external/boringssl: Sync to 5e578c9dba73460c3eb17f771c77fc8e36f7812e.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/58e449904e248f34bdfc2be7a609c58bcb0257b7..5e578c9dba73460c3eb17f771c77fc8e36f7812e

Test: BoringSSL CTS Presubmits
Change-Id: Ic1541b034545fa58a284ca35134b3719303455c7
diff --git a/src/crypto/test/file_test_gtest.cc b/src/crypto/test/file_test_gtest.cc
new file mode 100644
index 0000000..cffacb3
--- /dev/null
+++ b/src/crypto/test/file_test_gtest.cc
@@ -0,0 +1,90 @@
+/* Copyright (c) 2017, Google Inc.
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
+
+#include "file_test.h"
+
+#include <assert.h>
+#include <string.h>
+
+#include <memory>
+#include <string>
+#include <utility>
+
+#include <gtest/gtest.h>
+
+#include <openssl/err.h>
+
+
+std::string GetTestData(const char *path);
+
+class StringLineReader : public FileTest::LineReader {
+ public:
+  explicit StringLineReader(const std::string &data)
+      : data_(data), offset_(0) {}
+
+  FileTest::ReadResult ReadLine(char *out, size_t len) override {
+    assert(len > 0);
+    if (offset_ == data_.size()) {
+      return FileTest::kReadEOF;
+    }
+
+    size_t idx = data_.find('\n', offset_);
+    if (idx == std::string::npos) {
+      idx = data_.size();
+    } else {
+      idx++;  // Include the newline.
+    }
+
+    if (idx - offset_ > len - 1) {
+      ADD_FAILURE() << "Line too long.";
+      return FileTest::kReadError;
+    }
+
+    memcpy(out, data_.data() + offset_, idx - offset_);
+    out[idx - offset_] = '\0';
+    offset_ = idx;
+    return FileTest::kReadSuccess;
+  }
+
+ private:
+  std::string data_;
+  size_t offset_;
+
+  StringLineReader(const StringLineReader &) = delete;
+  StringLineReader &operator=(const StringLineReader &) = delete;
+};
+
+void FileTestGTest(const char *path, std::function<void(FileTest *)> run_test) {
+  std::unique_ptr<StringLineReader> reader(
+      new StringLineReader(GetTestData(path)));
+  FileTest t(std::move(reader), nullptr);
+
+  while (true) {
+    switch (t.ReadNext()) {
+      case FileTest::kReadError:
+        ADD_FAILURE() << "Error reading test.";
+        return;
+      case FileTest::kReadEOF:
+        return;
+      case FileTest::kReadSuccess:
+        break;
+    }
+
+    SCOPED_TRACE(testing::Message() << path << ", line " << t.start_line());
+    run_test(&t);
+
+    // Clean up the error queue for the next test.
+    ERR_clear_error();
+  }
+}