Notification scheduler: Remove ShowNotificationInternal.

This CL removed a for-test function since it's no longer used.

Bug: NONE
Change-Id: I998b98f68e9bba9f8366747c4bc7854dfbc97ba3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1728180Reviewed-by: David Trainor <dtrainor@chromium.org>
Commit-Queue: Xing Liu <xingliu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#683212}

chrome/browser/notifications/scheduler/display_agent_android.cc

@@ -91,13 +91,6 @@ void DisplayAgentAndroid::ShowNotification(
       env, static_cast<int>(system_data->type),
       ConvertUTF8ToJavaString(env, system_data->guid));
 
-  ShowNotificationInternal(env, java_notification_data, java_system_data);
-}
-
-void DisplayAgentAndroid::ShowNotificationInternal(
-    JNIEnv* env,
-    const base::android::JavaRef<jobject>& java_notification_data,
-    const base::android::JavaRef<jobject>& java_system_data) {
   Java_DisplayAgent_showNotification(env, java_notification_data,
                                      java_system_data);
 }

chrome/browser/notifications/scheduler/display_agent_android.h

@@ -16,13 +16,6 @@ class DisplayAgentAndroid : public notifications::DisplayAgent {
   DisplayAgentAndroid();
   ~DisplayAgentAndroid() override;
 
- protected:
-  // Protected for testing.
-  virtual void ShowNotificationInternal(
-      JNIEnv* env,
-      const base::android::JavaRef<jobject>& notificationData,
-      const base::android::JavaRef<jobject>& systemData);
-
  private:
   void ShowNotification(
       std::unique_ptr<notifications::NotificationData> notification_data,