Fix bug on open downloaded articles in incognito.

Currently opening downloaded articles and most visited website does not
work, since OfflinePageUtils returns null for given off-the-record
profile. This CL fix the bug by passing always regular profile to
OfflinePageUtil. It is safe, since offline page download is only
available for regular mode.

Bug: 1093758
Change-Id: Id542113e2d5676541766fbd2a2770e954c0b24a7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2299233Reviewed-by: Ramin Halavati <rhalavati@chromium.org>
Reviewed-by: Carlos Knippschild <carlosk@chromium.org>
Reviewed-by: Jian Li <jianli@chromium.org>
Commit-Queue: Side YILMAZ <sideyilmaz@chromium.org>
Cr-Commit-Position: refs/heads/master@{#795496}

chrome/android/java/src/org/chromium/chrome/browser/offlinepages/downloads/OfflinePageDownloadBridge.java

@@ -89,8 +89,6 @@ public class OfflinePageDownloadBridge {
     @CalledByNative
     private static void openItem(final String url, final long offlineId, final int location,
             final boolean isIncognito, final boolean openInCct) {
-        Profile profile = isIncognito ? Profile.getLastUsedRegularProfile().getPrimaryOTRProfile()
-                                      : Profile.getLastUsedRegularProfile();
         OfflinePageUtils.getLoadUrlParamsForOpeningOfflineVersion(
                 url, offlineId, location, (params) -> {
                     if (params == null) return;
@@ -104,7 +102,7 @@ public class OfflinePageDownloadBridge {
                     } else {
                         openItemInNewTab(offlineId, params, isIncognito);
                     }
-                }, profile);
+                }, Profile.getLastUsedRegularProfile());
     }
 
     /**