Convert miscellaneous RenderThreadImpl messages to mojom

mojo/public/tools/bindings/mojom.gni

Index: mojo/public/tools/bindings/mojom.gni
diff --git a/mojo/public/tools/bindings/mojom.gni b/mojo/public/tools/bindings/mojom.gni
index be36cb49d6200e1ea6742b1bceeb4a5bcbd6aba6..d8302ec6f5b914e67b0bb626f9ca882a99deb93d 100644
--- a/mojo/public/tools/bindings/mojom.gni
+++ b/mojo/public/tools/bindings/mojom.gni
@@ -39,10 +39,15 @@ foreach(config_file, _bindings_configuration_files) {
   _bindings_configurations += [ read_file(config_file, "scope") ]
 }
 foreach(configuration, _bindings_configurations) {
+  # Check that the mojom field of each typemap refers to a mojom that exists.
   foreach(typemap, configuration.typemaps) {
-    # Check that the mojom field of each typemap refers to a mojom that exists.
     read_file(typemap.mojom, "")
   }
+  if (is_mac && defined(configuration.typemaps_mac)) {
+    foreach(typemap, configuration.typemaps_mac) {
+      read_file(typemap.mojom, "")
+    }
+  }
 }
 
 # Generate C++/JavaScript/Java source files from mojom files. The output files
@@ -258,6 +263,13 @@ template("mojom") {
             active_typemaps += [ typemap ]
           }
         }
+        if (is_mac && defined(bindings_configuration.typemaps_mac)) {
+          foreach(typemap, bindings_configuration.typemaps_mac) {
+            if (get_path_info(source, "abspath") == typemap.mojom) {
+              active_typemaps += [ typemap ]
+            }
+          }
+        }
       }
 
       if (!cpp_only) {