Add wtf_unittests target that links unit tests outside DLL

Source/config.gyp

 #
 # Copyright (C) 2013 Google Inc. All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 15 matching lines @@
 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #
 {
   'variables': {
     # If set to 1, doesn't compile debug symbols into webcore reducing the
     # size of the binary and increasing the speed of gdb.  gcc only.
     'remove_webcore_debug_symbols%': 0,
   },
-  'targets': [{
+  'targets': [
+  {
     'target_name': 'config',
     'type': 'none',
     'direct_dependent_settings': {
-      'defines': [
-        'WEBKIT_IMPLEMENTATION=1',
+      'include_dirs': [
+        '.'
       ],
       'msvs_disabled_warnings': [
         4138, 4244, 4291, 4305, 4344, 4355, 4521, 4099,
       ],
       'conditions': [
         ['OS=="win" and component=="shared_library"', {
           'defines': [
             'USING_V8_SHARED',
           ],
         }],
@@ skipping 17 matching lines @@
           'cflags': ['-Wno-uninitialized'],
         }],
         ['clang==1', {
           'cflags': ['-Wglobal-constructors'],
           'xcode_settings': {
             'WARNING_CFLAGS': ['-Wglobal-constructors'],
           },
         }],
       ],
     },
-  }],
+  },
+  {
+    'target_name': 'unittest_config',
+    'type': 'none',
+    'dependencies': [
+      'config',
+      '<(DEPTH)/testing/gmock.gyp:gmock',
+      '<(DEPTH)/testing/gtest.gyp:gtest',
+    ],
+    'export_dependent_settings': [
+      'config',
+      '<(DEPTH)/testing/gmock.gyp:gmock',
+      '<(DEPTH)/testing/gtest.gyp:gtest',
+    ],
+    'direct_dependent_settings': {
+      'cflags!': ['-Wglobal-constructors'],
+      'xcode_settings': {
+        'WARNING_CFLAGS!': ['-Wglobal-constructors'],
+      },
+    },
+  }
+  ],
 }