De-dupe input encodings in TemplateURLs.

chrome/browser/search_engines/template_url_service_sync_unittest.cc

Index: chrome/browser/search_engines/template_url_service_sync_unittest.cc
===================================================================
--- chrome/browser/search_engines/template_url_service_sync_unittest.cc	(revision 144319)
+++ chrome/browser/search_engines/template_url_service_sync_unittest.cc	(working copy)
@@ -1352,6 +1352,48 @@
             UTF8ToUTF16(GetKeyword(key2_change.sync_data())));
 }
 
+TEST_F(TemplateURLServiceSyncTest, DuplicateEncodingsRemoved) {
+  // Create a sync entry with duplicate encodings.
+  SyncDataList initial_data;
+
+  TemplateURLData data;
+  data.short_name = ASCIIToUTF16("test");
+  data.SetKeyword(ASCIIToUTF16("keyword"));
+  data.SetURL("http://test/%s");
+  data.input_encodings.push_back("UTF-8");
+  data.input_encodings.push_back("UTF-8");
+  data.input_encodings.push_back("UTF-16");
+  data.input_encodings.push_back("UTF-8");
+  data.input_encodings.push_back("Big5");
+  data.input_encodings.push_back("UTF-16");
+  data.input_encodings.push_back("Big5");
+  data.input_encodings.push_back("Windows-1252");
+  data.date_created = Time::FromTimeT(100);
+  data.last_modified = Time::FromTimeT(100);
+  data.sync_guid = "keyword";
+  scoped_ptr<TemplateURL> turl(new TemplateURL(NULL, data));
+  initial_data.push_back(
+      TemplateURLService::CreateSyncDataFromTemplateURL(*turl));
+
+  // Now try to sync the data locally.
+  model()->MergeDataAndStartSyncing(syncable::SEARCH_ENGINES, initial_data,
+      PassProcessor(), CreateAndPassSyncErrorFactory());
+
+  // The entry should have been added, with duplicate encodings removed.
+  TemplateURL* keyword =
+      model()->GetTemplateURLForKeyword(ASCIIToUTF16("keyword"));
+  ASSERT_FALSE(keyword == NULL);
+  EXPECT_EQ(4U, keyword->input_encodings().size());
+
+  // We should also have gotten a corresponding UPDATE pushed upstream.
+  EXPECT_GE(processor()->change_list_size(), 1U);
+  ASSERT_TRUE(processor()->contains_guid("keyword"));
+  SyncChange keyword_change = processor()->change_for_guid("keyword");
+  EXPECT_EQ(SyncChange::ACTION_UPDATE, keyword_change.change_type());
+  EXPECT_EQ("UTF-8;UTF-16;Big5;Windows-1252", keyword_change.sync_data().
+      GetSpecifics().search_engine().input_encodings());
+}
+
 TEST_F(TemplateURLServiceSyncTest, MergeTwoClientsBasic) {
   // Start off B with some empty data.
   model_b()->MergeDataAndStartSyncing(syncable::SEARCH_ENGINES,