Clang plugin to check that unstable types are not used in IPC.

build/config/clang/BUILD.gn

Index: build/config/clang/BUILD.gn
diff --git a/build/config/clang/BUILD.gn b/build/config/clang/BUILD.gn
index d9a4db4ce14e6b1b91ad45910e8032e8442c004d..eec249a247a2b92a355e8e8cd52d7b2ab7cb4917 100644
--- a/build/config/clang/BUILD.gn
+++ b/build/config/clang/BUILD.gn
@@ -45,6 +45,15 @@ config("find_bad_constructs") {
       "-Xclang",
       "follow-macro-expansion",
     ]
+
+    if (is_android) {
+      cflags += [
+        "-Xclang",
+        "-plugin-arg-find-bad-constructs",
+        "-Xclang",
+        "check-ipc",
+      ]
+    }
   }
 }