cc: Rename VSync to BeginFrame

chrome/test/perf/rendering/latency_tests.cc

Index: chrome/test/perf/rendering/latency_tests.cc
diff --git a/chrome/test/perf/rendering/latency_tests.cc b/chrome/test/perf/rendering/latency_tests.cc
index fdd00d77ecae94a7e0c32b10fede9f143a980704..af3c761c0b19b8daebe5809f97b4dbce5b3e28fc 100644
--- a/chrome/test/perf/rendering/latency_tests.cc
+++ b/chrome/test/perf/rendering/latency_tests.cc
@@ -99,9 +99,9 @@ const int kInputsPerFrame = 16;
 const int kClearColorGreen = 137;
 const int kMouseY = 5;
 
-// Don't analyze begin frames that may be inaccurate. Latencies can be as high
+// Don't analyze start frames that may be inaccurate. Latencies can be as high
 // as 5 frames or so, so skip the first 6 frames to get more accurate results.
-const int kIgnoreBeginFrames = 6;
+const int kIgnoreStartFrames = 6;
 // Don't analyze end frames that may be inaccurate.
 const int kIgnoreEndFrames = 4;
 // Minimum frames to produce an answer.
@@ -478,7 +478,7 @@ double LatencyTest::CalculateLatency() {
       ++swap_count;
       // Don't analyze first few swaps, because they are filling the rendering
       // pipeline and may be unstable.
-      if (swap_count > kIgnoreBeginFrames) {
+      if (swap_count > kIgnoreStartFrames) {
         // First, find the beginning of this swap.
         size_t begin_swap_pos = 0;
         EXPECT_TRUE(FindLastOf(events, query_begin_swaps_, end_swap_pos,