Automatically trigger Always-Translate in new translation infobar

components/translate/core/browser/translate_infobar_delegate.cc

 // Copyright 2014 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 "components/translate/core/browser/translate_infobar_delegate.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/feature_list.h"
@@ skipping 28 matching lines @@
 // The iOS implementation, like the Android implementation, shows the "Never
 // translate" infobar after two denials. There is an offset of one because on
 // Android the last event is not counted.
 const int kAlwaysTranslateMinCount = 1;
 const int kNeverTranslateMinCount = 2;
 #else
 const int kAlwaysTranslateMinCount = 3;
 const int kNeverTranslateMinCount = 3;
 #endif
 
+// For Compact UI, if number of consecutive translations is equal to this
+// number, infobar will automatically trigger "Always Translate".
+const int kAcceptCountThreshold = 5;
+
 }  // namespace
 
 const base::Feature kTranslateCompactUI{"TranslateCompactUI",
                                         base::FEATURE_DISABLED_BY_DEFAULT};
 
 const size_t TranslateInfoBarDelegate::kNoIndex = TranslateUIDelegate::kNoIndex;
 
 TranslateInfoBarDelegate::~TranslateInfoBarDelegate() {
 }
 
@@ skipping 232 matching lines @@
 }
 
 #if defined(OS_IOS)
 void TranslateInfoBarDelegate::ShowNeverTranslateInfobar() {
   Create(true, translate_manager_, infobar()->owner(), is_off_the_record_,
          translate::TRANSLATE_STEP_NEVER_TRANSLATE, original_language_code(),
          target_language_code(), TranslateErrors::NONE, false);
 }
 #endif
 
+bool TranslateInfoBarDelegate::ShouldAutoAlwaysTranslate() {
+  return (IsCompactUIEnabled() &&
+          prefs_->GetTranslationAcceptedCount(original_language_code()) ==
+              kAcceptCountThreshold);
+}
+
 // static
 void TranslateInfoBarDelegate::GetAfterTranslateStrings(
     std::vector<base::string16>* strings,
     bool* swap_languages,
     bool autodetermined_source_language) {
   DCHECK(strings);
 
   if (autodetermined_source_language) {
     size_t offset;
     base::string16 text = l10n_util::GetStringFUTF16(
@@ skipping 60 matching lines @@
   return PAGE_ACTION_TYPE;
 }
 
 int TranslateInfoBarDelegate::GetIconId() const {
   return translate_manager_->translate_client()->GetInfobarIconID();
 }
 
 void TranslateInfoBarDelegate::InfoBarDismissed() {
   if (step_ != translate::TRANSLATE_STEP_BEFORE_TRANSLATE)
     return;
-
+  if (IsCompactUIEnabled())
+    return;
   // The user closed the infobar without clicking the translate button.
   TranslationDeclined();
   UMA_HISTOGRAM_BOOLEAN("Translate.DeclineTranslateCloseInfobar", true);
 }
 
 TranslateInfoBarDelegate*
     TranslateInfoBarDelegate::AsTranslateInfoBarDelegate() {
   return this;
 }
 
 }  // namespace translate