Initialize need_to_show_notification_ in PreviewsLitePageDecider

Bug: 993156
Change-Id: Ie6dfc9269805104d3a48fe96e48477ca700cbac7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1750924Reviewed-by: Robert Ogden <robertogden@chromium.org>
Commit-Queue: Sophie Chang <sophiechang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#686334}

chrome/browser/data_saver/data_saver_top_host_provider_unittest.cc

@@ -179,15 +179,7 @@ TEST_F(DataSaverTopHostProviderTest,
   ASSERT_FALSE(DataSaverTopHostProvider::CreateIfAllowed(profile()));
 }
 
-#if defined(MEMORY_SANITIZER)
-#define MAYBE_CreateIfAllowedDataSaverUserInfobarSeen \
-  DISABLED_CreateIfAllowedDataSaverUserInfobarSeen
-#else
-#define MAYBE_CreateIfAllowedDataSaverUserInfobarSeen \
-  CreateIfAllowedDataSaverUserInfobarSeen
-#endif
-TEST_F(DataSaverTopHostProviderTest,
-       MAYBE_CreateIfAllowedDataSaverUserInfobarSeen) {
+TEST_F(DataSaverTopHostProviderTest, CreateIfAllowedDataSaverUserInfobarSeen) {
   SetDataSaverEnabled(true);
 
   // Navigate so infobar is shown.

chrome/browser/previews/previews_lite_page_decider.cc

@@ -143,6 +143,7 @@ PreviewsLitePageDecider::PreviewsLitePageDecider(
       page_id_(base::RandUint64()),
       drp_settings_(nullptr),
       pref_service_(nullptr),
+      need_to_show_notification_(false),
       host_bypass_blacklist_(std::make_unique<base::DictionaryValue>()),
       drp_headers_valid_(false) {
   if (!browser_context)