Remove OwnPtr from Blink.

third_party/WebKit/Source/platform/network/HTTPHeaderMap.h

Index: third_party/WebKit/Source/platform/network/HTTPHeaderMap.h
diff --git a/third_party/WebKit/Source/platform/network/HTTPHeaderMap.h b/third_party/WebKit/Source/platform/network/HTTPHeaderMap.h
index 320758349a9593681ef1d4783069a08ca7a80b29..f87f2554e8fc6e991bd4978aa7acb1af796b12f4 100644
--- a/third_party/WebKit/Source/platform/network/HTTPHeaderMap.h
+++ b/third_party/WebKit/Source/platform/network/HTTPHeaderMap.h
@@ -30,11 +30,11 @@
 #include "platform/PlatformExport.h"
 #include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
-#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 #include "wtf/text/AtomicString.h"
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/StringHash.h"
+#include <memory>
 #include <utility>
 
 namespace blink {
@@ -49,9 +49,9 @@ public:
     ~HTTPHeaderMap();
 
     // Gets a copy of the data suitable for passing to another thread.
-    PassOwnPtr<CrossThreadHTTPHeaderMapData> copyData() const;
+    std::unique_ptr<CrossThreadHTTPHeaderMapData> copyData() const;
 
-    void adopt(PassOwnPtr<CrossThreadHTTPHeaderMapData>);
+    void adopt(std::unique_ptr<CrossThreadHTTPHeaderMapData>);
 
     typedef HashMap<AtomicString, AtomicString, CaseFoldingHash> MapType;
     typedef MapType::AddResult AddResult;