[Sheriff] Disable RenderThreadShutdownTest in debug mode.

content/browser/indexed_db/indexed_db_browsertest.cc

Index: content/browser/indexed_db/indexed_db_browsertest.cc
diff --git a/content/browser/indexed_db/indexed_db_browsertest.cc b/content/browser/indexed_db/indexed_db_browsertest.cc
index e69296eb76f7bb1f41ac818815c6f44445b025d7..236158b4d30040f38a78f5cddb43015811ae198a 100644
--- a/content/browser/indexed_db/indexed_db_browsertest.cc
+++ b/content/browser/indexed_db/indexed_db_browsertest.cc
@@ -607,7 +607,8 @@ class IndexedDBBrowserTestSingleProcess : public IndexedDBBrowserTest {
 };
 
 // Crashing on Android due to kSingleProcess flag: http://crbug.com/342525
-#if defined(OS_ANDROID)
+// Also disabled in debug due to flakiness: http://crbug.com/368134
+#if defined(OS_ANDROID) || !defined(NDEBUG)
 #define MAYBE_RenderThreadShutdownTest DISABLED_RenderThreadShutdownTest
 #else
 #define MAYBE_RenderThreadShutdownTest RenderThreadShutdownTest