Linux: Detect Unity as a desktop environment.

chrome/browser/printing/printer_manager_dialog_linux.cc

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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 "chrome/browser/printing/printer_manager_dialog.h"
 
 #include "base/bind.h"
 #include "base/environment.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/nix/xdg_util.h"
@@ skipping 14 matching lines @@
 // manager dialog.
 void DetectAndOpenPrinterConfigDialog() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   scoped_ptr<Environment> env(Environment::Create());
 
   const char* command = NULL;
   switch (base::nix::GetDesktopEnvironment(env.get())) {
     case base::nix::DESKTOP_ENVIRONMENT_GNOME:
     case base::nix::DESKTOP_ENVIRONMENT_KDE3:
     case base::nix::DESKTOP_ENVIRONMENT_KDE4:
+    case base::nix::DESKTOP_ENVIRONMENT_UNITY:
       command = kGNOMEPrinterConfigCommand;
       break;
     case base::nix::DESKTOP_ENVIRONMENT_XFCE:
     case base::nix::DESKTOP_ENVIRONMENT_OTHER:
       break;
-    default:
-      NOTREACHED();
-      break;
   }
 
   if (!command) {
     LOG(ERROR) << "Failed to detect the command to open printer config dialog";
     return;
   }
 
   std::vector<std::string> argv;
   argv.push_back(command);
   base::ProcessHandle handle;
   if (!base::LaunchProcess(argv, base::LaunchOptions(), &handle)) {
     LOG(ERROR) << "Failed to open printer manager dialog ";
     return;
   }
   base::EnsureProcessGetsReaped(handle);
 }
 
 }  // anonymous namespace
 
 namespace printing {
 
 void PrinterManagerDialog::ShowPrinterManagerDialog() {
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&DetectAndOpenPrinterConfigDialog));
 }
 
 }  // namespace printing