Rename pnacl_file_host to nacl_file_host.

ppapi/native_client/src/trusted/plugin/pnacl_resources.cc

 // 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.
 
 #include "native_client/src/trusted/plugin/pnacl_resources.h"
 
 #include "native_client/src/include/portability_io.h"
 #include "native_client/src/shared/platform/nacl_check.h"
 #include "native_client/src/trusted/desc/nacl_desc_wrapper.h"
 #include "native_client/src/trusted/plugin/manifest.h"
@@ skipping 23 matching lines @@
   } else {
     return nacl::string(kPnaclComponentID) + GetSandboxISA() + "/";
   }
 }
 
 bool PnaclUrls::IsPnaclComponent(const nacl::string& full_url) {
   return full_url.find(kPnaclComponentID, 0) == 0;
 }
 
 // Convert a URL to a filename accepted by GetReadonlyPnaclFd.
-// Must be kept in sync with pnacl_file_host.cc.
+// Must be kept in sync with chrome/browser/nacl_host/nacl_file_host.
 nacl::string PnaclUrls::PnaclComponentURLToFilename(
     const nacl::string& full_url) {
   // strip componentID.
   nacl::string r = full_url.substr(nacl::string(kPnaclComponentID).length());
 
   // Use white-listed-chars.
   size_t replace_pos;
   static const char* white_list = "abcdefghijklmnopqrstuvwxyz0123456789_";
   replace_pos = r.find_first_not_of(white_list);
   while(replace_pos != nacl::string::npos) {
@@ skipping 133 matching lines @@
                                    pp_error,
                                    "PnaclResources::ResourceReady failed.");
   } else {
     resource_wrappers_[url] =
         plugin_->wrapper_factory()->MakeFileDesc(fd, O_RDONLY);
     delayed_callback_->RunIfTime();
   }
 }
 
 }  // namespace plugin