Update idlsync.py to pull in dependencies required for chrome api generation.

third_party/chrome/tools/util_cc_helper.py

-# Copyright (c) 2012 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.
-
-API_UTIL_NAMESPACE = 'json_schema_compiler::util'
-
-class UtilCCHelper(object):
-  """A util class that generates code that uses
-  tools/json_schema_compiler/util.cc.
-  """
-  def __init__(self, type_manager):
-    self._type_manager = type_manager
-
-  def PopulateArrayFromDictionary(self, array_prop, src, name, dst):
-    """Generates code to get an array from a src.name into dst.
-
-    src: DictionaryValue*
-    dst: std::vector or scoped_ptr<std::vector>
-    """
-    prop = array_prop.item_type
-    sub = {
-        'namespace': API_UTIL_NAMESPACE,
-        'name': name,
-        'src': src,
-        'dst': dst,
-    }
-
-    sub['type'] = self._type_manager.GetCppType(prop),
-    if array_prop.optional:
-      val = ('%(namespace)s::PopulateOptionalArrayFromDictionary'
-          '(*%(src)s, "%(name)s", &%(dst)s)')
-    else:
-      val = ('%(namespace)s::PopulateArrayFromDictionary'
-          '(*%(src)s, "%(name)s", &%(dst)s)')
-
-    return val % sub
-
-  def PopulateArrayFromList(self, array_prop, src, dst, optional):
-    """Generates code to get an array from src into dst.
-
-    src: ListValue*
-    dst: std::vector or scoped_ptr<std::vector>
-    """
-    prop = array_prop.item_type
-    sub = {
-        'namespace': API_UTIL_NAMESPACE,
-        'src': src,
-        'dst': dst,
-        'type': self._type_manager.GetCppType(prop),
-    }
-
-    if optional:
-      val = '%(namespace)s::PopulateOptionalArrayFromList(*%(src)s, &%(dst)s)'
-    else:
-      val = '%(namespace)s::PopulateArrayFromList(*%(src)s, &%(dst)s)'
-
-    return val % sub
-
-  def CreateValueFromArray(self, array_prop, src, optional):
-    """Generates code to create a scoped_pt<Value> from the array at src.
-
-    src: std::vector or scoped_ptr<std::vector>
-    """
-    prop = array_prop.item_type
-    sub = {
-        'namespace': API_UTIL_NAMESPACE,
-        'src': src,
-        'type': self._type_manager.GetCppType(prop),
-    }
-
-    if optional:
-      val = '%(namespace)s::CreateValueFromOptionalArray(%(src)s)'
-    else:
-      val = '%(namespace)s::CreateValueFromArray(%(src)s)'
-
-    return val % sub
-
-  def GetIncludePath(self):
-    return '#include "tools/json_schema_compiler/util.h"'