParamsType.
+template <typename ParamsType>
+bool ValidateMessagePayload(const Message* message) {
+  BoundsChecker bounds_checker(message->payload(), message->payload_num_bytes(),
+                               message->handles()->size());
+  return ParamsType::Validate(message->payload(), &bounds_checker);
+}
+
+}  // namespace internal
+}  // namespace mojo
+
+#endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_VALIDATION_UTIL_H_