Implement deleteItem and openItem on OfflinePageDownloadBridge.

chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc

Index: chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc
diff --git a/chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc b/chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc
index 44d9827d6dd86796205b8e5d4bc80512870d7a4a..ec3dc9f3990632710d335bce35aaa66b20e9fa56 100644
--- a/chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc
+++ b/chrome/browser/android/offline_pages/downloads/offline_page_download_bridge.cc
@@ -91,6 +91,25 @@ ScopedJavaLocalRef<jobject> OfflinePageDownloadBridge::GetItemByGuid(
   return ToJavaOfflinePageDownloadItem(env, *item);
 }
 
+void OfflinePageDownloadBridge::DeleteItemByGuid(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jstring>& j_guid) {

[fgorski, 2016/08/09 04:00:50]

including here.

[Dmitry Titov, 2016/08/12 04:01:39]

Done.

+  std::string guid = ConvertJavaStringToUTF8(env, j_guid);
+  download_ui_adapter_->DeleteItem(guid);
+}
+
+ScopedJavaLocalRef<jstring> OfflinePageDownloadBridge::GetOfflineUrlByGuid(
+    JNIEnv* env,
+    const JavaParamRef<jobject>& obj,
+    const base::android::JavaParamRef<jstring>& j_guid) {

[fgorski, 2016/08/09 04:00:50]

and here.

[Dmitry Titov, 2016/08/12 04:01:39]

Done.

+  std::string guid = ConvertJavaStringToUTF8(env, j_guid);
+  std::string url = download_ui_adapter_->GetOfflineUrlByGuid(guid);
+  if (url.empty())
+    return ScopedJavaLocalRef<jstring>();
+  return ConvertUTF8ToJavaString(env, url);

[fgorski, 2016/08/09 04:00:50]

It should simply work if url is empty, I don't think you need 2 return
statements here.

[Dmitry Titov, 2016/08/12 04:01:39]

Done.

+}
+
 void OfflinePageDownloadBridge::ItemsLoaded() {
   JNIEnv* env = AttachCurrentThread();
   ScopedJavaLocalRef<jobject> obj = weak_java_ref_.get(env);