Reland r50057. This is exactly the same except with two lines cherrypicked from

chrome/common/chrome_paths.cc

 // Copyright (c) 2006-2010 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 "chrome/common/chrome_paths.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ skipping 150 matching lines @@
     case chrome::DIR_BOOKMARK_MANAGER:
       if (!PathService::Get(chrome::DIR_RESOURCES, &cur))
         return false;
       cur = cur.Append(FILE_PATH_LITERAL("bookmark_manager"));
       break;
     case chrome::DIR_INSPECTOR:
       if (!PathService::Get(chrome::DIR_RESOURCES, &cur))
         return false;
       cur = cur.Append(FILE_PATH_LITERAL("inspector"));
       break;
-    case chrome::DIR_NET_INTERNALS:
-      if (!PathService::Get(chrome::DIR_RESOURCES, &cur))
-        return false;
-      cur = cur.Append(FILE_PATH_LITERAL("net_internals"));
-      break;
     case chrome::DIR_APP_DICTIONARIES:
 #if defined(OS_LINUX) || defined(OS_MACOSX)
       // We can't write into the EXE dir on Linux, so keep dictionaries
       // alongside the safe browsing database in the user data dir.
       // And we don't want to write into the bundle on the Mac, so push
       // it to the user data dir there also.
       if (!PathService::Get(chrome::DIR_USER_DATA, &cur))
         return false;
 #else
       if (!PathService::Get(base::DIR_EXE, &cur))
@@ skipping 109 matching lines @@
   return true;
 }
 
 // This cannot be done as a static initializer sadly since Visual Studio will
 // eliminate this object file if there is no direct entry point into it.
 void RegisterPathProvider() {
   PathService::RegisterProvider(PathProvider, PATH_START, PATH_END);
 }
 
 }  // namespace chrome