[iOS] Remove dependency on //mojo on iOS due to build failure.

build/all.gyp

 # 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.
 
 {
   'variables': {
     # A hook that can be overridden in other repositories to add additional
     # compilation targets to 'All'.
     'app_targets%': [],
     # For Android-specific targets.
@@ skipping 38 matching lines @@
         }],
         ['OS=="ios"', {
           'dependencies': [
             '../ios/ios.gyp:*',
             # NOTE: This list of targets is present because
             # mojo_base.gyp:mojo_base cannot be built on iOS, as
             # javascript-related targets cause v8 to be built.
             '../mojo/mojo_base.gyp:mojo_common_lib',
             '../mojo/mojo_base.gyp:mojo_common_unittests',
             '../mojo/mojo_edk.gyp:mojo_system_impl',
-            '../mojo/mojo_edk_tests.gyp:mojo_public_bindings_unittests',
+            # TODO(crbug.com/605508): http://crrev.com/1832703002 introduced
+            # a dependency on //third_party/WebKit that cause build failures
+            # when using Xcode version of clang (loading clang plugin fails).
+            # '../mojo/mojo_edk_tests.gyp:mojo_public_bindings_unittests',
             '../mojo/mojo_edk_tests.gyp:mojo_public_system_unittests',
             '../mojo/mojo_edk_tests.gyp:mojo_system_unittests',
             '../mojo/mojo_public.gyp:mojo_cpp_bindings',
             '../mojo/mojo_public.gyp:mojo_public_test_utils',
             '../mojo/mojo_public.gyp:mojo_system',
             '../google_apis/google_apis.gyp:google_apis_unittests',
             '../skia/skia_tests.gyp:skia_unittests',
             '../ui/base/ui_base_tests.gyp:ui_base_unittests',
             '../ui/gfx/gfx_tests.gyp:gfx_unittests',
           ],
@@ skipping 1306 matching lines @@
           'dependencies': [
             '../ui/views/examples/examples.gyp:views_examples_with_content_exe',
             '../ui/views/views.gyp:views',
             '../ui/views/views.gyp:views_unittests',
           ],
         },  # target_name: macviews_builder
       ],  # targets
     }],  # os=='mac' and toolkit_views==1
   ],  # conditions
 }