[Offline Pages] Clear offline pages when user clears cache.

chrome/browser/browsing_data/browsing_data_remover.cc

Index: chrome/browser/browsing_data/browsing_data_remover.cc
diff --git a/chrome/browser/browsing_data/browsing_data_remover.cc b/chrome/browser/browsing_data/browsing_data_remover.cc
index 912a5cf71f6ea64aff0a8a29b535454d070cf26d..e142e3ff9e05d2a58e7001046d0fd23e2a12f58c 100644
--- a/chrome/browser/browsing_data/browsing_data_remover.cc
+++ b/chrome/browser/browsing_data/browsing_data_remover.cc
@@ -1004,7 +1004,9 @@ void BrowsingDataRemover::RemoveImpl(
                    weak_ptr_factory_.GetWeakPtr()));
   }
 
-  if ((remove_mask & REMOVE_OFFLINE_PAGE_DATA) &&
+  // For now we're considering offline pages as cache, so if we're removing
+  // cache we should remove offline pages as well.
+  if ((remove_mask & REMOVE_CACHE || remove_mask & REMOVE_OFFLINE_PAGE_DATA) &&
       offline_pages::IsOfflinePagesEnabled()) {
     waiting_for_clear_offline_page_data_ = true;
     offline_pages::OfflinePageModelFactory::GetForBrowserContext(profile_)