[SF] Rename variables to match style

This CL renames the variables so they are more readable and changes
snake case to camel case.

Test: m
Bug: 153991408
Change-Id: I80faa91ab514395dbf53c52282d62444c9aa579a
diff --git a/services/surfaceflinger/Scheduler/Scheduler.cpp b/services/surfaceflinger/Scheduler/Scheduler.cpp
index cd6075f..6828d7a 100644
--- a/services/surfaceflinger/Scheduler/Scheduler.cpp
+++ b/services/surfaceflinger/Scheduler/Scheduler.cpp
@@ -66,15 +66,15 @@
     // TODO (140302863) remove this and use the vsync_reactor system.
     if (property_get_bool("debug.sf.vsync_reactor", true)) {
         // TODO (144707443) tune Predictor tunables.
-        static constexpr int default_rate = 60;
-        static constexpr auto initial_period =
-                std::chrono::duration<nsecs_t, std::ratio<1, default_rate>>(1);
+        static constexpr int defaultRate = 60;
+        static constexpr auto initialPeriod =
+                std::chrono::duration<nsecs_t, std::ratio<1, defaultRate>>(1);
         static constexpr size_t vsyncTimestampHistorySize = 20;
         static constexpr size_t minimumSamplesForPrediction = 6;
         static constexpr uint32_t discardOutlierPercent = 20;
         auto tracker = std::make_unique<
                 scheduler::VSyncPredictor>(std::chrono::duration_cast<std::chrono::nanoseconds>(
-                                                   initial_period)
+                                                   initialPeriod)
                                                    .count(),
                                            vsyncTimestampHistorySize, minimumSamplesForPrediction,
                                            discardOutlierPercent);