NoState Prefetch: nostate prefetch browser tests.

chrome/browser/prerender/prerender_manager.cc

Index: chrome/browser/prerender/prerender_manager.cc
diff --git a/chrome/browser/prerender/prerender_manager.cc b/chrome/browser/prerender/prerender_manager.cc
index 5d3bf457b1d8d35ac5971e504204f4255e9980a2..5aec206c98c4fbf341f515b23a9a1d5f75d7a6e8 100644
--- a/chrome/browser/prerender/prerender_manager.cc
+++ b/chrome/browser/prerender/prerender_manager.cc
@@ -165,9 +165,6 @@ struct PrerenderManager::NavigationRecord {
 PrerenderManager::PrerenderManager(Profile* profile)
     : profile_(profile),
       prerender_contents_factory_(PrerenderContents::CreateFactory()),
-      last_prerender_start_time_(
-          GetCurrentTimeTicks() -
-          base::TimeDelta::FromMilliseconds(kMinTimeBetweenPrerendersMs)),
       prerender_history_(new PrerenderHistory(kHistoryLength)),
       histograms_(new PrerenderHistograms()),
       profile_network_bytes_(0),
@@ -175,6 +172,10 @@ PrerenderManager::PrerenderManager(Profile* profile)
       weak_factory_(this) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
+  last_prerender_start_time_ =
+      GetCurrentTimeTicks() -
+      base::TimeDelta::FromMilliseconds(kMinTimeBetweenPrerendersMs);
+
   // Certain experiments override our default config_ values.
   switch (PrerenderManager::GetMode()) {
     case PrerenderManager::PRERENDER_MODE_EXPERIMENT_MULTI_PRERENDER_GROUP:
@@ -1094,13 +1095,23 @@ void PrerenderManager::DeleteOldEntries() {
 }
 
 base::Time PrerenderManager::GetCurrentTime() const {
+  if (time_override_) {
+    return time_override_->GetCurrentTime();
+  }
   return base::Time::Now();
 }
 
 base::TimeTicks PrerenderManager::GetCurrentTimeTicks() const {
+  if (time_override_) {
+    return time_override_->GetCurrentTimeTicks();
+  }
   return base::TimeTicks::Now();
 }
 
+void PrerenderManager::SetTimeOverride(std::unique_ptr<TimeOverride> override) {
+  time_override_ = std::move(override);
+}
+
 std::unique_ptr<PrerenderContents> PrerenderManager::CreatePrerenderContents(
     const GURL& url,
     const content::Referrer& referrer,