[content]: Add CanExceedIdleDeadlineIfRequired function to RendererScheduler.

content/renderer/scheduler/renderer_scheduler_impl_unittest.cc

Index: content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
diff --git a/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc b/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
index 79527d097cf22658282d94b2b4d10ee8b008fd72..533dd797cfee57acb6c19cc84ad5b70bedb2a985 100644
--- a/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
+++ b/content/renderer/scheduler/renderer_scheduler_impl_unittest.cc
@@ -1164,4 +1164,17 @@ TEST_F(RendererSchedulerImplTest, TestLongIdlePeriodInTouchStartPolicy) {
   EXPECT_EQ(1, run_count);
 }
 
+TEST_F(RendererSchedulerImplTest, TestIsMaximumIdleDeadline) {
+  base::TimeTicks short_deadline =
+      clock_->Now() + base::TimeDelta::FromMilliseconds(10);
+  EXPECT_FALSE(scheduler_->IsMaximumIdleDeadline(short_deadline));
+  base::TimeTicks long_deadline =
+      clock_->Now() + maximum_idle_period_duration();
+  EXPECT_TRUE(scheduler_->IsMaximumIdleDeadline(long_deadline));
+  base::TimeTicks within_slop_long_deadline =
+      clock_->Now() - base::TimeDelta::FromMilliseconds(1) +
+      maximum_idle_period_duration();
+  EXPECT_TRUE(scheduler_->IsMaximumIdleDeadline(within_slop_long_deadline));
+}
+
 }  // namespace content