Enable pyauto-based page cycler test that uses Web Page Replay on Win/Mac/Linux.

chrome/test/functional/PYAUTO_TESTS

Index: chrome/test/functional/PYAUTO_TESTS
diff --git a/chrome/test/functional/PYAUTO_TESTS b/chrome/test/functional/PYAUTO_TESTS
index 0ba925f0ef245d37e2e93127c63431782afbea20..7b6d31ddd435394b034ea49ff89e3968a407b372 100644
--- a/chrome/test/functional/PYAUTO_TESTS
+++ b/chrome/test/functional/PYAUTO_TESTS
@@ -603,11 +603,6 @@
     'all': [
       'perf',
 
-      # ==================================================
-      # Disabled tests that need to be investigated/fixed.
-      # ==================================================
-      '-perf.PageCyclerNetSimTest',  # Disable new test until vetted.
-
       # ===========================
       # Permanently-disabled tests.
       # ===========================
@@ -657,8 +652,16 @@
       '-perf.NetflixPerfTest',  # Designed only for ChromeOS.
     ],
     'chromeos': [
-      '-perf.GPUPerfTest',  # Designed only for Chrome desktop.
+      # ==================================================
+      # Disabled tests that need to be investigated/fixed.
+      # ==================================================
       '-perf.NetflixPerfTest',  # crosbug.com/p/8499.
+      '-perf.PageCyclerNetSimTest',  # Investigate Web Page Replay on ChromeOS.
+
+      # ===========================
+      # Permanently-disabled tests.
+      # ===========================
+      '-perf.GPUPerfTest',  # Designed only for Chrome desktop.
     ],
   },