[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, 35 insertions, 0 deletions

diff --git a/main_utils.h b/main_utils.h
new file mode 100644
index 0000000..addb830
--- /dev/null
+++ b/main_utils.h
@@ -0,0 +1,35 @@
+// 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.
+
+#ifndef COMPONENTS_ZUCCHINI_MAIN_UTILS_H_
+#define COMPONENTS_ZUCCHINI_MAIN_UTILS_H_
+
+#include <iosfwd>
+
+#include "base/files/file_path.h"
+#include "components/zucchini/zucchini.h"
+
+// Utilities to run Zucchini command based on command-line input, and to print
+// help messages.
+
+namespace base {
+
+class CommandLine;
+
+}  // namespace base
+
+// To add a new Zucchini command:
+// 1. Declare the command's main function in zucchini_command.h. Its signature
+//    must match CommandFunction.
+// 2. Define the command's main function in zucchini_command.cc.
+// 3. Add a new entry into |kCommands| in main_utils.cc.
+
+// Searches |command_line| for Zucchini commands. If a unique command is found,
+// runs it (passes |out| and |err|), and logs resource usage. Otherwise prints
+// help message to |err|. Returns Zucchini status code for error handling.
+zucchini::status::Code RunZucchiniCommand(const base::CommandLine& command_line,
+                                          std::ostream& out,
+                                          std::ostream& err);
+
+#endif  // COMPONENTS_ZUCCHINI_MAIN_UTILS_H_