offline_items_collection : Added helper class to determine progress

chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java
index c368bbc5dbcaacd6ff49664ef36820c6ba129d93..acba9d90f9569ea9bc5e5c10e59c514bb663d3de 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/ui/DownloadHistoryItemWrapper.java
@@ -17,6 +17,8 @@ import org.chromium.chrome.browser.download.DownloadNotificationService;
 import org.chromium.chrome.browser.download.DownloadUtils;
 import org.chromium.chrome.browser.offlinepages.downloads.OfflinePageDownloadItem;
 import org.chromium.chrome.browser.widget.DateDividedAdapter.TimedItem;
+import org.chromium.components.offline_items_collection.OfflineItem.Progress;
+import org.chromium.components.offline_items_collection.OfflineItemProgressUnit;
 import org.chromium.components.url_formatter.UrlFormatter;
 import org.chromium.content_public.browser.DownloadState;
 import org.chromium.ui.widget.Toast;
@@ -148,8 +150,8 @@ public abstract class DownloadHistoryItemWrapper extends TimedItem {
     /** @return The file extension type. See list at the top of the file. */
     public abstract int getFileExtensionType();
 
-    /** @return How much of the download has completed, or -1 if there is no progress. */
-    abstract int getDownloadProgress();
+    /** @return How much of the download has completed, or null if there is no progress. */
+    abstract Progress getDownloadProgress();
 
     /** @return Whether the download has an unknown file size. */
     abstract boolean isIndeterminate();
@@ -305,8 +307,8 @@ public abstract class DownloadHistoryItemWrapper extends TimedItem {
         }
 
         @Override
-        public int getDownloadProgress() {
-            return mItem.getDownloadInfo().getPercentCompleted();
+        public Progress getDownloadProgress() {
+            return mItem.getDownloadInfo().getProgress();
         }
 
         @Override
@@ -406,7 +408,7 @@ public abstract class DownloadHistoryItemWrapper extends TimedItem {
             DownloadInfo oldInfo = mItem.getDownloadInfo();
             DownloadInfo newInfo = newItem.getDownloadInfo();
 
-            if (oldInfo.getPercentCompleted() != newInfo.getPercentCompleted()) return true;
+            if (oldInfo.getProgress().equals(newInfo.getProgress())) return true;
             if (oldInfo.getBytesReceived() != newInfo.getBytesReceived()) return true;
             if (oldInfo.state() != newInfo.state()) return true;
             if (oldInfo.isPaused() != newInfo.isPaused()) return true;
@@ -493,9 +495,9 @@ public abstract class DownloadHistoryItemWrapper extends TimedItem {
         }
 
         @Override
-        public int getDownloadProgress() {
+        public Progress getDownloadProgress() {
             // Only completed offline page downloads are shown.
-            return 100;
+            return new Progress(100, 100L, OfflineItemProgressUnit.PERCENTAGE);
         }
 
         @Override