Decouple IsMetroProcess() calls, introducing IsSingleWindowMetroMode().

chrome/browser/ui/views/task_manager_view.cc

Index: chrome/browser/ui/views/task_manager_view.cc
diff --git a/chrome/browser/ui/views/task_manager_view.cc b/chrome/browser/ui/views/task_manager_view.cc
index 5a22107953ec2b5df2c1aec8e8a44102dbd9c9b6..c309c6d02d4323d9f08c59fa178e81149392ff20 100644
--- a/chrome/browser/ui/views/task_manager_view.cc
+++ b/chrome/browser/ui/views/task_manager_view.cc
@@ -38,7 +38,7 @@
 #include "ui/views/window/dialog_delegate.h"
 
 #if defined(OS_WIN)
-#include "base/win/metro.h"
+#include "win8/util/win8_util.h"
 #endif
 
 // The task manager window default size.
@@ -586,7 +586,7 @@ gfx::Size TaskManagerView::GetPreferredSize() {
 // static
 void TaskManagerView::Show(bool highlight_background_resources) {
   // In Windows Metro it's not good to open this native window.
-  DCHECK(!base::win::IsMetroProcess());
+  DCHECK(!win8::IsSingleWindowMetroMode());
 

[cpu_(ooo_6.6-7.5), 2012/12/03 20:56:26]

FYI, There is a discussion about what task manager to show; the native one
cannot be shown and the webview based should not be shown.

[gab, 2012/12/04 00:19:06]

So making this change only enables (and some other related to task manager in
this CL) showing the Task Manager -- this fails for now as it tries to create a
native window, but in the end we do want a task manager in Ash right?

In fact this change doesn't do much as is anyways since this will run in the
browser process which was already not an immersive process by Robert's recent
redesign.

The purpose of this change is more to highlight which things are meant to be
turned ON/OFF specifically for non-ash Metro mode.

[gab, 2012/12/04 18:47:42]

Looks like task_manager_view.cc is already compiled out on AURA builds:
https://code.google.com/searchframe#OAMlx_jo-ck/src/chrome/chrome_browser_ui....

So this is definitely a case of win8::IsSingleWindowMetroMode().

   if (instance_) {
     if (instance_->highlight_background_resources_ !=