ios: fix iossim path

scripts/slave/recipe_modules/ios/api.py

 # 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.
 
 import copy
 
 from recipe_engine import recipe_api
 
 
 class iOSApi(recipe_api.RecipeApi):
@@ skipping 389 matching lines @@
         cmd.extend([
           '--test-host', test['app'],
           '--dummyproj', self.package_repo_resource(
             'scripts', 'slave', 'ios', 'TestProject', 'TestProject.xcodeproj'),
         ])
 
       step_name = test['app']
 
       if self.platform == 'simulator':
         cmd.extend([
-          '--iossim', self.m.path['slave_build'].join(self.most_recent_iossim),
+          '--iossim', self.most_recent_iossim,
           '--platform', test['device type'],
           '--version', test['os'],
         ])
 
         # Since we may be running simulator tests on multiple platforms,
         # include the platform and OS in the name of the step.
         step_name = '%s (%s iOS %s)' % (
           test['app'],
           test['device type'],
           test['os'],
@@ skipping 78 matching lines @@
       '--out-dir', '${ISOLATED_OUTDIR}',
       '--xcode-version', '<(xcode_version)',
     ]
     files = [
       # .apps are directories. Need the trailing slash to isolate the
       # contents of a directory.
       '<(app_path)/',
       'src/ios/build/bots/scripts/',
     ]
     if self.platform == 'simulator':
-      iossim = self.m.path.join(self.most_recent_iossim)
+      iossim = self.most_recent_iossim
       cmd.extend([
         '--iossim', iossim,
         '--platform', '<(platform)',
         '--version', '<(version)',
       ])
       files.append(iossim)
     isolate_template_contents = {
       'conditions': [
         ['OS == "ios"', {
           'variables': {
@@ skipping 229 matching lines @@
     # out/Debug-iphonesimulator/iossim
     # out/Release-iphoneos/iossim
     # out/Release-iphonesimulator/iossim
 
     platform = {
       'device': 'iphoneos',
       'simulator': 'iphonesimulator',
     }[self.platform]
 
     return {
-      'xcodebuild': self.m.path.join(
-        'src',
+      'xcodebuild': self.m.path['checkout'].join(
         build_dir,
         self.configuration,
         'iossim',
       ),
-      'ninja': self.m.path.join(
-        'src',
+      'ninja': self.m.path['checkout'].join(
          build_dir,
          '%s-%s' % (self.configuration, platform),
          'iossim',
       ),
     }[self.compiler]