Make mash register initial batch of accelerators in single shot.

ui/base/accelerators/accelerator_manager_unittest.cc

Index: ui/base/accelerators/accelerator_manager_unittest.cc
diff --git a/ui/base/accelerators/accelerator_manager_unittest.cc b/ui/base/accelerators/accelerator_manager_unittest.cc
index 5383403be6799c3ebcd0900b668ef3a47f622eea..dfdfa8d0fbe4601b4836aa59326aa1a3f4705a87 100644
--- a/ui/base/accelerators/accelerator_manager_unittest.cc
+++ b/ui/base/accelerators/accelerator_manager_unittest.cc
@@ -90,6 +90,15 @@ class TestAcceleratorManagerDelegate : public AcceleratorManagerDelegate {
     return commands;
   }
 
+  void OnAcceleratorsRegistered(
+    std::vector<ui::Accelerator>& accelerators) {
+    NOT_IMPLEMENTED();
+  }
+
+  void OnAcceleratorsUnregistered(
+    std::vector<ui::Accelerator>& accelerators) {
+    NOT_IMPLEMENTED();
+  }
   // AcceleratorManagerDelegate:
   void OnAcceleratorRegistered(const Accelerator& accelerator) override {
     if (!commands_.empty())