[Zucchini] Move Zucchini from /chrome/installer/ to /components/.

(Use "git log --follow" to see older revisions of files).

/components/ is the most logical place to put Zucchini, which only
depends on /base and /testing/gtest. This move also enables Zucchini to
be used by the Component Updater. Details:
- Move all files; run the following to change deps and guards:
  sed 's/chrome\/installer/components/' *.cc *.h -i
  sed 's/CHROME_INSTALLER/COMPONENTS/' *.cc *.h -i
  - Sorting works out pretty well!
- Change all 'chrome/installer/zucchini' to 'components/zucchini'
  throughout other parts of the repo; sort if necessary.
- Fix 6 'git cl lint' errors.
- Change 1 Bind() usage to BindRepeated().
- Update OWNER.

Bug: 729154
Change-Id: I50c5a7d411ea85f707b5994ab319dfb2a1acccf7
Reviewed-on: https://chromium-review.googlesource.com/954923
Reviewed-by: Greg Thompson <grt@chromium.org>
Reviewed-by: Jochen Eisinger <jochen@chromium.org>
Reviewed-by: Samuel Huang <huangs@chromium.org>
Commit-Queue: Samuel Huang <huangs@chromium.org>
Cr-Commit-Position: refs/heads/master@{#542857}
NOKEYCHECK=True
GitOrigin-RevId: 577ef6c435e8d43be6e3e60ccbcbd1881780f4ec

1 files changed, 47 insertions, 0 deletions

diff --git a/crc32_unittest.cc b/crc32_unittest.cc
new file mode 100644
index 0000000..5ec85a8
--- /dev/null
+++ b/crc32_unittest.cc
@@ -0,0 +1,47 @@
+// Copyright 2017 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.
+
+#include "components/zucchini/crc32.h"
+
+#include <stdint.h>
+
+#include <iterator>
+
+#include "base/test/gtest_util.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace zucchini {
+
+constexpr uint8_t bytes[] = {0x10, 0x32, 0x54, 0x76, 0x98,
+                             0xBA, 0xDC, 0xFE, 0x10, 0x00};
+
+TEST(Crc32Test, All) {
+  // Results can be verified with any CRC-32 calculator found online.
+
+  // Empty region.
+  EXPECT_EQ(0x00000000U, CalculateCrc32(std::begin(bytes), std::begin(bytes)));
+
+  // Single byte.
+  EXPECT_EQ(0xCFB5FFE9U,
+            CalculateCrc32(std::begin(bytes), std::begin(bytes) + 1));
+
+  // Same byte (0x10) appearing at different location.
+  EXPECT_EQ(0xCFB5FFE9U,
+            CalculateCrc32(std::begin(bytes) + 8, std::begin(bytes) + 9));
+
+  // Single byte of 0.
+  EXPECT_EQ(0xD202EF8DU,
+            CalculateCrc32(std::begin(bytes) + 9, std::end(bytes)));
+
+  // Whole region.
+  EXPECT_EQ(0xA86FD7D6U, CalculateCrc32(std::begin(bytes), std::end(bytes)));
+
+  // Whole region excluding 0 at end.
+  EXPECT_EQ(0x0762F38BU,
+            CalculateCrc32(std::begin(bytes), std::begin(bytes) + 9));
+
+  EXPECT_DCHECK_DEATH(CalculateCrc32(std::begin(bytes) + 1, std::begin(bytes)));
+}
+
+}  // namespace zucchini