Update Android to use scoped_refptr<T>::get() rather than implicit "operator T*"

webkit/browser/fileapi/sandbox_file_stream_writer.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 "webkit/browser/fileapi/sandbox_file_stream_writer.h"
 
 #include "base/files/file_util_proxy.h"
 #include "base/platform_file.h"
 #include "base/sequenced_task_runner.h"
 #include "net/base/io_buffer.h"
@@ skipping 98 matching lines @@
     has_pending_operation_ = false;
   return result;
 }
 
 void SandboxFileStreamWriter::DidCreateSnapshotFile(
     const net::CompletionCallback& callback,
     base::PlatformFileError file_error,
     const base::PlatformFileInfo& file_info,
     const base::FilePath& platform_path,
     const scoped_refptr<webkit_blob::ShareableFileReference>& file_ref) {
-  DCHECK(!file_ref);
+  DCHECK(!file_ref.get());
 
   if (CancelIfRequested())
     return;
   if (file_error != base::PLATFORM_FILE_OK) {
     callback.Run(net::PlatformFileErrorToNetError(file_error));
     return;
   }
   if (file_info.is_directory) {
     // We should not be writing to a directory.
     callback.Run(net::ERR_ACCESS_DENIED);
@@ skipping 105 matching lines @@
   DCHECK(cancel_callback_.is_null());
 
   // Write() is not called yet, so there's nothing to flush.
   if (!local_file_writer_)
     return net::OK;
 
   return local_file_writer_->Flush(callback);
 }
 
 }  // namespace fileapi