gyp: <(GENERATOR) is now always ninja, so simplify some conditionals.

ios/chrome/tools/strings/generate_localizable_strings.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.
 
 # Builds an OS X command line tool to generate Localizable.strings and
 # InfoPlist.strings from compiled locales.pak.
 
 {
-  'conditions': [
-    ['OS!="ios" or "<(GENERATOR)"!="xcode" or "<(GENERATOR_FLAVOR)"=="ninja"', {
-      'targets': [
-        {
-          'target_name': 'generate_localizable_strings',
-          'type': 'executable',
-          'toolsets': ['host'],
-          'dependencies': [
-            '../../../../base/base.gyp:base',
-            '../../../../ui/base/ui_base.gyp:ui_data_pack',
-          ],
-          'sources': [
-            'generate_localizable_strings.mm',
-          ],
-          'libraries': [
-            '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
-          ],
-        },
+  'targets': [
+    {
+      'target_name': 'generate_localizable_strings',
+      'type': 'executable',
+      'toolsets': ['host'],
+      'dependencies': [
+        '../../../../base/base.gyp:base',
+        '../../../../ui/base/ui_base.gyp:ui_data_pack',
       ],
-    }, {  # else, OS=="ios" and "<(GENERATOR)"=="xcode" and "<(GENERATOR_FLAVOR)"!="ninja"
-      # Generation is done via two actions: (1) compiling the executable with
-      # ninja, and (2) copying the executable into a location that is shared
-      # with other projects. These actions are separated into two targets in
-      # order to be able to specify that the second action should not run until
-      # the first action finishes (since the ordering of multiple actions in
-      # one target is defined only by inputs and outputs, and it's impossible
-      # to set correct inputs for the ninja build, so setting all the inputs
-      # and outputs isn't an option).
-      'variables': {
-        # Hardcode the ninja_product_dir variable to avoid having to include
-        # mac_build.gypi, as otherwise the re-generation of the project will
-        # happen twice while running gyp. It's a bit fragile, but if it gets
-        # out of sync we'll know as soon as anyone does a clobber build
-        # because it won't find the input.
-        'ninja_output_dir': 'ninja-localizable_string_tool',
-        'ninja_product_dir':
-          '../../../../xcodebuild/<(ninja_output_dir)/<(CONFIGURATION_NAME)',
-        # Gyp to rerun
-        're_run_targets': [
-          'ios/chrome/tools/strings/generate_localizable_strings.gyp',
-        ],
-      },
-      'targets': [
-        {
-          'target_name': 'compile_generate_localizable_strings',
-          'type': 'none',
-          'includes': ['../../../../build/ios/mac_build.gypi'],
-          'actions': [
-            {
-              'action_name': 'compile generate_localizable_strings',
-              'inputs': [],
-              'outputs': [],
-              'action': [
-                '<@(ninja_cmd)',
-                'generate_localizable_strings',
-              ],
-              'message':
-                'Generating the generate_localizable_strings executable',
-            },
-          ],
-        },
-        {
-          'target_name': 'generate_localizable_strings',
-          'type': 'none',
-          'dependencies': [
-            'compile_generate_localizable_strings',
-          ],
-          'actions': [
-            {
-              'action_name': 'copy generate_localizable_strings',
-              'inputs': [
-                '<(ninja_product_dir)/generate_localizable_strings',
-              ],
-              'outputs': [
-                '<(PRODUCT_DIR)/generate_localizable_strings',
-              ],
-              'action': [
-                'cp',
-                '<(ninja_product_dir)/generate_localizable_strings',
-                '<(PRODUCT_DIR)/generate_localizable_strings',
-              ],
-            },
-          ],
-        },
+      'sources': [
+        'generate_localizable_strings.mm',
       ],
-    }],
+      'libraries': [
+        '$(SDKROOT)/System/Library/Frameworks/Foundation.framework',
+      ],
+    },
   ],
 }