Move WriteFile and WriteFileDescriptor from file_util to base namespace.

content/common/gpu/media/video_decode_accelerator_unittest.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.
 //
 // The bulk of this file is support code; sorry about that.  Here's an overview
 // to hopefully help readers of this code:
 // - RenderingHelper is charged with interacting with X11/{EGL/GLES2,GLX/GL} or
 //   Win/EGL.
 // - ClientState is an enum for the state of the decode client used by the test.
 // - ClientStateNotification is a barrier abstraction that allows the test code
@@ skipping 1356 matching lines @@
                             kThumbnailsPageSize.width() * 3,
                             true,
                             std::vector<gfx::PNGCodec::Comment>(),
                             &png);
 
       LOG(ERROR) << "Unknown thumbnails MD5: " << md5_string;
 
       base::FilePath filepath(test_video_files_[0]->file_name);
       filepath = filepath.AddExtension(FILE_PATH_LITERAL(".bad_thumbnails"));
       filepath = filepath.AddExtension(FILE_PATH_LITERAL(".png"));
-      int num_bytes = file_util::WriteFile(filepath,
+      int num_bytes = base::WriteFile(filepath,
                                            reinterpret_cast<char*>(&png[0]),
                                            png.size());
       ASSERT_EQ(num_bytes, static_cast<int>(png.size()));
     }
     ASSERT_NE(match, golden_md5s.end());
     EXPECT_EQ(alpha_solid, true) << "RGBA frame had incorrect alpha";
   }
 
   // Output the frame delivery time to file
   // We can only make performance/correctness assertions if the decoder was
@@ skipping 193 matching lines @@
     }
     if (it->first == "v" || it->first == "vmodule")
       continue;
     LOG(FATAL) << "Unexpected switch: " << it->first << ":" << it->second;
   }
 
   base::ShadowingAtExitManager at_exit_manager;
 
   return RUN_ALL_TESTS();
 }