Keyboard shortcuts: minor naming refactor

Replace all occurrences of showKeyboardShortcuts* with
toggleKeyboardShortcuts* in order to be inline with
the current/desired behavior.

Change-Id: Ia076952ec40963b2727fd1f855b64859b94b1643
diff --git a/services/core/java/com/android/server/policy/PhoneWindowManager.java b/services/core/java/com/android/server/policy/PhoneWindowManager.java
index 72611b7..4fbc030 100644
--- a/services/core/java/com/android/server/policy/PhoneWindowManager.java
+++ b/services/core/java/com/android/server/policy/PhoneWindowManager.java
@@ -2879,7 +2879,7 @@
         } else if (keyCode == KeyEvent.KEYCODE_SLASH && event.isMetaPressed()) {
             if (down) {
                 if (repeatCount == 0) {
-                    showKeyboardShortcutsMenu();
+                    toggleKeyboardShortcutsMenu();
                 }
             }
         } else if (keyCode == KeyEvent.KEYCODE_ASSIST) {
@@ -3311,11 +3311,11 @@
         }
     }
 
-    private void showKeyboardShortcutsMenu() {
+    private void toggleKeyboardShortcutsMenu() {
         try {
             IStatusBarService statusbar = getStatusBarService();
             if (statusbar != null) {
-                statusbar.showKeyboardShortcutsMenu();
+                statusbar.toggleKeyboardShortcutsMenu();
             }
         } catch (RemoteException e) {
             Slog.e(TAG, "RemoteException when showing keyboard shortcuts menu", e);