Add EF_IS_REPEAT flag to KeyEvent to handle repeated accelerators correctly.

ash/accelerators/accelerator_delegate.cc

Index: ash/accelerators/accelerator_delegate.cc
diff --git a/ash/accelerators/accelerator_delegate.cc b/ash/accelerators/accelerator_delegate.cc
index dc83437aceef6f0d5863cfbd4a42a14e9081e8be..6e1d9ca99624a5c632b5938728de8b488777bdf2 100644
--- a/ash/accelerators/accelerator_delegate.cc
+++ b/ash/accelerators/accelerator_delegate.cc
@@ -19,14 +19,6 @@ AcceleratorDelegate::AcceleratorDelegate() {
 AcceleratorDelegate::~AcceleratorDelegate() {
 }
 
-void AcceleratorDelegate::PreProcessAccelerator(
-    const ui::Accelerator& accelerator) {
-  // Fill out context object so AcceleratorController will know what
-  // was the previous accelerator or if the current accelerator is repeated.
-  Shell::GetInstance()->accelerator_controller()->context()->UpdateContext(
-      accelerator);
-}
-
 // Uses the top level window so if the target is a web contents window the
 // containing parent window will be checked for the property.
 bool AcceleratorDelegate::CanConsumeSystemKeys(const ui::KeyEvent& event) {