Disable flaky test ChromeRenderProcessHostTest.Backgrounding

chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc

Index: chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc
diff --git a/chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc b/chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc
index e300c4e62d2449620a75884ec3b4d44fb7c18c0c..951564ca88083ef79029ee6fd98807293c004d09 100644
--- a/chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc
+++ b/chrome/browser/renderer_host/render_process_host_chrome_browsertest.cc
@@ -266,7 +266,13 @@ IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, ProcessPerTab) {
 // We don't change process priorities on Mac or Posix because the user lacks the
 // permission to raise a process' priority even after lowering it.
 #if defined(OS_WIN) || defined(OS_LINUX)
-IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, Backgrounding) {
+#if defined(OS_WIN)
+// Flaky test: crbug.com/394368
+#define MAYBE_Backgrounding DISABLED_Backgrounding
+#else
+#define MAYBE_Backgrounding Backgrounding
+#endif
+IN_PROC_BROWSER_TEST_F(ChromeRenderProcessHostTest, MAYBE_Backgrounding) {
   if (!base::Process::CanBackgroundProcesses()) {
     LOG(ERROR) << "Can't background processes";
     return;