linux: don't always print dlopen errors from LoadNativeLibrary

base/native_library_win.cc

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// Copyright (c) 2011 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 "base/native_library.h"
 
 #include <windows.h>
 
 #include "base/file_util.h"
 #include "base/threading/thread_restrictions.h"
 #include "base/utf_string_conversions.h"
@@ skipping 20 matching lines @@
   }
 
   HMODULE module = (*load_library_api)(library_path.value().c_str());
   if (restore_directory)
     file_util::SetCurrentDirectory(current_directory);
 
   return module;
 }
 
 // static
-NativeLibrary LoadNativeLibrary(const FilePath& library_path) {
+NativeLibrary LoadNativeLibrary(const FilePath& library_path,
+                                std::string* error) {
   return LoadNativeLibraryHelper(library_path, LoadLibraryW);
 }
 
 NativeLibrary LoadNativeLibraryDynamically(const FilePath& library_path) {
   typedef HMODULE (WINAPI* LoadLibraryFunction)(const wchar_t* file_name);
 
   LoadLibraryFunction load_library;
   load_library = reinterpret_cast<LoadLibraryFunction>(
       GetProcAddress(GetModuleHandle(L"kernel32.dll"), "LoadLibraryW"));
 
@@ skipping 10 matching lines @@
                                           const char* name) {
   return GetProcAddress(library, name);
 }
 
 // static
 string16 GetNativeLibraryName(const string16& name) {
   return name + ASCIIToUTF16(".dll");
 }
 
 }  // namespace base