posix: Added option to disable signal handlers

See https://github.com/chromiumembedded/java-cef/issues/477

include/cef_api_hash.h

@@ -42,13 +42,13 @@
 // way that may cause binary incompatibility with other builds. The universal
 // hash value will change if any platform is affected whereas the platform hash
 // values will change only if that particular platform is affected.
-#define CEF_API_HASH_UNIVERSAL "231671a5669eaa29cd2c01a2e459857945c4ea01"
+#define CEF_API_HASH_UNIVERSAL "bb414cc95e84099084c9476c468846e483ef7a0f"
 #if defined(OS_WIN)
-#define CEF_API_HASH_PLATFORM "f8a2808cad9b2250c0a5096c043547f8942e2b7d"
+#define CEF_API_HASH_PLATFORM "1a921f6a2c91bc5369afce001c37645ef726e804"
 #elif defined(OS_MAC)
-#define CEF_API_HASH_PLATFORM "064c88eb32b8b9932d85ed8023a11656647a3ac0"
+#define CEF_API_HASH_PLATFORM "8c96e8a60224dc40ec40067b6a515af79dd47f8f"
 #elif defined(OS_LINUX)
-#define CEF_API_HASH_PLATFORM "e934aa611c47fda69dbef4e46e11255300e37f9c"
+#define CEF_API_HASH_PLATFORM "693e114620a780000fbb7334537145caed271c66"
 #endif
 
 #ifdef __cplusplus

include/internal/cef_types.h

@@ -486,6 +486,13 @@ typedef struct _cef_settings_t {
   /// Windows.
   ///
   int chrome_app_icon_id;
+
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
+  ///
+  /// Specify whether signal handlers must be disabled on POSIX systems.
+  ///
+  bool disable_signal_handlers;
+#endif
 } cef_settings_t;
 
 ///

include/internal/cef_types_wrappers.h

@@ -432,6 +432,10 @@ struct CefSettingsTraits {
     cef_string_set(src->chrome_policy_id.str, src->chrome_policy_id.length,
                    &target->chrome_policy_id, copy);
     target->chrome_app_icon_id = src->chrome_app_icon_id;
+
+#if defined(OS_POSIX) && !defined(OS_ANDROID)
+    target->disable_signal_handlers = src->disable_signal_handlers;
+#endif
   }
 };
 

libcef/browser/main_runner.cc

@@ -101,7 +101,13 @@ bool CefMainRunner::Initialize(CefSettings* settings,
   application_ = application;
 
   exit_code_ =
-      ContentMainInitialize(args, windows_sandbox_info, &settings->no_sandbox);
+      ContentMainInitialize(args, windows_sandbox_info, &settings->no_sandbox,
+#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_ANDROID)
+                            settings->disable_signal_handlers
+#else
+                            false
+#endif
+      );
   if (exit_code_ >= 0) {
     LOG(ERROR) << "ContentMainInitialize failed with exit code " << exit_code_;
     return false;
@@ -253,7 +259,8 @@ int CefMainRunner::RunAsHelperProcess(const CefMainArgs& args,
 
 int CefMainRunner::ContentMainInitialize(const CefMainArgs& args,
                                          void* windows_sandbox_info,
-                                         int* no_sandbox) {
+                                         int* no_sandbox,
+                                         bool disable_signal_handlers) {
   BeforeMainInitialize(args);
 
   main_delegate_ =
@@ -278,6 +285,10 @@ int CefMainRunner::ContentMainInitialize(const CefMainArgs& args,
   main_params.argv = const_cast<const char**>(args.argv);
 #endif
 
+#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_ANDROID)
+  main_params.disable_signal_handlers = disable_signal_handlers;
+#endif
+
   return content::ContentMainInitialize(std::move(main_params),
                                         main_runner_.get());
 }

libcef/browser/main_runner.h

@@ -62,7 +62,9 @@ class CefMainRunner final {
   // Called from Initialize().
   int ContentMainInitialize(const CefMainArgs& args,
                             void* windows_sandbox_info,
-                            int* no_sandbox);
+                            int* no_sandbox,
+                            bool disable_signal_handlers);
+
   int ContentMainRun(bool* initialized, base::OnceClosure context_initialized);
 
   static void BeforeMainInitialize(const CefMainArgs& args);

patch/patches/content_main_654986.patch

@@ -12,7 +12,7 @@ index 79ba3ac1913f8..46bcb4366d2f8 100644
    if (main_argv)
      setproctitle_init(main_argv);
 diff --git content/app/content_main.cc content/app/content_main.cc
-index 4251459b695e6..d74286fec151b 100644
+index 96c28a7ce3183..8a396ce7adf86 100644
 --- content/app/content_main.cc
 +++ content/app/content_main.cc
 @@ -174,11 +174,8 @@ ContentMainParams::~ContentMainParams() = default;
@@ -39,7 +39,18 @@ index 4251459b695e6..d74286fec151b 100644
  
    // A flag to indicate whether Main() has been called before. On Android, we
    // may re-run Main() without restarting the browser process. This flag
-@@ -275,14 +269,6 @@ RunContentProcess(ContentMainParams params,
+@@ -266,7 +260,9 @@ RunContentProcess(ContentMainParams params,
+     // default, "C", locale.
+     setlocale(LC_NUMERIC, "C");
+ 
+-    SetupSignalHandlers();
++    if (!params.disable_signal_handlers) {
++      SetupSignalHandlers();
++    }
+ #endif
+ 
+ #if BUILDFLAG(IS_WIN)
+@@ -274,14 +270,6 @@ RunContentProcess(ContentMainParams params,
  #endif
  
  #if BUILDFLAG(IS_MAC)
@@ -54,7 +65,7 @@ index 4251459b695e6..d74286fec151b 100644
      InitializeMac();
  #endif
  
-@@ -330,12 +316,46 @@ RunContentProcess(ContentMainParams params,
+@@ -329,12 +317,46 @@ RunContentProcess(ContentMainParams params,
  
    if (IsSubprocess())
      CommonSubprocessInit();
@@ -103,7 +114,7 @@ index 4251459b695e6..d74286fec151b 100644
  }
  
 diff --git content/app/content_main_runner_impl.cc content/app/content_main_runner_impl.cc
-index eedd753c7990a..87f342581607b 100644
+index 78b9930f1ca5c..1d93552c3da25 100644
 --- content/app/content_main_runner_impl.cc
 +++ content/app/content_main_runner_impl.cc
 @@ -52,6 +52,7 @@
@@ -114,7 +125,7 @@ index eedd753c7990a..87f342581607b 100644
  #include "base/time/time.h"
  #include "base/trace_event/trace_event.h"
  #include "build/build_config.h"
-@@ -1361,6 +1362,11 @@ void ContentMainRunnerImpl::Shutdown() {
+@@ -1342,6 +1343,11 @@ void ContentMainRunnerImpl::Shutdown() {
    is_shutdown_ = true;
  }
  
@@ -149,10 +160,22 @@ index cbbc2f3ec12fa..f097b3cdded2f 100644
    int RunBrowser(MainFunctionParams main_function_params,
                   bool start_minimal_browser);
 diff --git content/public/app/content_main.h content/public/app/content_main.h
-index 7f9b515297357..89b52e34fa31a 100644
+index 7f9b515297357..5606867e43780 100644
 --- content/public/app/content_main.h
 +++ content/public/app/content_main.h
-@@ -94,6 +94,13 @@ struct CONTENT_EXPORT ContentMainParams {
+@@ -66,6 +66,11 @@ struct CONTENT_EXPORT ContentMainParams {
+   // are left uninitialized.
+   bool minimal_browser_mode = false;
+ 
++#if BUILDFLAG(IS_POSIX) && !BUILDFLAG(IS_ANDROID)
++  // Indicates whether to disable signal handlers
++  bool disable_signal_handlers = false;
++#endif
++
+ #if BUILDFLAG(IS_MAC)
+   // The outermost autorelease pool to pass to main entry points.
+   STACK_ALLOCATED_IGNORE("https://crbug.com/1424190")
+@@ -94,6 +99,13 @@ struct CONTENT_EXPORT ContentMainParams {
    }
  };