Add cc/ to banned_directories in chromium clang style checker

tools/clang/plugins/FindBadConstructs.cpp

Index: tools/clang/plugins/FindBadConstructs.cpp
diff --git a/tools/clang/plugins/FindBadConstructs.cpp b/tools/clang/plugins/FindBadConstructs.cpp
index b9e1f5b1755c8649c607d9604b91a45de414e43e..0c41d7c54af2f955017075be4fde97251ae5cdc1 100644
--- a/tools/clang/plugins/FindBadConstructs.cpp
+++ b/tools/clang/plugins/FindBadConstructs.cpp
@@ -51,8 +51,9 @@ class FindBadConstructsConsumer : public ChromeClassTester {
   FindBadConstructsConsumer(CompilerInstance& instance,
                             bool check_refcounted_dtors,
                             bool check_virtuals_in_implementations,
-                            bool check_inner_classes)
-      : ChromeClassTester(instance, check_inner_classes),
+                            bool check_inner_classes,
+                            bool check_cc_directory)
+      : ChromeClassTester(instance, check_inner_classes, check_cc_directory),
         check_refcounted_dtors_(check_refcounted_dtors),
         check_virtuals_in_implementations_(check_virtuals_in_implementations) {
   }
@@ -397,7 +398,8 @@ class FindBadConstructsAction : public PluginASTAction {
   FindBadConstructsAction()
       : check_refcounted_dtors_(true),
         check_virtuals_in_implementations_(true),
-        check_inner_classes_(false) {
+        check_inner_classes_(false),
+        check_cc_directory_(false) {
   }
 
  protected:
@@ -406,7 +408,7 @@ class FindBadConstructsAction : public PluginASTAction {
                                          llvm::StringRef ref) {
     return new FindBadConstructsConsumer(
         instance, check_refcounted_dtors_, check_virtuals_in_implementations_,
-        check_inner_classes_);
+        check_inner_classes_, check_cc_directory_);
   }
 
   virtual bool ParseArgs(const CompilerInstance& instance,
@@ -420,6 +422,8 @@ class FindBadConstructsAction : public PluginASTAction {
         check_virtuals_in_implementations_ = false;
       } else if (args[i] == "check-inner-classes") {
         check_inner_classes_ = true;
+      } else if (args[i] == "check-cc-directory") {
+        check_cc_directory_ = true;
       } else {
         parsed = false;
         llvm::errs() << "Unknown argument: " << args[i] << "\n";
@@ -433,6 +437,7 @@ class FindBadConstructsAction : public PluginASTAction {
   bool check_refcounted_dtors_;
   bool check_virtuals_in_implementations_;
   bool check_inner_classes_;
+  bool check_cc_directory_;
 };
 
 }  // namespace