Do not consume keys for DISABLE_CAPS_LOCK when caps lock is off.

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 8a7b4cfa32a6440833a946db0770023d00d1a7d5..089c1a647146aae8ef0c5b1da3f29c0e4e9b080a 100644
--- a/ash/accelerators/accelerator_controller.cc
+++ b/ash/accelerators/accelerator_controller.cc
@@ -556,9 +556,11 @@ bool AcceleratorController::PerformAction(int action,
         // We totally ignore this accelerator.
         return false;
       }
-      if (shell->caps_lock_delegate()->IsCapsLockEnabled())
+      if (shell->caps_lock_delegate()->IsCapsLockEnabled()) {
         shell->caps_lock_delegate()->SetCapsLockEnabled(false);
-      return true;
+        return true;
+      }
+      return false;
     case TOGGLE_CAPS_LOCK:
       shell->caps_lock_delegate()->ToggleCapsLock();
       return true;