clang plugin: Remove enforce-in-pdf toggle.

tools/clang/plugins/FindBadConstructsAction.cpp

Index: tools/clang/plugins/FindBadConstructsAction.cpp
diff --git a/tools/clang/plugins/FindBadConstructsAction.cpp b/tools/clang/plugins/FindBadConstructsAction.cpp
index 7458c543c7dccfee867a87d6bbb28337cd6f7e5e..3fedd8feb088df2a5eb4f972c175e36e7c37a384 100644
--- a/tools/clang/plugins/FindBadConstructsAction.cpp
+++ b/tools/clang/plugins/FindBadConstructsAction.cpp
@@ -48,7 +48,8 @@ bool FindBadConstructsAction::ParseArgs(const CompilerInstance& instance,
       // TODO(rsleevi): Remove this once http://crbug.com/123295 is fixed.
       options_.check_base_classes = true;
     } else if (args[i] == "enforce-in-pdf") {
-      options_.enforce_in_pdf = true;
+      // TODO(thestig): This is now always on. Remove support for this flag once
+      // the build no longer passes it in.
     } else if (args[i] == "enforce-in-thirdparty-webkit") {
       options_.enforce_in_thirdparty_webkit = true;
     } else if (args[i] == "check-enum-last-value") {