Disable ExpandablePaymentHandlerBrowserTest.WindowClientReady

[Android Sheriff] Disable ExpandablePaymentHandlerBrowserTest.WindowClientReady

This test is recent. It was introduced by:
https://chromium-review.googlesource.com/c/chromium/src/+/2037643

It is flaky on (at least) Android.
TBR=tedchoc@chromium.org,rouslan@chromium.org,maxlg@chromium.org>

Bug: 1075481
Change-Id: I3284b7deeba92946326410539d94c88e5b1c1d4b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2166185Reviewed-by: Arthur Sonzogni <arthursonzogni@chromium.org>
Reviewed-by: Rouslan Solomakhin <rouslan@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/master@{#762781}

chrome/browser/payments/expandable_payment_handler_browsertest.cc

@@ -3,10 +3,17 @@
 // found in the LICENSE file.
 
 #include "base/test/scoped_feature_list.h"
+#include "build/build_config.h"
 #include "chrome/browser/flags/android/chrome_feature_list.h"
 #include "chrome/test/payments/payment_request_platform_browsertest_base.h"
 #include "net/test/embedded_test_server/embedded_test_server.h"
 
+#if defined(OS_ANDROID)
+#define DISABLE_ON_ANDROID(test_name) DISABLED_##test_name
+#else
+#define DISABLE_ON_ANDROID(test_name) test_name
+#endif
+
 namespace payments {
 namespace {
 
@@ -112,7 +119,9 @@ IN_PROC_BROWSER_TEST_F(ExpandablePaymentHandlerBrowserTest,
 }
 
 // Make sure openWindow() can be resolved into window client.
-IN_PROC_BROWSER_TEST_F(ExpandablePaymentHandlerBrowserTest, WindowClientReady) {
+// Android: Flaky. See https://crbug.com/1075481.
+IN_PROC_BROWSER_TEST_F(ExpandablePaymentHandlerBrowserTest,
+                       DISABLE_ON_ANDROID(WindowClientReady)) {
   std::string expected = "success";
   EXPECT_EQ(expected, content::EvalJs(GetActiveWebContents(), "install()"));
   EXPECT_EQ("app_is_ready",