LibIPC+Services: Support URL as a native IPC type

Libraries/LibDesktop/Launcher.cpp

@@ -54,7 +54,7 @@ private:
 bool Launcher::open(const URL& url, const String& handler_name)
 {
     auto connection = LaunchServerConnection::construct();
-    return connection->send_sync<Messages::LaunchServer::OpenUrl>(url.to_string(), handler_name)->response();
+    return connection->send_sync<Messages::LaunchServer::OpenURL>(url, handler_name)->response();
 }
 
 Vector<String> Launcher::get_handlers_for_url(const URL& url)

Libraries/LibIPC/Decoder.cpp

@@ -25,6 +25,7 @@
  */
 
 #include <AK/BufferStream.h>
+#include <AK/URL.h>
 #include <LibIPC/Decoder.h>
 #include <LibIPC/Dictionary.h>
 
@@ -113,6 +114,15 @@ bool Decoder::decode(String& value)
     return !m_stream.handle_read_failure();
 }
 
+bool Decoder::decode(URL& value)
+{
+    String string;
+    if (!decode(string))
+        return false;
+    value = URL(string);
+    return true;
+}
+
 bool Decoder::decode(Dictionary& dictionary)
 {
     u64 size = 0;
@@ -136,13 +146,4 @@ bool Decoder::decode(Dictionary& dictionary)
     return true;
 }
 
-void dongle() {
-    ByteBuffer buffer;
-    BufferStream stream(buffer);
-    Decoder d(stream);
-    Vector<String> x;
-    d.decode(x);
-}
-
-
 }

Libraries/LibIPC/Decoder.h

@@ -60,6 +60,7 @@ public:
     bool decode(i64&);
     bool decode(float&);
     bool decode(String&);
+    bool decode(URL&);
     bool decode(Dictionary&);
 
     template<typename T>

Libraries/LibIPC/Encoder.cpp

@@ -25,6 +25,7 @@
  */
 
 #include <AK/String.h>
+#include <AK/URL.h>
 #include <LibIPC/Dictionary.h>
 #include <LibIPC/Encoder.h>
 
@@ -140,6 +141,11 @@ Encoder& Encoder::operator<<(const String& value)
     return *this << value.view();
 }
 
+Encoder& Encoder::operator<<(const URL& value)
+{
+    return *this << value.to_string();
+}
+
 Encoder& Encoder::operator<<(const Dictionary& dictionary)
 {
     *this << (u64)dictionary.size();

Libraries/LibIPC/Encoder.h

@@ -58,6 +58,7 @@ public:
     Encoder& operator<<(const char*);
     Encoder& operator<<(const StringView&);
     Encoder& operator<<(const String&);
+    Encoder& operator<<(const URL&);
     Encoder& operator<<(const Dictionary&);
 
     template<typename T>