Dynamic updating recent menu for tabs from other devices.

chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc

Index: chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc
diff --git a/chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc b/chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc
index f4368619db6f45268b46fe122c1bfa234811b39c..55617a9203b1e82ec5dc32ad2d13eb7199ee01f6 100644
--- a/chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc
+++ b/chrome/browser/ui/toolbar/recent_tabs_builder_test_helper.cc
@@ -23,6 +23,7 @@ const char kBaseSessionTag[] = "session_tag";
 const char kBaseSessionName[] = "session_name";
 const char kBaseTabUrl[] = "http://foo/?";
 const char kTabTitleFormat[] = "session=%d;window=%d;tab=%d";
+const uint64_t kMaxMinutesRange = 1000;
 
 struct TitleTimestampPair {
   base::string16 title;
@@ -135,7 +136,8 @@ SessionID::id_type RecentTabsBuilderTestHelper::GetWindowID(int session_index,
 
 void RecentTabsBuilderTestHelper::AddTab(int session_index, int window_index) {
   base::Time timestamp =
-      start_time_ + base::TimeDelta::FromMinutes(base::RandUint64());
+      start_time_ +
+      base::TimeDelta::FromMinutes(base::RandGenerator(kMaxMinutesRange));

[Peter Kasting, 2017/03/24 19:54:02]

Do we need randomness at all here?  Can we get by with just monotonically
increasing timestamps or something?  Random numbers in a test always make me
nervous.

[sath, 2017/03/27 11:29:31]

If I replace random timestamp to monotonically increasing timestamps it will
work but I'm not sure that I will not break the idea to add tabs in random order
and show them in the right order.

   AddTabWithInfo(session_index, window_index, timestamp, base::string16());
 }