Change visibility of the destructor to public.

testing/platform_test.h

Index: testing/platform_test.h
diff --git a/testing/platform_test.h b/testing/platform_test.h
index f10a938ab63ea851c8afe6236455330a51d59848..04fc845bd99bb1f19421834ee0ca6371eee37ef3 100644
--- a/testing/platform_test.h
+++ b/testing/platform_test.h
@@ -20,9 +20,11 @@ class NSAutoreleasePool;
 // implemented on the Mac.  To enable this for another platform, just adjust
 // the #ifdefs and add a platform_test_<platform>.cc implementation file.
 class PlatformTest : public testing::Test {
+ public:
+  virtual ~PlatformTest();
+
  protected:
   PlatformTest();
-  virtual ~PlatformTest();
 
  private:
   NSAutoreleasePool* pool_;