Remove base/win/metro.{cc|h} and some associated code

chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc

Index: chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc
diff --git a/chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc b/chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc
index 571c16c2760f943cb475bb01bb6c8c265a50fa94..1c993f878d5459c7d415aef32db6cc47e95f10a3 100644
--- a/chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc
+++ b/chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc
@@ -122,11 +122,6 @@ void ChromeMetroViewerProcessHost::OnChannelConnected(int32_t /*peer_pid*/) {
   // Set environment variable to let breakpad know that metro process was
   // connected.
   ::SetEnvironmentVariableA(env_vars::kMetroConnected, "1");
-
-  if (!content::GpuDataManager::GetInstance()->GpuAccessAllowed(NULL)) {
-    DVLOG(1) << "No GPU access, attempting to restart in Desktop\n";
-    chrome::AttemptRestartToDesktopMode();
-  }
 }
 
 void ChromeMetroViewerProcessHost::OnSetTargetSurface(