Disable ServiceWorkerVersionBrowserTest.ReadResourceFailure on Android due to flakes.

content/browser/service_worker/service_worker_browsertest.cc

Index: content/browser/service_worker/service_worker_browsertest.cc
diff --git a/content/browser/service_worker/service_worker_browsertest.cc b/content/browser/service_worker/service_worker_browsertest.cc
index 0945ae4fb09412114efc996aa93d7b9b0e309a4b..3ce0823e08dac741be26ae12a411758bc2ebcc70 100644
--- a/content/browser/service_worker/service_worker_browsertest.cc
+++ b/content/browser/service_worker/service_worker_browsertest.cc
@@ -958,7 +958,14 @@ IN_PROC_BROWSER_TEST_F(ServiceWorkerVersionBrowserTest, StartNotFound) {
   StartWorker(SERVICE_WORKER_ERROR_NETWORK);
 }
 
-IN_PROC_BROWSER_TEST_F(ServiceWorkerVersionBrowserTest, ReadResourceFailure) {
+#if defined(ANDROID)
+// Flaky failures on Android; see https://crbug.com/720275.
+#define MAYBE_ReadResourceFailure DISABLED_ReadResourceFailure
+#else
+#define MAYBE_ReadResourceFailure ReadResourceFailure
+#endif
+IN_PROC_BROWSER_TEST_F(ServiceWorkerVersionBrowserTest,
+                       MAYBE_ReadResourceFailure) {
   StartServerAndNavigateToSetup();
   // Create a registration.
   RunOnIOThread(base::Bind(&self::SetUpRegistrationOnIOThread,