Remove dependency from NaCl code on chrome_constants.

chrome/browser/nacl_host/nacl_browser.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 "chrome/browser/nacl_host/nacl_browser.h"
 
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 179 matching lines @@
     base::FilePath plugin_dir;
     if (!PathService::Get(chrome::DIR_INTERNAL_PLUGINS, &plugin_dir)) {
       DLOG(ERROR) << "Failed to locate the plugins directory, NaCl disabled.";
       MarkAsFailed();
       return;
     }
     irt_filepath_ = plugin_dir.Append(NaClIrtName());
   }
 }
 
+#if defined(OS_WIN)
+bool NaClBrowser::GetNaCl64ExePath(base::FilePath* exe_path) {
+  base::FilePath module_path;
+  if (!PathService::Get(base::FILE_MODULE, &module_path)) {
+    LOG(ERROR) << "NaCl process launch failed: could not resolve module";
+    return false;
+  }
+  *exe_path = module_path.DirName().Append(L"nacl64");
+  return true;
+}
+#endif
+
 NaClBrowser* NaClBrowser::GetInstance() {
   return Singleton<NaClBrowser>::get();
 }
 
 bool NaClBrowser::IsReady() const {
   return (IsOk() &&
           irt_state_ == NaClResourceReady &&
           validation_cache_state_ == NaClResourceReady);
 }
 
@@ skipping 337 matching lines @@
     // because it can degrade the responsiveness of the browser.
     // The task is sequenced so that multiple writes happen in order.
     content::BrowserThread::PostBlockingPoolSequencedTask(
         kValidationCacheSequenceName,
         FROM_HERE,
         base::Bind(WriteCache, validation_cache_file_path_,
                    base::Owned(pickle)));
   }
   validation_cache_is_modified_ = false;
 }