Everywhere: Drop "shared_buffer" in most GUI programs, pledge "recvfd"

Now that WindowServer broadcasts the system theme using an anonymous
file, we need clients to pledge "recvfd" so they can receive it.

Some programs keep the "shared_buffer" pledge since it's still used for
a handful of things.

Userland/Demos/CatDog/main.cpp

@@ -194,7 +194,7 @@ private:
 
 int main(int argc, char** argv)
 {
-    if (pledge("stdio sendfd rpath wpath cpath sendfd shared_buffer accept unix fattr", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath wpath cpath accept unix fattr", nullptr) < 0) {
         perror("pledge");
         return 1;
     }
@@ -202,7 +202,7 @@ int main(int argc, char** argv)
     auto app = GUI::Application::construct(argc, argv);
     auto app_icon = GUI::Icon::default_icon("app-catdog");
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/Cube/Cube.cpp

@@ -193,7 +193,7 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/Eyes/main.cpp

@@ -49,14 +49,14 @@ int main(int argc, char* argv[])
     args_parser.add_option(grid_columns, "Number of columns in grid (incompatible with --number)", "grid-cols", 'c', "number");
     args_parser.parse(argc, argv);
 
-    if (pledge("stdio sendfd shared_buffer accept rpath unix cpath wpath fattr thread", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd accept rpath unix cpath wpath fattr thread", nullptr) < 0) {
         perror("pledge");
         return 1;
     }
 
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd shared_buffer accept rpath cpath wpath thread", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd accept rpath cpath wpath thread", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/Fire/Fire.cpp

@@ -216,7 +216,7 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/LibGfxDemo/main.cpp

@@ -200,7 +200,7 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/LibGfxScaleDemo/main.cpp

@@ -96,7 +96,7 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/Mouse/main.cpp

@@ -174,7 +174,7 @@ int main(int argc, char** argv)
     auto app = GUI::Application::construct(argc, argv);
     auto app_icon = GUI::Icon::default_icon("app-mouse");
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/Screensaver/Screensaver.cpp

@@ -124,14 +124,14 @@ void Screensaver::draw()
 
 int main(int argc, char** argv)
 {
-    if (pledge("stdio rpath wpath cpath sendfd shared_buffer cpath unix fattr", nullptr) < 0) {
+    if (pledge("stdio rpath wpath cpath recvfd sendfd cpath unix fattr", nullptr) < 0) {
         perror("pledge");
         return 1;
     }
 
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio rpath sendfd shared_buffer", nullptr) < 0) {
+    if (pledge("stdio rpath recvfd sendfd", nullptr) < 0) {
         perror("pledge");
         return 1;
     }

Userland/Demos/WidgetGallery/main.cpp

@@ -86,7 +86,7 @@ int main(int argc, char** argv)
 {
     auto app = GUI::Application::construct(argc, argv);
 
-    if (pledge("stdio sendfd rpath shared_buffer", nullptr) < 0) {
+    if (pledge("stdio recvfd sendfd rpath", nullptr) < 0) {
         perror("pledge");
         return 1;
     }