[Offline pages] Extracting callbacks from the Offline Page Model

chrome/browser/android/offline_pages/offline_page_bridge.cc

Index: chrome/browser/android/offline_pages/offline_page_bridge.cc
diff --git a/chrome/browser/android/offline_pages/offline_page_bridge.cc b/chrome/browser/android/offline_pages/offline_page_bridge.cc
index d98654165ae103b9ed433d48660a7b757e871dbe..3cb9b2bf82b18547db573403df27cb443b7e8553 100644
--- a/chrome/browser/android/offline_pages/offline_page_bridge.cc
+++ b/chrome/browser/android/offline_pages/offline_page_bridge.cc
@@ -56,7 +56,7 @@ void ToJavaOfflinePageList(JNIEnv* env,
 
 void CheckPagesExistOfflineCallback(
     const ScopedJavaGlobalRef<jobject>& j_callback_obj,
-    const OfflinePageModel::CheckPagesExistOfflineResult& offline_pages) {
+    const CheckPagesExistOfflineResult& offline_pages) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
   std::vector<std::string> offline_pages_vector;
@@ -74,7 +74,7 @@ void CheckPagesExistOfflineCallback(
 void GetAllPagesCallback(
     const ScopedJavaGlobalRef<jobject>& j_result_obj,
     const ScopedJavaGlobalRef<jobject>& j_callback_obj,
-    const OfflinePageModel::MultipleOfflinePageItemResult& result) {
+    const MultipleOfflinePageItemResult& result) {
   JNIEnv* env = base::android::AttachCurrentThread();
   ToJavaOfflinePageList(env, j_result_obj.obj(), result);
 
@@ -90,7 +90,7 @@ void HasPagesCallback(const ScopedJavaGlobalRef<jobject>& j_callback_obj,
 
 void SavePageCallback(const ScopedJavaGlobalRef<jobject>& j_callback_obj,
                       const GURL& url,
-                      OfflinePageModel::SavePageResult result,
+                      SavePageResult result,
                       int64_t offline_id) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
@@ -100,7 +100,7 @@ void SavePageCallback(const ScopedJavaGlobalRef<jobject>& j_callback_obj,
 }
 
 void DeletePageCallback(const ScopedJavaGlobalRef<jobject>& j_callback_obj,
-                        OfflinePageModel::DeletePageResult result) {
+                        DeletePageResult result) {
   JNIEnv* env = base::android::AttachCurrentThread();
 
   Java_DeletePageCallback_onDeletePageDone(