Merge third_party/brotli/src from https://chromium.googlesource.com/external/font-compression-reference.git at 931479d735e1121548c3b07aec866fd772cc4932

This commit was generated by merge_from_chromium.py.

Change-Id: I0ce348d2a5ef41ea7bd5d2361fa096a634e209f0

1 files changed, 33 insertions, 0 deletions

diff --git a/woff2/round.h b/woff2/round.h
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+++ b/woff2/round.h
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+// Copyright 2013 Google Inc. 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.
+//
+// Helper for rounding
+
+#ifndef BROTLI_WOFF2_ROUND_H_
+#define BROTLI_WOFF2_ROUND_H_
+
+namespace woff2 {
+
+// Round a value up to the nearest multiple of 4. Don't round the value in the
+// case that rounding up overflows.
+template<typename T> T Round4(T value) {
+  if (std::numeric_limits<T>::max() - value < 3) {
+    return value;
+  }
+  return (value + 3) & ~3;
+}
+
+} // namespace woff2
+
+#endif  // BROTLI_WOFF2_ROUND_H_