[LanguageModel] Clear the model when clearing full history

chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc

Index: chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc
diff --git a/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc b/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc
index c2e79d00fa7963037e40a316c2250b997e38bb12..d3e96a245101464a71977c956cb4ba38e35de620 100644
--- a/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc
+++ b/chrome/browser/browsing_data/chrome_browsing_data_remover_delegate.cc
@@ -39,6 +39,7 @@
 #include "chrome/browser/safe_browsing/safe_browsing_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/sessions/tab_restore_service_factory.h"
+#include "chrome/browser/translate/language_model_factory.h"
 #include "chrome/browser/web_data_service_factory.h"
 #include "chrome/common/features.h"
 #include "chrome/common/pref_names.h"
@@ -64,6 +65,7 @@
 #include "components/previews/core/previews_ui_service.h"
 #include "components/search_engines/template_url_service.h"
 #include "components/sessions/core/tab_restore_service.h"
+#include "components/translate/core/browser/language_model.h"
 #include "content/public/browser/plugin_data_remover.h"
 #include "content/public/browser/ssl_host_state_delegate.h"
 #include "content/public/browser/storage_partition.h"
@@ -376,6 +378,12 @@ void ChromeBrowsingDataRemoverDelegate::RemoveEmbedderData(
                                                   filter, bookmark_model);
     }
 
+    translate::LanguageModel* language_model =
+      LanguageModelFactory::GetInstance()->GetForBrowserContext(profile_);

[msramek, 2017/01/24 15:35:34]

style: 4 spaces on continuation of the previous line

[jkrcal, 2017/01/25 08:48:54]

Done.

+    if (language_model) {
+      language_model->ClearHistory(delete_begin_, delete_end_);
+    }
+
 #if BUILDFLAG(ENABLE_EXTENSIONS)
     // The extension activity log contains details of which websites extensions
     // were active on. It therefore indirectly stores details of websites a