Touch Events capability negotiation

remoting/host/multi_touch_capability.cc

Index: remoting/host/multi_touch_capability.cc
diff --git a/remoting/host/multi_touch_capability.cc b/remoting/host/multi_touch_capability.cc
new file mode 100644
index 0000000000000000000000000000000000000000..389a02a400408013d49f0a2f210d0c52ecd55d2f
--- /dev/null
+++ b/remoting/host/multi_touch_capability.cc
@@ -0,0 +1,23 @@
+// Copyright 2015 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 "remoting/host/multi_touch_capability.h"
+
+#include "base/logging.h"
+
+#if defined(OS_WIN)
+#include "remoting/host/touch_injector_win.h"
+#endif  // defined(OS_WIN)
+
+namespace remoting {
+
+bool MultiTouchCapable() {
+#if defined(OS_WIN)
+  return TouchInjectorWinDelegate::Create().get() != nullptr;

[Wez, 2015/03/30 17:10:07]

nit: You can test a scoped_ptr<> directly as a bool, so it'd be clearer to
assign this to a local scoped_ptr<> |foo| and then return |foo|, I think.

[Rintaro Kuroiwa, 2015/04/08 03:27:43]

Done. Also moved this to InputInjector<platform>::CanInjectTouch().

+#else  // !defined(OS_WIN)
+  return false;
+#endif  // defined(OS_WIN)
+}
+
+}  // namespace remoting