Added an iOS Device ninja build.

masters/master.chromium.fyi/master.cfg

Index: masters/master.chromium.fyi/master.cfg
diff --git a/masters/master.chromium.fyi/master.cfg b/masters/master.chromium.fyi/master.cfg
index 3b95553874053de506050313655c49f30071d7e1..5b7c6ae65d7d96ce689e4b6211b54c1f9d545262 100644
--- a/masters/master.chromium.fyi/master.cfg
+++ b/masters/master.chromium.fyi/master.cfg
@@ -1318,6 +1318,23 @@ f_chromium_rel_ios_device = ios().ChromiumFactory(
         },
     })
 
+f_chromium_rel_ninja_ios_device = ios().ChromiumFactory(
+  clobber=True,
+  # TODO(lliabraa): Need to upstream support for running tests on devices
+  # before we can actually run any tests.
+  tests=[],
+  options = ['--build-tool=ninja'],
+  factory_properties={
+    'app_name': 'Chromium.app',
+    'gclient_deps': 'ios',
+    'gclient_env': {
+      'GYP_CROSSCOMPILE': '1',
+      'GYP_GENERATORS': 'ninja',
+      'GYP_DEFINES': 'component=static_library OS=ios clang=1',
+      },
+    })
+
+
 f_chromium_linux_goma_canary = linux().ChromiumFactory(
     slave_type='BuilderTester',
     target='Release',
@@ -1962,6 +1979,13 @@ b_chromium_rel_ios_device = {
   'auto_reboot': False,
 }
 
+b_chromium_rel_ninja_ios_device = {
+  'name': 'Chromium iOS Device (ninja)',
+  'factory': f_chromium_rel_ninja_ios_device,
+  'category': 'ios',
+  'auto_reboot': False,
+}
+
 b_chromium_rel_linux_browser_valgrind_builder = {
   'name': 'Chromium Linux Browser Builder (valgrind)',
   'builddir': 'chromium-rel-linux-browser-valgrind-builder',
@@ -2247,6 +2271,7 @@ c['builders'] = [
   # iOS
   b_chromium_dbg_ios_simulator,
   b_chromium_rel_ios_device,
+  b_chromium_rel_ninja_ios_device,
 
   # TSAN
   b_chromium_dbg_win_tsan,