Create a copy of talk/sound under webrtc/sound.

BUG=3379
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/22379004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@6986 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/base/base_tests.gyp b/base/base_tests.gyp
index 3cef102..690932d 100644
--- a/base/base_tests.gyp
+++ b/base/base_tests.gyp
@@ -25,10 +25,18 @@
         'testutils.h',
         'win32toolhelp.h',
       ],
+      'defines': [
+        'GTEST_RELATIVE_PATH',
+      ],
       'dependencies': [
         'base.gyp:webrtc_base',
         '<(DEPTH)/testing/gtest.gyp:gtest',
       ],
+      'direct_dependent_settings': {
+        'defines': [
+          'GTEST_RELATIVE_PATH',
+        ],
+      },
       'export_dependent_settings': [
         '<(DEPTH)/testing/gtest.gyp:gtest',
       ],