Don't display drop down arrows in rAc dialog unless there is a suggestion

chrome/browser/ui/android/autofill/autofill_dialog_view_android.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/android/autofill/autofill_dialog_view_android.h"
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/android/scoped_java_ref.h"
 #include "base/utf_string_conversions.h"
@@ skipping 128 matching lines @@
         env,
         field_array.obj(),
         i,
         reinterpret_cast<jint>(&input),
         input.type,
         placeholder.obj(),
         autofilled.obj());
   }
 
   ui::MenuModel* menuModel = controller_->MenuModelForSection(section);
-  const int itemCount = menuModel->GetItemCount();
+  const int itemCount = menuModel ? menuModel->GetItemCount() : 0;
   ScopedJavaLocalRef<jobjectArray> menu_array =
       Java_AutofillDialogGlue_createAutofillDialogMenuItemArray(env,
                                                                 itemCount);
 
   int checkedItem = -1;
 
   for (int i = 0; i < itemCount; ++i) {
     if (menuModel->IsItemCheckedAt(i))
       checkedItem = i;
 
@@ skipping 341 matching lines @@
 }
 
 void AutofillDialogViewAndroid::UpdateSaveLocallyCheckBox() {
   // TODO(aruslan) : Call this when at least one section is being edited.
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_AutofillDialogGlue_updateSaveLocallyCheckBox(
       env, java_object_.obj(), controller_->ShouldOfferToSaveInChrome());
 }
 
 }  // namespace autofill