Ensure that Metro chrome in ASH is able to connect to an existing desktop chrome AURA process.

chrome/browser/metro_viewer/metro_viewer_process_host_win.cc

Index: chrome/browser/metro_viewer/metro_viewer_process_host_win.cc
===================================================================
--- chrome/browser/metro_viewer/metro_viewer_process_host_win.cc	(revision 169477)
+++ chrome/browser/metro_viewer/metro_viewer_process_host_win.cc	(working copy)
@@ -5,6 +5,7 @@
 #include "chrome/browser/metro_viewer/metro_viewer_process_host_win.h"
 
 #include "base/logging.h"
+#include "chrome/browser/browser_process.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
 #include "chrome/browser/ui/ash/ash_init.h"
 #include "content/public/browser/browser_thread.h"
@@ -15,6 +16,7 @@
 
 MetroViewerProcessHost::MetroViewerProcessHost(
     const std::string& ipc_channel_name) {
+  g_browser_process->AddRefModule();
   channel_.reset(new IPC::ChannelProxy(
       ipc_channel_name.c_str(),
       IPC::Channel::MODE_NAMED_SERVER,
@@ -51,7 +53,8 @@
   // TODO(cpu): At some point we only close the browser. Right now this
   // is very convenient for developing.
   DLOG(INFO) << "viewer channel error : Quitting browser";
-  browser::CloseAllBrowsers();

[ananta, 2012/11/27 19:17:25]

Removed the call to CloseAllBrowsers as it closes desktop browsers as well. The
CloseAsh function which we now call does the required cleanup.

+  g_browser_process->ReleaseModule();
+  chrome::CloseAsh();
 }
 
 void MetroViewerProcessHost::OnSetTargetSurface(