Replaced PassRefPtr copies with moves in Source/core.

third_party/WebKit/Source/core/frame/History.h

Index: third_party/WebKit/Source/core/frame/History.h
diff --git a/third_party/WebKit/Source/core/frame/History.h b/third_party/WebKit/Source/core/frame/History.h
index d1729fc0a79fe752484ab1e0caf122636c491bf3..d46265bf24e7f54f0679956f7daa7195982f5090 100644
--- a/third_party/WebKit/Source/core/frame/History.h
+++ b/third_party/WebKit/Source/core/frame/History.h
@@ -60,12 +60,12 @@ public:
 
     void pushState(PassRefPtr<SerializedScriptValue> data, const String& title, const String& url, ExceptionState& exceptionState)
     {
-        stateObjectAdded(data, title, url, scrollRestorationInternal(), FrameLoadTypeStandard, exceptionState);
+        stateObjectAdded(std::move(data), title, url, scrollRestorationInternal(), FrameLoadTypeStandard, exceptionState);
     }
 
     void replaceState(PassRefPtr<SerializedScriptValue> data, const String& title, const String& url, ExceptionState& exceptionState)
     {
-        stateObjectAdded(data, title, url, scrollRestorationInternal(), FrameLoadTypeReplaceCurrentItem, exceptionState);
+        stateObjectAdded(std::move(data), title, url, scrollRestorationInternal(), FrameLoadTypeReplaceCurrentItem, exceptionState);
     }
 
     void setScrollRestoration(const String& value);