Video Player: Disables cast feature by default

chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc

Index: chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc
diff --git a/chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc b/chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc
index bd8d719d580bfa0678d5fb5d8be36fb8a2d4a8b5..0cdce519f750e5e7e381bba1e9b79a836b893c50 100644
--- a/chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc
+++ b/chrome/browser/chromeos/extensions/file_manager/private_api_drive.cc
@@ -902,6 +902,15 @@ FileBrowserPrivateGetDownloadUrlFunction::
 }
 
 bool FileBrowserPrivateGetDownloadUrlFunction::RunAsync() {
+  const base::CommandLine* command_line =
+      base::CommandLine::ForCurrentProcess();
+  if (!command_line->HasSwitch(
+          chromeos::switches::kEnableVideoPlayerChromecastSupport)) {
+    SetError("Cast support is disabled.");
+    SetResult(new base::StringValue(""));  // Intentionally returns a blank.
+    return false;
+  }
+
   using extensions::api::file_browser_private::GetShareUrl::Params;
   const scoped_ptr<Params> params(Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);