Made conversions from PassRefPtr to WebPrivatePtr move only.

third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp

Index: third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp
diff --git a/third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp b/third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp
index 2d402aff185b8c1277bd494a71eac76a5d54112b..1b779d92fea3bb594fb5396e5ea79f7913d9ba53 100644
--- a/third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp
+++ b/third_party/WebKit/Source/platform/exported/WebCryptoResult.cpp
@@ -83,7 +83,7 @@ bool WebCryptoResult::Cancelled() const {
 
 WebCryptoResult::WebCryptoResult(CryptoResult* impl,
                                  PassRefPtr<CryptoResultCancel> cancel)
-    : impl_(impl), cancel_(cancel) {
+    : impl_(impl), cancel_(std::move(cancel)) {
   DCHECK(impl_.Get());
   DCHECK(cancel_.Get());
 }