Move sync performance tests into new target

chrome/test/live_sync/perf/live_sync_timing_helper.cc

Index: chrome/test/live_sync/perf/live_sync_timing_helper.cc
diff --git a/chrome/test/live_sync/live_sync_timing_helper.cc b/chrome/test/live_sync/perf/live_sync_timing_helper.cc
similarity index 92%
rename from chrome/test/live_sync/live_sync_timing_helper.cc
rename to chrome/test/live_sync/perf/live_sync_timing_helper.cc
index d910c99c56009273788187ca016b117707baa94e..29faa4a1985da47cd6d18752311c6700d7694cda 100644
--- a/chrome/test/live_sync/live_sync_timing_helper.cc
+++ b/chrome/test/live_sync/perf/live_sync_timing_helper.cc
@@ -2,7 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "chrome/test/live_sync/live_sync_timing_helper.h"
+#include "chrome/test/live_sync/perf/live_sync_timing_helper.h"
 
 #include "base/time.h"
 #include "chrome/browser/sync/profile_sync_service_harness.h"
@@ -12,6 +12,7 @@ LiveSyncTimingHelper::LiveSyncTimingHelper() {}
 
 LiveSyncTimingHelper::~LiveSyncTimingHelper() {}
 
+// static
 base::TimeDelta LiveSyncTimingHelper::TimeSyncCycle(
     ProfileSyncServiceHarness* client) {
   base::Time start = base::Time::Now();
@@ -19,6 +20,7 @@ base::TimeDelta LiveSyncTimingHelper::TimeSyncCycle(
   return base::Time::Now() - start;
 }
 
+// static
 base::TimeDelta LiveSyncTimingHelper::TimeMutualSyncCycle(
     ProfileSyncServiceHarness* client, ProfileSyncServiceHarness* partner) {
   base::Time start = base::Time::Now();
@@ -26,6 +28,7 @@ base::TimeDelta LiveSyncTimingHelper::TimeMutualSyncCycle(
   return base::Time::Now() - start;
 }
 
+// static
 base::TimeDelta LiveSyncTimingHelper::TimeUntilQuiescence(
     std::vector<ProfileSyncServiceHarness*>& clients) {
   base::Time start = base::Time::Now();