chromeos: Add SurfaceServiceProvider.

ash/accelerators/accelerator_controller.cc

Index: ash/accelerators/accelerator_controller.cc
diff --git a/ash/accelerators/accelerator_controller.cc b/ash/accelerators/accelerator_controller.cc
index 77c3ed2a560cf0d7f53f13162c93b1a60ab9e857..b4c905ca5ad0b8ef88397ff5ddd84da006ffa6bf 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -10,6 +10,7 @@
 
 #include "ash/accelerators/accelerator_commands.h"
 #include "ash/accelerators/debug_commands.h"
+#include "ash/surfaces/test_surface_overlay_view.h"
 #include "ash/ash_switches.h"
 #include "ash/debug.h"
 #include "ash/display/window_tree_host_manager.h"
@@ -349,6 +350,11 @@ void HandleRotateActiveWindow() {
   }
 }
 
+void HandleShowTestSurfaceOverlay() {
+  base::RecordAction(UserMetricsAction("Accel_Show_Test_Surface_Overlay"));
+  TestSurfaceOverlayView::Show();
+}
+
 void HandleShowKeyboardOverlay() {
   base::RecordAction(UserMetricsAction("Accel_Show_Keyboard_Overlay"));
   ash::Shell::GetInstance()->new_window_delegate()->ShowKeyboardOverlay();
@@ -1024,6 +1030,7 @@ bool AcceleratorController::CanPerformAction(
     case RESTORE_TAB:
     case ROTATE_SCREEN:
     case ROTATE_WINDOW:
+    case SHOW_TEST_SURFACE_OVERLAY:
     case SHOW_KEYBOARD_OVERLAY:
     case SHOW_SYSTEM_TRAY_BUBBLE:
     case SHOW_TASK_MANAGER:
@@ -1184,6 +1191,9 @@ void AcceleratorController::PerformAction(AcceleratorAction action,
     case SCALE_UI_UP:
       accelerators::ZoomInternalDisplay(true /* up */);
       break;
+    case SHOW_TEST_SURFACE_OVERLAY:
+      HandleShowTestSurfaceOverlay();
+      break;
     case SHOW_KEYBOARD_OVERLAY:
       HandleShowKeyboardOverlay();
       break;