Fix crash on extension IME reloading on Linux Desktop with chromeos=1.

chrome/browser/chromeos/input_method/input_method_engine_ibus.cc

Index: chrome/browser/chromeos/input_method/input_method_engine_ibus.cc
diff --git a/chrome/browser/chromeos/input_method/input_method_engine_ibus.cc b/chrome/browser/chromeos/input_method/input_method_engine_ibus.cc
index 0e36d43325b661edfcd1096a05ab7735d4085d50..4ee01b948361246e4d95f7d0348250b1defd0b32 100644
--- a/chrome/browser/chromeos/input_method/input_method_engine_ibus.cc
+++ b/chrome/browser/chromeos/input_method/input_method_engine_ibus.cc
@@ -61,9 +61,13 @@ InputMethodEngineIBus::InputMethodEngineIBus()
 }
 
 InputMethodEngineIBus::~InputMethodEngineIBus() {
-  if (object_path_.IsValid())
-    GetCurrentService()->UnsetEngine();
   input_method::GetInputMethodManager()->RemoveInputMethodExtension(ibus_id_);
+
+  // Do not unset engine before removing input method extension, above function
+  // may call reset function of engine object.
+  // TODO(nona): Call Reset manually here and remove relevant code from
+  //             InputMethodManager once ibus-daemon is gone. (crbug.com/158273)
+  GetCurrentService()->UnsetEngine(this);
 }
 
 void InputMethodEngineIBus::Initialize(