macos: embed Info.plist in subprocess binary via -sectcreate

Replace the broken SubprocessMacInit() runtime injection approach with
a reliable compile-time solution: embed Info.plist in the subprocess
Mach-O binary using the -sectcreate __TEXT __info_plist linker flag.

CoreFoundation reads the __TEXT,__info_plist section automatically, so
CFBundleGetMainBundle() returns CFBundleIdentifier = "org.cefpython"
without any runtime code. This matches the service name the browser
process registers with MachPortRendezvousServer, fixing bootstrap_look_up.

The previous approach (CFDictionarySetValue on the info dict) was broken
because CFBundleGetInfoDictionary() returns an immutable CFDictionaryRef
for flat binaries; the set operation silently did nothing.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: linesight

src/subprocess/CMakeLists.txt

@@ -151,10 +151,14 @@ elseif(APPLE)
         "-F${CEFPYTHON_CEF_ROOT}/bin"
         "-framework" "Chromium Embedded Framework"
         "-Wl,-rpath,@loader_path/"
+        # Embed Info.plist so CFBundleGetMainBundle() returns CFBundleIdentifier
+        # = "org.cefpython", matching the service name the browser process
+        # registers with MachPortRendezvousServer.
+        "-sectcreate" "__TEXT" "__info_plist"
+        "${CMAKE_CURRENT_SOURCE_DIR}/Info.plist"
     )
     target_link_libraries(cefpython_subprocess PRIVATE
         "${CEFPYTHON_CEF_ROOT}/lib/libcef_dll_wrapper.a"
-        "-framework CoreFoundation"
     )
 else()
     target_compile_options(cefpython_subprocess PRIVATE -DNDEBUG -O3)

src/subprocess/Info.plist

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+    <key>CFBundleIdentifier</key>
+    <string>org.cefpython</string>
+    <key>CFBundleName</key>
+    <string>cefpython-subprocess</string>
+    <key>CFBundleExecutable</key>
+    <string>subprocess</string>
+</dict>
+</plist>

src/subprocess/main.cpp

@@ -28,23 +28,8 @@ int APIENTRY wWinMain(HINSTANCE hInstance,
 
 #include <string.h>
 
-#if defined(OS_MAC)
-// CEF 130+: MachPortRendezvousClientMac builds the service name as
-//   CFBundleIdentifier + ".MachPortRendezvousServer." + parent_pid
-// The browser process injects CFBundleIdentifier = "org.cefpython" in
-// MacInitialize() before CefInitialize().  This subprocess binary is a flat
-// binary (not an app bundle), so CFBundleGetMainBundle() returns no
-// CFBundleIdentifier, producing a lookup name starting with "." that never
-// matches the registered service.  Call SubprocessMacInit() to inject the
-// same identifier so bootstrap_look_up finds the server.
-extern "C" void SubprocessMacInit();
-#endif
-
 int main(int argc, char **argv)
 {
-#if defined(OS_MAC)
-	SubprocessMacInit();
-#endif
 #if defined(OS_LINUX)
 	// Chrome 130+ passes --pseudonymization-salt-handle to directly-launched
 	// (non-zygote) subprocesses, expecting GlobalDescriptors[key] to be