[iOS][GN] Port ios_web_unittests to build with gn

Add template to run a java command as an "script", i.e. templates
java_action/java_action_foreach similar to action/action_foreach.

Add template to compile a bunch of JavaScript to a bundle and to
compile JavaScript files with closure compile (only enable checks
that are known to work).

Fix gcdwebserver public configuration to add the dependency on libz
to libs instead of using ldflags.

Add files missing from //ui/base:test_support when building for iOS
with gn (they are present in the gyp build).

BUG=459705

Review URL: https://codereview.chromium.org/1393303003

Cr-Commit-Position: refs/heads/master@{#355460}

1 files changed, 82 insertions, 0 deletions

diff --git a/build/util/java_action.py b/build/util/java_action.py
new file mode 100755
index 0000000..abf084c
--- /dev/null
+++ b/build/util/java_action.py
@@ -0,0 +1,82 @@
+#!/usr/bin/python
+# Copyright 2015 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.
+
+"""Wrapper script to run java command as action with gn."""
+
+import os
+import subprocess
+import sys
+
+EXIT_SUCCESS = 0
+EXIT_FAILURE = 1
+
+
+def IsExecutable(path):
+  """Returns whether file at |path| exists and is executable.
+
+  Args:
+    path: absolute or relative path to test.
+
+  Returns:
+    True if the file at |path| exists, False otherwise.
+  """
+  return os.path.isfile(path) and os.access(path, os.X_OK)
+
+
+def FindCommand(command):
+  """Looks up for |command| in PATH.
+
+  Args:
+    command: name of the command to lookup, if command is a relative or
+      absolute path (i.e. contains some path separator) then only that
+      path will be tested.
+
+  Returns:
+    Full path to command or None if the command was not found.
+
+    On Windows, this respects the PATHEXT environment variable when the
+    command name does not have an extension.
+  """
+  fpath, _ = os.path.split(command)
+  if fpath:
+    if IsExecutable(command):
+      return command
+
+  if sys.platform == 'win32':
+    # On Windows, if the command does not have an extension, cmd.exe will
+    # try all extensions from PATHEXT when resolving the full path.
+    command, ext = os.path.splitext(command)
+    if not ext:
+      exts = os.environ['PATHEXT'].split(os.path.pathsep)
+    else:
+      exts = [ext]
+  else:
+    exts = ['']
+
+  for path in os.environ['PATH'].split(os.path.pathsep):
+    for ext in exts:
+      path = os.path.join(path, command) + ext
+      if IsExecutable(path):
+        return path
+
+  return None
+
+
+def main():
+  java_path = FindCommand('java')
+  if not java_path:
+    sys.stderr.write('java: command not found\n')
+    sys.exit(EXIT_FAILURE)
+
+  args = sys.argv[1:]
+  if len(args) < 2 or args[0] != '-jar':
+    sys.stderr.write('usage: %s -jar JARPATH [java_args]...\n' % sys.argv[0])
+    sys.exit(EXIT_FAILURE)
+
+  return subprocess.check_call([java_path] + args)
+
+
+if __name__ == '__main__':
+  sys.exit(main())