Revert of Remove 'blink::WebSerializedOrigin' (1/3)

Source/platform/exported/WebSerializedOrigin.cpp

Index: Source/platform/exported/WebSerializedOrigin.cpp
diff --git a/Source/platform/exported/WebSerializedOrigin.cpp b/Source/platform/exported/WebSerializedOrigin.cpp
index a66cac20b04eb0a780ab7fcd51fee385fe6e0d11..bc90296d55c3bf3b41553fc81434fd28adf6b4a9 100644
--- a/Source/platform/exported/WebSerializedOrigin.cpp
+++ b/Source/platform/exported/WebSerializedOrigin.cpp
@@ -6,7 +6,6 @@
 #include "public/platform/WebSerializedOrigin.h"
 
 #include "platform/weborigin/SecurityOrigin.h"
-#include "public/platform/WebSecurityOrigin.h"
 
 namespace blink {
 
@@ -15,9 +14,4 @@
 {
 }
 
-WebSerializedOrigin::WebSerializedOrigin(const WebSecurityOrigin& origin)
-    : m_string(origin.toString())
-{
-}
-
 } // namespace blink