Force delegated renderer on Aura

content/browser/browser_plugin/browser_plugin_host_browsertest.cc

Index: content/browser/browser_plugin/browser_plugin_host_browsertest.cc
diff --git a/content/browser/browser_plugin/browser_plugin_host_browsertest.cc b/content/browser/browser_plugin/browser_plugin_host_browsertest.cc
index 7950cb8ae9f9cfb953a3ad7480e9fbe3ba3b4d5d..50de9582fb3b22b79cc36d6448c42729aff49307 100644
--- a/content/browser/browser_plugin/browser_plugin_host_browsertest.cc
+++ b/content/browser/browser_plugin/browser_plugin_host_browsertest.cc
@@ -253,6 +253,9 @@ class BrowserPluginHostTest : public ContentBrowserTest {
 #if defined(OS_WIN) && !defined(USE_AURA)
     UseRealGLBindings();
 #endif
+    // We need real contexts, otherwise the embedder doesn't composite, but the
+    // guest does, and that isn't an expected configuration.
+    UseRealGLContexts();
 
     ContentBrowserTest::SetUp();
   }