Revert 262747 "Improve GN public header file checking"

trunk/src/tools/gn/input_file_manager.cc

Index: trunk/src/tools/gn/input_file_manager.cc
===================================================================
--- trunk/src/tools/gn/input_file_manager.cc	(revision 262754)
+++ trunk/src/tools/gn/input_file_manager.cc	(working copy)
@@ -167,11 +167,10 @@
   return data->parsed_root.get();
 }
 
-void InputFileManager::AddDynamicInput(const SourceFile& name,
-                                       InputFile** file,
+void InputFileManager::AddDynamicInput(InputFile** file,
                                        std::vector<Token>** tokens,
                                        scoped_ptr<ParseNode>** parse_root) {
-  InputFileData* data = new InputFileData(name);
+  InputFileData* data = new InputFileData(SourceFile());
   {
     base::AutoLock lock(lock_);
     dynamic_inputs_.push_back(data);