Reverts "[Fuchsia] Use more high level fuchsia-gn-sdk templates (flutter#55445)" (flutter/engine#55834)

Reverts: flutter/engine#55445
Initiated by: zijiehe-google-com
Reason for reverting: This change would break the build_fuchsia_artifacts.py without https://github.com/flutter/engine/pull/55832/files. I'd merge two into one.
Original PR Author: zijiehe-google-com

Reviewed By: {jrwang}

This change reverts the following previous change:
This change removes the in-house built pm-based build rules in favor of the high level fuchsia_component / fuchsia_package in the gn-sdk.

The build_fuchsia_artifacts.py is still using pm, and it will be handled in a following change.

Bug: http://b/353729557, http://b/368608542

[C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style

Author: auto-submit[bot]

engine/src/flutter/shell/platform/fuchsia/dart_runner/BUILD.gn

@@ -190,6 +190,12 @@ template("aot_runner_package") {
                   "//flutter/shell/platform/fuchsia/runtime/dart/profiler_symbols:dart_aot_runner",
                   "target_gen_dir") + "/dart_aot_runner.dartprofilersymbols")
 
+      inputs = [
+        vmservice_snapshot,
+        observatory_archive_file,
+        dart_profiler_symbols,
+      ]
+
       resources += [
         {
           path = vmservice_snapshot

engine/src/flutter/tools/fuchsia/build_fuchsia_artifacts.py

@@ -146,8 +146,6 @@ def CopyZirconFFILibIfExists(source, destination):
   FindFileAndCopyTo('libzircon_ffi.so', source_root, destination_base)
 
 
-# TODO(zijiehe): http://crbug.com/368608542, avoid using pm or building far
-# packages here, packages should be built by ninja.
 def CopyToBucketWithMode(source, destination, aot, product, runner_type, api_level):
   mode = 'aot' if aot else 'jit'
   product_suff = '_product' if product else ''

engine/src/flutter/tools/fuchsia/copy_path.py

@@ -0,0 +1,68 @@
+#!/usr/bin/env python3
+#
+# Copyright 2013 The Flutter Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+""" Copies paths, creates if they do not exist.
+"""
+
+import argparse
+import errno
+import json
+import os
+import platform
+import shutil
+import subprocess
+import sys
+
+
+def EnsureParentExists(path):
+  dir_name, _ = os.path.split(path)
+  if not os.path.exists(dir_name):
+    os.makedirs(dir_name)
+
+
+def SameStat(s1, s2):
+  return s1.st_ino == s2.st_ino and s1.st_dev == s2.st_dev
+
+
+def SameFile(f1, f2):
+  if not os.path.exists(f2):
+    return False
+  s1 = os.stat(f1)
+  s2 = os.stat(f2)
+  return SameStat(s1, s2)
+
+
+def CopyPath(src, dst):
+  try:
+    EnsureParentExists(dst)
+    shutil.copytree(src, dst)
+  except OSError as exc:
+    if exc.errno == errno.ENOTDIR:
+      if not SameFile(src, dst):
+        shutil.copyfile(src, dst)
+    else:
+      raise
+
+
+def main():
+  parser = argparse.ArgumentParser()
+
+  parser.add_argument('--file-list', dest='file_list', action='store', required=True)
+
+  args = parser.parse_args()
+
+  files = open(args.file_list, 'r')
+  files_to_copy = files.read().split()
+  num_files = len(files_to_copy) // 2
+
+  for i in range(num_files):
+    CopyPath(files_to_copy[i], files_to_copy[num_files + i])
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())