Include the display description in the picker on ChromeOS

ash/display/display_controller.cc

Index: ash/display/display_controller.cc
diff --git a/ash/display/display_controller.cc b/ash/display/display_controller.cc
index aebe47c29b974cb45d983d4f98cdacea6d312bc3..79a5f2961deebc493b12cbc9b5edb48777e981f4 100644
--- a/ash/display/display_controller.cc
+++ b/ash/display/display_controller.cc
@@ -26,6 +26,7 @@
 #include "ash/wm/coordinate_conversion.h"
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
+#include "base/strings/utf_string_conversions.h"
 #include "ui/aura/client/capture_client.h"
 #include "ui/aura/client/focus_client.h"
 #include "ui/aura/client/screen_position_client.h"
@@ -724,6 +725,7 @@ AshWindowTreeHost* DisplayController::AddWindowTreeHostForDisplay(
   aura::WindowTreeHost* host = ash_host->AsWindowTreeHost();
 
   host->window()->SetName(base::StringPrintf("RootWindow-%d", host_count++));
+  host->window()->set_title(base::UTF8ToUTF16(display_info.name()));
   host->compositor()->SetBackgroundColor(SK_ColorBLACK);
   // No need to remove our observer observer because the DisplayController
   // outlives the host.