Make ios_web_shell_test build for xcode-ninja.

ios/web/ios_web_shell_tests.gyp

 # Copyright 2016 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'conditions': [
     # The iOS frameworks being built for ios_web_shell_test require certs which
-    # bot do not currently have installed.  Ninja allows this, Xcode does not.
-    ['"<(GENERATOR)"=="ninja"', {
+    # bots do not currently have installed.  Ninja allows this, Xcode does not.
+    ['"<(GENERATOR)"=="ninja" or "<(GENERATOR_FLAVOR)"=="ninja"', {
       'targets': [
         {
           'variables': {
             'test_host': 'ios_web_shell.app/ios_web_shell',
           },
           'target_name': 'ios_web_shell_test',
           'type': 'loadable_module',
           'mac_xctest_bundle': 1,
           'dependencies': [
             '../third_party/earl_grey/earl_grey.gyp:EarlGrey',
@@ skipping 18 matching lines @@
             'libraries': [
               'CoreGraphics.framework',
               'Foundation.framework',
               'QuartzCore.framework',
               'UIKit.framework',
               'XCTest.framework',
             ],
           },
         },
       ],
-    }, { # GENERATOR != ninja
+    }, { # GENERATOR == ninja or GENERATOR_FLAVOR == ninja
       'targets': [
         {
           # The iOS frameworks being built for ios_web_shell_test require certs
           # which bot do not currently have installed.  Ninja allows this, Xcode
           # does not.
           'target_name': 'ios_web_shell_test',
           'type': 'none',
         },
       ],
     }],
   ],
 }