Add unit tests for sub-components of CaptureScheduler.

remoting/host/capture_scheduler.h

Index: remoting/host/capture_scheduler.h
diff --git a/remoting/host/capture_scheduler.h b/remoting/host/capture_scheduler.h
index b743f578d53717b41f319ce6fc614f3fc85cecf5..af770a4d86fd200e2401aaf6beb02016249aaf4f 100644
--- a/remoting/host/capture_scheduler.h
+++ b/remoting/host/capture_scheduler.h
@@ -19,13 +19,17 @@ class CaptureScheduler {
   CaptureScheduler();
   ~CaptureScheduler();
 
-  // Determine the time delay from current time to perform next capture.
+  // Returns the time to wait after initiating a capture before triggering
+  // the next.
   base::TimeDelta NextCaptureDelay();
 
-  // Record time spent on capturing and encoding.
+  // Records time spent on capturing and encoding.
   void RecordCaptureTime(base::TimeDelta capture_time);
   void RecordEncodeTime(base::TimeDelta encode_time);
 
+  // Overrides the number of processors for testing.
+  void SetNumOfProcessorsForTest(int num_of_processors);
+
  private:
   int num_of_processors_;
   RunningAverage capture_time_;