Chromecast: adds CastNetworkDelegate.

chromecast/service/cast_network_delegate.cc

+// Copyright 2014 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 "chromecast/service/cast_network_delegate.h"
+
+#include "base/command_line.h"
+#include "base/files/file_path.h"
+#include "chromecast/common/chromecast_switches.h"
+
+namespace chromecast {
+
+CastNetworkDelegate::CastNetworkDelegate() {
+  DetachFromThread();
+}
+
+CastNetworkDelegate::~CastNetworkDelegate() {
+}
+
+bool CastNetworkDelegate::OnCanAccessFile(const net::URLRequest& request,
+                                          const base::FilePath& path) const {
+#if defined(OS_ANDROID)
+  // On Chromecast, there's no reason to allow local file access.
+  if (base::CommandLine::ForCurrentProcess()->
+      HasSwitch(switches::kEnableLocalFileAccesses)) {
+    return true;
+  }
+#endif  // defined(OS_ANDROID)
+
+  LOG(WARNING) << "Could not access file " << path.value()
+               << ". All file accesses are forbidden.";
+  return false;
+}
+
+}  // namespace chromecast