Update from https://crrev.com/333737

third_party/android_crazy_linker/src/src/crazy_linker_leb128.h

Index: third_party/android_crazy_linker/src/src/crazy_linker_leb128.h
diff --git a/third_party/android_crazy_linker/src/src/crazy_linker_leb128.h b/third_party/android_crazy_linker/src/src/crazy_linker_leb128.h
new file mode 100644
index 0000000000000000000000000000000000000000..787566e66433b9cb7c10b723b96ffccd80d6c1f3
--- /dev/null
+++ b/third_party/android_crazy_linker/src/src/crazy_linker_leb128.h
@@ -0,0 +1,50 @@
+// Copyright 2014 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 CRAZY_LINKER_LEB128_H
+#define CRAZY_LINKER_LEB128_H
+
+#include <assert.h>
+#include <stdint.h>
+
+// Helper classes for decoding LEB128, used in packed relocation data.
+// http://en.wikipedia.org/wiki/LEB128
+
+namespace crazy {
+
+class Sleb128Decoder {
+ public:
+  Sleb128Decoder(const uint8_t* buffer, size_t count)
+      : current_(buffer), end_(buffer + count) { }
+
+  size_t pop_front() {
+    size_t value = 0;
+    static const size_t size = CHAR_BIT * sizeof(value);
+
+    size_t shift = 0;
+    uint8_t byte;
+
+    do {
+      assert(current_ < end_);
+
+      byte = *current_++;
+      value |= (static_cast<size_t>(byte & 127) << shift);
+      shift += 7;
+    } while (byte & 128);
+
+    if (shift < size && (byte & 64)) {
+      value |= -(static_cast<size_t>(1) << shift);
+    }
+
+    return value;
+  }
+
+ private:
+  const uint8_t* current_;
+  const uint8_t* const end_;
+};
+
+}  // namespace crazy
+
+#endif  // CRAZY_LINKER_LEB128_H