[GPUP][CMake] Install GPUProcess for the non-mac ports with ENABLE_GP…

…U_PROCESS=ON

https://bugs.webkit.org/show_bug.cgi?id=265256

Reviewed by Adrian Perez de Castro.

Install the GPUProcess cmake target if the ENABLE_GPU_PROCESS is set to
ON for the non-Mac ports. This makes the binary available in the installation
target directory.

* Source/WebKit/CMakeLists.txt:

Canonical link: https://commits.webkit.org/271066@main

Source/WebKit/CMakeLists.txt

@@ -921,4 +921,10 @@ else ()
         LIBRARY DESTINATION "${LIB_INSTALL_DIR}"
         RUNTIME DESTINATION "${LIBEXEC_INSTALL_DIR}"
     )
+    if (ENABLE_GPU_PROCESS)
+        install(TARGETS GPUProcess
+            LIBRARY DESTINATION "${LIB_INSTALL_DIR}"
+            RUNTIME DESTINATION "${LIBEXEC_INSTALL_DIR}"
+        )
+    endif ()
 endif ()