Remove OwnPtr from Blink.

third_party/WebKit/Source/wtf/HashFunctions.h

Index: third_party/WebKit/Source/wtf/HashFunctions.h
diff --git a/third_party/WebKit/Source/wtf/HashFunctions.h b/third_party/WebKit/Source/wtf/HashFunctions.h
index 31fc76afbcb80797738e2e417c3b1f2cfbe0d75f..569282b3f780f291ff10230d0b190f7cea5e2576 100644
--- a/third_party/WebKit/Source/wtf/HashFunctions.h
+++ b/third_party/WebKit/Source/wtf/HashFunctions.h
@@ -21,7 +21,6 @@
 #ifndef WTF_HashFunctions_h
 #define WTF_HashFunctions_h
 
-#include "wtf/OwnPtr.h"
 #include "wtf/RefPtr.h"
 #include "wtf/StdLibExtras.h"
 #include <memory>
@@ -155,18 +154,6 @@ struct RefPtrHash : PtrHash<T> {
 };
 
 template <typename T>
-struct OwnPtrHash : PtrHash<T> {
-    using PtrHash<T>::hash;
-    static unsigned hash(const OwnPtr<T>& key) { return hash(key.get()); }
-
-    static bool equal(const OwnPtr<T>& a, const OwnPtr<T>& b)
-    {
-        return a.get() == b.get();
-    }
-    static bool equal(const OwnPtr<T>& a, T* b) { return a == b; }
-};
-
-template <typename T>
 struct UniquePtrHash : PtrHash<T> {
     using PtrHash<T>::hash;
     static unsigned hash(const std::unique_ptr<T>& key) { return hash(key.get()); }
@@ -215,10 +202,6 @@ struct DefaultHash<RefPtr<T>> {
     using Hash = RefPtrHash<T>;
 };
 template <typename T>
-struct DefaultHash<OwnPtr<T>> {
-    using Hash = OwnPtrHash<T>;
-};
-template <typename T>
 struct DefaultHash<std::unique_ptr<T>> {
     using Hash = UniquePtrHash<T>;
 };