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

chrome/browser/metro_viewer/chrome_metro_viewer_process_host_aurawin.cc

 // Copyright 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/metro_viewer/chrome_metro_viewer_process_host_aurawin.h"
 
 #include "ash/display/display_info.h"
 #include "ash/display/display_manager.h"
 #include "ash/host/ash_remote_window_tree_host_win.h"
 #include "ash/shell.h"
@@ skipping 104 matching lines @@
   // This will delete the MetroViewerProcessHost object. Don't access member
   // variables/functions after this call.
   g_browser_process->platform_part()->OnMetroViewerProcessTerminated();
 }
 
 void ChromeMetroViewerProcessHost::OnChannelConnected(int32_t /*peer_pid*/) {
   DVLOG(1) << "ChromeMetroViewerProcessHost::OnChannelConnected: ";
   // 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(
     gfx::NativeViewId target_surface,
     float device_scale) {
   HWND hwnd = reinterpret_cast<HWND>(target_surface);
 
   gfx::SetDefaultDeviceScaleFactor(device_scale);
   chrome::OpenAsh(hwnd);
   DCHECK(aura::RemoteWindowTreeHostWin::Instance());
@@ skipping 30 matching lines @@
 void ChromeMetroViewerProcessHost::OnWindowSizeChanged(uint32_t width,
                                                        uint32_t height) {
   std::vector<ash::DisplayInfo> info_list;
   info_list.push_back(ash::DisplayInfo::CreateFromSpec(
       base::StringPrintf("%dx%d*%f", width, height, gfx::GetDPIScale())));
   ash::Shell::GetInstance()->display_manager()->OnNativeDisplaysChanged(
       info_list);
   aura::RemoteWindowTreeHostWin::Instance()->HandleWindowSizeChanged(width,
                                                                      height);
 }