Add url/ to banned_directories in clang style checker.

tools/clang/plugins/ChromeClassTester.cpp

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // A general interface for filtering and only acting on classes in Chromium C++
 // code.
 
 #include "ChromeClassTester.h"
 
 #include <sys/param.h>
@@ skipping 18 matching lines @@
 
 bool ends_with(const std::string& one, const std::string& two) {
   if (two.size() > one.size())
     return false;
 
   return one.compare(one.size() - two.size(), two.size(), two) == 0;
 }
 
 }  // namespace
 
-ChromeClassTester::ChromeClassTester(CompilerInstance& instance)
+ChromeClassTester::ChromeClassTester(CompilerInstance& instance,
+                                     bool check_url_directory)
     : instance_(instance),
-      diagnostic_(instance.getDiagnostics()) {
+      diagnostic_(instance.getDiagnostics()),
+      check_url_directory_(check_url_directory) {
   BuildBannedLists();
 }
 
 ChromeClassTester::~ChromeClassTester() {}
 
 void ChromeClassTester::HandleTagDeclDefinition(TagDecl* tag) {
   pending_class_decls_.push_back(tag);
 }
 
 bool ChromeClassTester::HandleTopLevelDecl(DeclGroupRef group_ref) {
@@ skipping 97 matching lines @@
   banned_directories_.push_back("ppapi/");
   banned_directories_.push_back("usr/");
   banned_directories_.push_back("testing/");
   banned_directories_.push_back("googleurl/");
   banned_directories_.push_back("v8/");
   banned_directories_.push_back("dart/");
   banned_directories_.push_back("sdch/");
   banned_directories_.push_back("icu4c/");
   banned_directories_.push_back("frameworks/");
 
+  if (!check_url_directory_)
+    banned_directories_.push_back("url/");
+
   // Don't check autogenerated headers.
   // Make puts them below $(builddir_name)/.../gen and geni.
   // Ninja puts them below OUTPUT_DIR/.../gen
   // Xcode has a fixed output directory for everything.
   banned_directories_.push_back("gen/");
   banned_directories_.push_back("geni/");
   banned_directories_.push_back("xcodebuild/");
 
   // You are standing in a mazy of twisty dependencies, all resolved by
   // putting everything in the header.
@@ skipping 121 matching lines @@
   PresumedLoc ploc = source_manager.getPresumedLoc(spelling_location);
   if (ploc.isInvalid()) {
     // If we're in an invalid location, we're looking at things that aren't
     // actually stated in the source.
     return false;
   }
 
   *filename = ploc.getFilename();
   return true;
 }