TestRunner library classes should be marked as NonCopyable.

Source/testing/runner/MockWebCrypto.h

Index: Source/testing/runner/MockWebCrypto.h
diff --git a/Source/testing/runner/MockWebCrypto.h b/Source/testing/runner/MockWebCrypto.h
index d1bdb22877d53bde4b7a0d7df69a601ec76c2c18..2a3d0eb57ad13614aa4d5f1f04b8e035e1f2793c 100644
--- a/Source/testing/runner/MockWebCrypto.h
+++ b/Source/testing/runner/MockWebCrypto.h
@@ -33,10 +33,11 @@
 
 #include "TestCommon.h"
 #include "public/platform/WebCrypto.h"
+#include "public/platform/WebNonCopyable.h"
 
 namespace WebTestRunner {
 
-class MockWebCrypto : public WebKit::WebCrypto {
+class MockWebCrypto : public WebKit::WebCrypto, public WebKit::WebNonCopyable {
 public:
     static MockWebCrypto* get();