[components] Switch {RefCounted}ProfileKeyedService to use BrowserContext

chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc

Index: chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc
diff --git a/chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc b/chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc
index 02a7655538a5f84b9d714a1ea8c91dc04f44a4eb..b9b9ce49cb748bec664e807366f8b313c09be97f 100644
--- a/chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc
+++ b/chrome/browser/spellchecker/spellcheck_custom_dictionary_unittest.cc
@@ -53,8 +53,9 @@ syncer::SyncDataList GetAllSyncDataNoLimit(
 
 }  // namespace
 
-static ProfileKeyedService* BuildSpellcheckService(Profile* profile) {
-  return new SpellcheckService(profile);
+static ProfileKeyedService* BuildSpellcheckService(
+    content::BrowserContext* profile) {
+  return new SpellcheckService(static_cast<Profile*>(profile));
 }
 
 class SpellcheckCustomDictionaryTest : public testing::Test {