Add a new GetInstance() method for singleton classes, take 2.

chrome/browser/gpu_process_host.cc

 // Copyright (c) 2010 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/gpu_process_host.h"
 
 #include "app/app_switches.h"
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "base/thread.h"
@@ skipping 204 matching lines @@
 
 namespace {
 
 void SendDelayedReply(IPC::Message* reply_msg) {
   GpuProcessHost::Get()->Send(reply_msg);
 }
 
 void GetViewXIDDispatcher(gfx::NativeViewId id, IPC::Message* reply_msg) {
   XID xid;
 
-  GtkNativeViewManager* manager = Singleton<GtkNativeViewManager>::get();
+  GtkNativeViewManager* manager = GtkNativeViewManager::GetInstance();
   if (!manager->GetPermanentXIDForId(&xid, id)) {
     DLOG(ERROR) << "Can't find XID for view id " << id;
     xid = 0;
   }
 
   GpuHostMsg_GetViewXID::WriteReplyParams(reply_msg, xid);
 
   // Have to reply from IO thread.
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
@@ skipping 293 matching lines @@
 #elif defined(OS_POSIX)
       false,  // Never use the zygote (GPU plugin can't be sandboxed).
       base::environment_vector(),
 #endif
       cmd_line);
 
   UMA_HISTOGRAM_ENUMERATION("GPU.GPUProcessLifetimeEvents",
                             kLaunched, kGPUProcessLifetimeEvent_Max);
   return true;
 }