[Downloads] Pass more DownloadItem state to java

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 90c80dbb8778fa085ad6e0ce0992e29de01d7e83..517194dd0e60d070d737896818772a6570c96571 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
@@ -15,6 +15,7 @@ import org.chromium.chrome.browser.download.DownloadItem;
 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.content_public.browser.DownloadState;
 import org.chromium.ui.widget.Toast;
 
 import java.io.File;
@@ -67,6 +68,9 @@ public abstract class DownloadHistoryItemWrapper implements TimedItem {
     /** @return The mime type or null if the item doesn't have one. */
     public abstract String getMimeType();
 
+    /** @return How much of the download has completed, or -1 if there is no progress. */
+    public abstract int getDownloadProgress();
+
     /** Called when the user wants to open the file. */
     abstract void open();
 
@@ -144,7 +148,11 @@ public abstract class DownloadHistoryItemWrapper implements TimedItem {
 
         @Override
         public long getFileSize() {
-            return mItem.getDownloadInfo().getContentLength();
+            if (mItem.getDownloadInfo().state() == DownloadState.COMPLETE) {
+                return mItem.getDownloadInfo().getContentLength();
+            } else {
+                return 0;
+            }
         }
 
         @Override
@@ -163,6 +171,11 @@ public abstract class DownloadHistoryItemWrapper implements TimedItem {
         }
 
         @Override
+        public int getDownloadProgress() {
+            return mItem.getDownloadInfo().getPercentCompleted();
+        }
+
+        @Override
         public void open() {
             Context context = ContextUtils.getApplicationContext();
 
@@ -266,6 +279,11 @@ public abstract class DownloadHistoryItemWrapper implements TimedItem {
         }
 
         @Override
+        public int getDownloadProgress() {
+            return -1;
+        }
+
+        @Override
         public void open() {
             mBackendProvider.getOfflinePageBridge().openItem(getId(), mComponentName);
             recordOpenSuccess();