Work in progress: Adds MessagePumpDispatcher::ShouldExit(). This is used to handle the

base/message_pump_glib.cc

Index: base/message_pump_glib.cc
diff --git a/base/message_pump_glib.cc b/base/message_pump_glib.cc
index 07db124b5dad6df553766978bc0020d9f39e768f..2bb67b88b1dd14ecd45c1e5cc27b29309039df1d 100644
--- a/base/message_pump_glib.cc
+++ b/base/message_pump_glib.cc
@@ -11,6 +11,7 @@
 
 #include "base/eintr_wrapper.h"
 #include "base/logging.h"
+#include "base/message_pump_dispatcher.h"
 #include "base/threading/platform_thread.h"
 
 namespace {
@@ -271,6 +272,12 @@ bool MessagePumpGlib::HandleCheck() {
 }
 
 void MessagePumpGlib::HandleDispatch() {
+  MessagePumpDispatcher* dispatcher = GetDispatcher();
+  if (dispatcher && dispatcher->ShouldExit()) {
+    state_->should_quit = true;
+    return;
+  }
+
   state_->has_work = false;
   if (state_->delegate->DoWork()) {
     // NOTE: on Windows at this point we would call ScheduleWork (see