Revert of mojo: make libmojo_public_test_support a static library.

mojo/mojo_public.gyp

 # Copyright 2014 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.
 
 {
   'includes': [
     'mojo_variables.gypi',
   ],
   'target_defaults' : {
     'include_dirs': [
@@ skipping 313 matching lines @@
       # target's configuration.
       'target_name': 'mojo_interface_bindings_generation',
       'type': 'none',
       'dependencies': [
         'mojo_interface_bindings_cpp_sources',
       ],
     },
     {
       # GN version: //mojo/public/c/test_support
       'target_name': 'mojo_public_test_support',
-      'type': 'static_library',
+      'defines': [
+        'MOJO_TEST_SUPPORT_IMPLEMENTATION',
+      ],
       'include_dirs': [
         '..',
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '..',
         ],
       },
       'sources': [
         'public/c/test_support/test_support.h',
+        'public/c/test_support/test_support_export.h',
         # TODO(vtl): Convert this to thunks http://crbug.com/386799
         'public/tests/test_support_private.cc',
         'public/tests/test_support_private.h',
       ],
+      'conditions': [
+        ['OS=="ios"', {
+          'type': 'static_library',
+        }, {
+          'type': 'shared_library',
+        }],
+        ['OS=="mac"', {
+          'xcode_settings': {
+            # Make it a run-path dependent library.
+            'DYLIB_INSTALL_NAME_BASE': '@loader_path',
+          },
+        }],
+      ],
     },
     {
       # GN version: //mojo/public/cpp/test_support:test_utils
       'target_name': 'mojo_public_test_utils',
       'type': 'static_library',
       'dependencies': [
         '../base/base.gyp:base',
         '../testing/gtest.gyp:gtest',
         'mojo_public_test_support',
       ],
@@ skipping 168 matching lines @@
              'mojo_interface_bindings_java_sources',
              'mojo_public_java',
              '<(DEPTH)/base/base.gyp:base_java',
            ],
            'includes': [ '../build/java.gypi' ],
         },
       ],
     }],
   ],
 }