Decouple IsMetroProcess() calls, introducing IsSingleWindowMetroMode().

Many things were calling IsMetroProcess() when the intent was really to turn things ON/OFF for Metro Chrome, this does not apply to Metro Ash however.

Details of how this has been decoupled can be found at https://docs.google.com/spreadsheet/ccc?key=0AtwXJ4IPPZBAdEdaWUpLYk9IM3I1bTJleFJobXN3Z2c (more decoupling will be needed later and has been listed in separate columns on this spreadsheet; however for now this CL only applies the first column).

Also introduces win8_util where some other win8-specific things currently in base should eventually also be refactored into.

BUG=151718
TEST=This makes a bunch of things just work now in Metro Ash :).


Review URL: https://chromiumcodereview.appspot.com/11411286

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171366 0039d316-1c4b-4281-b951-d872f2087c98

2 files changed, 37 insertions, 0 deletions

diff --git a/win8/util/win8_util.cc b/win8/util/win8_util.cc
new file mode 100644
index 0000000..b630b8f
--- /dev/null
+++ b/win8/util/win8_util.cc
@@ -0,0 +1,19 @@
+// Copyright (c) 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 "win8/util/win8_util.h"
+
+#include "base/win/metro.h"
+
+namespace win8 {
+
+bool IsSingleWindowMetroMode() {
+#if defined(USE_ASH)
+  return false;
+#else
+  return base::win::IsMetroProcess();
+#endif
+}
+
+}  // namespace win8
diff --git a/win8/util/win8_util.h b/win8/util/win8_util.h
new file mode 100644
index 0000000..25d6ec0
--- /dev/null
+++ b/win8/util/win8_util.h
@@ -0,0 +1,18 @@
+// Copyright (c) 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.
+
+#ifndef WIN8_UTIL_WIN8_UTIL_H_
+#define WIN8_UTIL_WIN8_UTIL_H_
+
+namespace win8 {
+
+// Returns true if this process is running in fullscreen Metro mode on Win8+.
+// Callers should always prefer this method to base::win::IsMetroProcess() for
+// UI properties dependent on the single window mode as this method is also
+// aware of the Ash environment in which multiple Chrome windows can live.
+bool IsSingleWindowMetroMode();
+
+}  // namespace win8
+
+#endif  // WIN8_UTIL_WIN8_UTIL_H_