UMA stats for stylus usage

chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc

Index: chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc
diff --git a/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc b/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc
index 93db269b11b349bc29870b5db03c8c7b0be504aa..85a70ace8056433f6894f6b12866bdc8b1fa0561 100644
--- a/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc
+++ b/chrome/browser/ui/views/frame/browser_non_client_frame_view_ash.cc
@@ -56,6 +56,10 @@
 #include "ui/views/widget/widget.h"
 #include "ui/views/widget/widget_delegate.h"
 
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/ui/ash/metrics/stylus_metrics_recorder_chromeos.h"
+#endif
+
 namespace {
 
 // Space between right edge of tabstrip and maximize button.
@@ -137,6 +141,12 @@ void BrowserNonClientFrameViewAsh::Init() {
     header_painter->Init(frame(), browser_view(), this, window_icon_,
                          caption_button_container_);
   }
+
+#if defined(OS_CHROMEOS)
+  frame()->GetNativeWindow()->SetProperty(
+      chromeos::kStylusWindowTypeBucket,
+      chromeos::StylusWindowType::BROWSER_WINDOW);
+#endif
 }
 
 ///////////////////////////////////////////////////////////////////////////////