Added last_access_time to DownloadItem and History DB

chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java

Index: chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
index 3eacfd0dd893c5adee1cdb02496f47418e539ef1..01f9cb84fa107a504795c90d892385039aea4a6e 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/download/DownloadManagerService.java
@@ -1067,6 +1067,10 @@ public class DownloadManagerService extends BroadcastReceiver implements
 
     /** See {@link #openDownloadedContent(Context, String, boolean, long)}. */
     protected void openDownloadedContent(final DownloadInfo downloadInfo, final long downloadId) {
+        // TODO(shaktisahu): Move this to the broader openDownloadedContent() or a better place if
+        // possible.
+        updateLastAccessTime(downloadInfo.getDownloadGuid(), System.currentTimeMillis(),
+                downloadInfo.isOffTheRecord());
         openDownloadedContent(mContext, downloadInfo.getFilePath(),
                 isSupportedMimeType(downloadInfo.getMimeType()), downloadId);
     }
@@ -1777,6 +1781,19 @@ public class DownloadManagerService extends BroadcastReceiver implements
         return mAutoResumptionLimit;
     }
 
+    /**
+     * Updates the last access time of a download.
+     * @param downloadGuid Download GUID.
+     * @param lastAccessTime The new value of the last access time.
+     * @param isOffTheRecord Whether the download is off the record.
+     */
+    @Override
+    public void updateLastAccessTime(
+            String downloadGuid, long lastAccessTime, boolean isOffTheRecord) {
+        nativeUpdateLastAccessTime(
+                getNativeDownloadManagerService(), downloadGuid, lastAccessTime, isOffTheRecord);
+    }
+
     @Override
     public void onMaxBandwidthChanged(double maxBandwidthMbps) {}
 
@@ -1809,4 +1826,6 @@ public class DownloadManagerService extends BroadcastReceiver implements
             long nativeDownloadManagerService, boolean isOffTheRecord);
     private native void nativeCheckForExternallyRemovedDownloads(
             long nativeDownloadManagerService, boolean isOffTheRecord);
+    private native void nativeUpdateLastAccessTime(long nativeDownloadManagerService,
+            String downloadGuid, long lastAccessTime, boolean isOffTheRecord);
 }