Make PointerEvent an experimental web platform feature.

third_party/WebKit/LayoutTests/SlowTests

Index: third_party/WebKit/LayoutTests/SlowTests
diff --git a/third_party/WebKit/LayoutTests/SlowTests b/third_party/WebKit/LayoutTests/SlowTests
index 371af877c484aefa6c7f4582592e8500aba6b523..3accf2d5e13acb05b048fb1fda52770c3df64b25 100644
--- a/third_party/WebKit/LayoutTests/SlowTests
+++ b/third_party/WebKit/LayoutTests/SlowTests
@@ -74,7 +74,7 @@ crbug.com/24182 fast/encoding/char-encoding.html [ Slow ]
 crbug.com/24182 fast/frames/sandboxed-iframe-navigation-targetlink.html [ Slow ]
 crbug.com/24182 fast/html/marquee-destroyed-without-removed-from-crash.html [ Slow ]
 crbug.com/24182 fast/js/regress/string-cons-tower.html [ Slow ]
-crbug.com/24182 virtual/pointerevent/fast/events/tabindex-focus-blur-all.html [ Slow ]
+crbug.com/24182 fast/events/tabindex-focus-blur-all.html [ Slow ]
 crbug.com/24182 [ Debug ] svg/hixie/perf/003.xml [ Slow ]
 crbug.com/24182 [ Debug ] svg/hixie/perf/004.xml [ Slow ]
 crbug.com/24182 [ Debug ] svg/hixie/perf/005.xml [ Slow ]
@@ -101,7 +101,6 @@ crbug.com/451577 [ Win ] http/tests/inspector/network/network-datareceived.html
 
 # Debugger and profiler tests are slow in Release as well.
 crbug.com/450493 inspector/sources/ [ Slow ]
-crbug.com/450493 virtual/pointerevent/inspector/sources/ [ Slow ]
 crbug.com/450493 inspector-enabled/sources/ [ Slow ]
 crbug.com/450493 http/tests/inspector/sources/ [ Slow ]
 crbug.com/450493 http/tests/inspector/stacktraces/ [ Slow ]