Move offline related functions from Tab to OfflinePageUtils

chrome/browser/android/offline_pages/offline_page_bridge.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/android/offline_pages/offline_page_bridge.h"
 
 #include <memory>
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 613 matching lines @@
     const JavaParamRef<jstring>& j_url,
     int ui_action) {
   content::WebContents* web_contents =
       content::WebContents::FromJavaWebContents(j_web_contents);
   OfflinePageUtils::ScheduleDownload(
       web_contents, ConvertJavaStringToUTF8(env, j_namespace),
       GURL(ConvertJavaStringToUTF8(env, j_url)),
       static_cast<OfflinePageUtils::DownloadUIActionFlags>(ui_action));
 }
 
+jboolean OfflinePageBridge::IsOfflinePage(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jobject>& j_web_contents) {
+  content::WebContents* web_contents =
+      content::WebContents::FromJavaWebContents(j_web_contents);
+  return offline_pages::OfflinePageUtils::GetOfflinePageFromWebContents(
+             web_contents) != nullptr;
+}
+
+ScopedJavaLocalRef<jobject> OfflinePageBridge::GetOfflinePage(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jobject>& j_web_contents) {
+  const offline_pages::OfflinePageItem* offline_page =
+      offline_pages::OfflinePageUtils::GetOfflinePageFromWebContents(
+          content::WebContents::FromJavaWebContents(j_web_contents));
+  if (!offline_page)
+    return ScopedJavaLocalRef<jobject>();
+
+  return offline_pages::android::OfflinePageBridge::ConvertToJavaOfflinePage(
+      env, *offline_page);
+}
+
 void OfflinePageBridge::NotifyIfDoneLoading() const {
   if (!offline_page_model_->is_loaded())
     return;
   JNIEnv* env = base::android::AttachCurrentThread();
   Java_OfflinePageBridge_offlinePageModelLoaded(env, java_ref_);
 }
 
 
 ScopedJavaLocalRef<jobject> OfflinePageBridge::CreateClientId(
     JNIEnv* env,
     const ClientId& client_id) const {
   return Java_OfflinePageBridge_createClientId(
       env, ConvertUTF8ToJavaString(env, client_id.name_space),
       ConvertUTF8ToJavaString(env, client_id.id));
 }
 
 bool RegisterOfflinePageBridge(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace android
 }  // namespace offline_pages