Pass TranslateStep into CreateMockTranslateInfoBarDelegate()

This will allow tests to create delegates with different steps.

Bug: 1071914
Change-Id: Ic0d4e5d6941f2afbea51346e92dc63874bcf37f8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2219085
Commit-Queue: Chris Lu <thegreenfrog@chromium.org>
Reviewed-by: John Wu <jzw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#774311}

components/translate/core/browser/mock_translate_infobar_delegate.cc

@@ -57,10 +57,10 @@ MockTranslateInfoBarDelegateFactory::~MockTranslateInfoBarDelegateFactory() {}
 
 // static
 std::unique_ptr<MockTranslateInfoBarDelegate>
-MockTranslateInfoBarDelegateFactory::CreateMockTranslateInfoBarDelegate() {
+MockTranslateInfoBarDelegateFactory::CreateMockTranslateInfoBarDelegate(
+    translate::TranslateStep step) {
   return std::make_unique<MockTranslateInfoBarDelegate>(
-      manager_->GetWeakPtr(), false,
-      translate::TranslateStep::TRANSLATE_STEP_BEFORE_TRANSLATE, "fr", "en",
+      manager_->GetWeakPtr(), false, step, "fr", "en",
       translate::TranslateErrors::Type::NONE, false);
 }
 

components/translate/core/browser/mock_translate_infobar_delegate.h

@@ -68,7 +68,7 @@ class MockTranslateInfoBarDelegateFactory {
   ~MockTranslateInfoBarDelegateFactory();
 
   std::unique_ptr<MockTranslateInfoBarDelegate>
-  CreateMockTranslateInfoBarDelegate();
+  CreateMockTranslateInfoBarDelegate(translate::TranslateStep step);
 
   MockTranslateInfoBarDelegate* GetMockTranslateInfoBarDelegate() {
     return delegate_.get();