[NaCl SDK] Don't include gtest/gmock in library form

native_client_sdk/src/examples/tutorial/testing/example.dsc

Index: native_client_sdk/src/examples/tutorial/testing/example.dsc
diff --git a/native_client_sdk/src/examples/tutorial/testing/example.dsc b/native_client_sdk/src/examples/tutorial/testing/example.dsc
index 284ec46ab992108dcbd4948b676fc392b41100ce..07f1fbc7ea10567685e4375a879f990cd0171d7a 100644
--- a/native_client_sdk/src/examples/tutorial/testing/example.dsc
+++ b/native_client_sdk/src/examples/tutorial/testing/example.dsc
@@ -6,7 +6,9 @@
       'NAME' : 'testing',
       'TYPE' : 'main',
       'SOURCES' : ['testing.cc'],
-      'LIBS' : ['ppapi_simple_cpp', 'ppapi_cpp', 'ppapi', 'gtest', 'nacl_io', 'pthread'],
+      'LIBS' : ['ppapi_simple_cpp', 'ppapi_cpp', 'ppapi', 'nacl_io', 'pthread'],
+      'INCLUDES': ['../../../src/gtest/include', '../../../src/gtest'],
+      'EXTRA_SOURCES' : ['../../../src/gtest/src/gtest-all.cc'],
       'CXXFLAGS': ['-Wno-sign-compare']
     }
   ],