Attempt to fix flaky ChromeOS test timeouts.

extensions/browser/guest_view/web_view/web_view_apitest.cc

Index: extensions/browser/guest_view/web_view/web_view_apitest.cc
diff --git a/extensions/browser/guest_view/web_view/web_view_apitest.cc b/extensions/browser/guest_view/web_view/web_view_apitest.cc
index e7c3dbe7cafefc6030635c8f7d2692c09d3932f1..bad79309db21a2e0b025f8b4b13b200a0c8f7d07 100644
--- a/extensions/browser/guest_view/web_view/web_view_apitest.cc
+++ b/extensions/browser/guest_view/web_view/web_view_apitest.cc
@@ -271,13 +271,7 @@ content::WebContents* WebViewAPITest::GetGuestWebContents() {
   return GetGuestViewManager()->WaitForSingleGuestCreated();
 }
 
-// Occasionally hits NOTIMPLEMENTED on Linux.  https://crbug.com/422998
-#if defined(OS_LINUX)
-#define MAYBE_AcceptTouchEvents DISABLED_AcceptTouchEvents
-#else
-#define MAYBE_AcceptTouchEvents AcceptTouchEvents
-#endif
-IN_PROC_BROWSER_TEST_F(WebViewAPITest, MAYBE_AcceptTouchEvents) {
+IN_PROC_BROWSER_TEST_F(WebViewAPITest, AcceptTouchEvents) {
   LaunchApp("web_view/accept_touch_events");
 
   content::RenderViewHost* embedder_rvh =