Remove OwnPtr from Blink.

third_party/WebKit/Source/core/loader/FrameLoader.h

Index: third_party/WebKit/Source/core/loader/FrameLoader.h
diff --git a/third_party/WebKit/Source/core/loader/FrameLoader.h b/third_party/WebKit/Source/core/loader/FrameLoader.h
index 7334fb6928b48a7447adc865284c0b4be74537a0..127d12b75c152d8954bc577e112b1058b4ee0747 100644
--- a/third_party/WebKit/Source/core/loader/FrameLoader.h
+++ b/third_party/WebKit/Source/core/loader/FrameLoader.h
@@ -49,6 +49,7 @@
 #include "public/platform/WebInsecureRequestPolicy.h"
 #include "wtf/Forward.h"
 #include "wtf/HashSet.h"
+#include <memory>
 
 namespace blink {
 
@@ -221,12 +222,12 @@ private:
 
     void detachDocumentLoader(Member<DocumentLoader>&);
 
-    PassOwnPtr<TracedValue> toTracedValue() const;
+    std::unique_ptr<TracedValue> toTracedValue() const;
     void takeObjectSnapshot() const;
 
     Member<LocalFrame> m_frame;
 
-    // FIXME: These should be OwnPtr<T> to reduce build times and simplify
+    // FIXME: These should be std::unique_ptr<T> to reduce build times and simplify
     // header dependencies unless performance testing proves otherwise.
     // Some of these could be lazily created for memory savings on devices.
     mutable FrameLoaderStateMachine m_stateMachine;