[Autofill] Componentize AutofillCCInfoBarDelegate.

android_webview/native/aw_autofill_client.cc

Index: android_webview/native/aw_autofill_client.cc
diff --git a/android_webview/native/aw_autofill_client.cc b/android_webview/native/aw_autofill_client.cc
index bc056e33b0ab64274bdafbe75e282fb59cc130d8..2e0f53e1473124f1f43a2acf7043207a4156a209 100644
--- a/android_webview/native/aw_autofill_client.cc
+++ b/android_webview/native/aw_autofill_client.cc
@@ -67,7 +67,7 @@ PrefService* AwAutofillClient::GetPrefs() {
 }
 
 autofill::PersonalDataManager* AwAutofillClient::GetPersonalDataManager() {
-  return NULL;
+  return nullptr;
 }
 
 scoped_refptr<autofill::AutofillWebDataService>
@@ -188,11 +188,6 @@ void AwAutofillClient::ShowUnmaskPrompt() {
   NOTIMPLEMENTED();
 }
 
-void AwAutofillClient::ConfirmSaveCreditCard(
-    const base::Closure& save_card_callback) {
-  NOTIMPLEMENTED();
-}
-
 bool AwAutofillClient::HasCreditCardScanFeature() {
   return false;
 }
@@ -212,4 +207,8 @@ bool RegisterAwAutofillClient(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
+infobars::InfoBarManager* GetInfoBarManager() {
+  return nullptr;
+}
+
 }  // namespace android_webview