Audit the destructors of classes derived from net::URLRequestContextGetter

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 076f27d1f50784c7d29898a95219750c64111297..385b0feefa714de94f68a39e20b726d41aabce67 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -119,6 +119,9 @@ class TestExtensionURLRequestContextGetter
     return BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
   }
 
+ protected:
+  virtual ~TestExtensionURLRequestContextGetter() {}
+
  private:
   scoped_refptr<net::URLRequestContext> context_;
 };