[Pepper] Disable NewlibPackagedAppTest.SuccessfulLoad in dbg bots

chrome/test/ppapi/ppapi_browsertest.cc

Index: chrome/test/ppapi/ppapi_browsertest.cc
diff --git a/chrome/test/ppapi/ppapi_browsertest.cc b/chrome/test/ppapi/ppapi_browsertest.cc
index 80530a4b9c298517d1c28ebc1705558b2b7bc556..bcf0a4a6f72c445d3730ad8db7ab06847eac2e50 100644
--- a/chrome/test/ppapi/ppapi_browsertest.cc
+++ b/chrome/test/ppapi/ppapi_browsertest.cc
@@ -1303,8 +1303,9 @@ class NonSfiPackagedAppTest : public PackagedAppTest {
 
 // Load a packaged app, and wait for it to successfully post a "hello" message
 // back.
-#if defined(OS_WIN)
+#if defined(OS_WIN) || !defined(NDEBUG)
 // flaky: crbug.com/707068
+// flaky on debug builds: crbug.com/709447
 IN_PROC_BROWSER_TEST_F(NewlibPackagedAppTest, DISABLED_SuccessfulLoad) {
 #else
 IN_PROC_BROWSER_TEST_F(NewlibPackagedAppTest,