mustash: Connect ash system tray "show settings" items to chrome over mojo

chrome/browser/ui/ash/system_tray_client.h

Index: chrome/browser/ui/ash/system_tray_client.h
diff --git a/chrome/browser/ui/ash/system_tray_client.h b/chrome/browser/ui/ash/system_tray_client.h
index 1952c2adb363847954182be02f7412217baa128a..e3b27f154423b2b1087f90a099f6035856eb868f 100644
--- a/chrome/browser/ui/ash/system_tray_client.h
+++ b/chrome/browser/ui/ash/system_tray_client.h
@@ -28,7 +28,18 @@ class SystemTrayClient : public ash::mojom::SystemTrayClient,
   void OnClientConnectionError();
 
   // ash::mojom::SystemTrayClient:
+  void ShowSettings() override;
   void ShowDateSettings() override;
+  void ShowDisplaySettings() override;
+  void ShowChromeSlow() override;
+  void ShowIMESettings() override;
+  void ShowHelp() override;
+  void ShowAccessibilityHelp() override;
+  void ShowAccessibilitySettings() override;
+  void ShowPaletteHelp() override;
+  void ShowPaletteSettings() override;
+  void ShowPublicAccountInfo() override;
+  void ShowProxySettings() override;
 
   // chromeos::system::SystemClockObserver:
   void OnSystemClockChanged(chromeos::system::SystemClock* clock) override;