Make cc_unittests and webkit_compositor_unittests executable always

cc/test/run_all_unittests.cc

Index: cc/test/run_all_unittests.cc
diff --git a/cc/test/run_all_unittests.cc b/cc/test/run_all_unittests.cc
index de5b1c6279dbd2bfb7b6232a82d450c387f881a1..d6c4ba09688c6533095c21652e1184b81bbfbca3 100644
--- a/cc/test/run_all_unittests.cc
+++ b/cc/test/run_all_unittests.cc
@@ -4,14 +4,21 @@
 
 #include <base/test/test_suite.h>
 #include <gmock/gmock.h>
+
+#if defined(USE_LIBCC_FOR_COMPOSITOR)
 #include <webkit/support/webkit_support.h>
+#endif
 
 int main(int argc, char** argv) {
   ::testing::InitGoogleMock(&argc, argv);
   TestSuite testSuite(argc, argv);
+#if defined(USE_LIBCC_FOR_COMPOSITOR)
   webkit_support::SetUpTestEnvironmentForUnitTests();
+#endif
   int result = testSuite.Run();
+#if defined(USE_LIBCC_FOR_COMPOSITOR)
   webkit_support::TearDownTestEnvironment();
+#endif
 
   return result;
 }