Disable PPAPINaClGLibcTest.Graphics2D_FlushOffscreenUpdate on Windows

chrome/test/ppapi/ppapi_browsertest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/test/ppapi/ppapi_test.h"
 
 #include "base/test/test_timeouts.h"
 #include "build/build_config.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 258 matching lines @@
   RunTest("Instance_SetupExecuteScriptAtInstanceShutdown");
   RunTest("Instance_ExecuteScriptAtInstanceShutdown");
 }
 IN_PROC_BROWSER_TEST_F(OutOfProcessPPAPITest,
                        Instance_ExecuteScriptAtInstanceShutdown) {
   // (See the comment for the in-process version of this test above)
   RunTest("Instance_SetupExecuteScriptAtInstanceShutdown");
   RunTest("Instance_ExecuteScriptAtInstanceShutdown");
 }
 
+#if defined(OS_WIN)
+// Flaky on Win7. http://crbug.com/320548
+#define MAYBE_Graphics2D_FlushOffscreenUpdate \
+    DISABLED_Graphics2D_FlushOffscreenUpdate
+#else
+#define MAYBE_Graphics2D_FlushOffscreenUpdate Graphics2D_FlushOffscreenUpdate
+#endif
+
 TEST_PPAPI_IN_PROCESS(Graphics2D)
 TEST_PPAPI_OUT_OF_PROCESS(Graphics2D)
 // Graphics2D_Dev isn't supported in NaCl, only test the other interfaces
 // TODO(jhorwich) Enable when Graphics2D_Dev interfaces are proxied in NaCl.
 TEST_PPAPI_NACL(Graphics2D_InvalidResource)
 TEST_PPAPI_NACL(Graphics2D_InvalidSize)
 TEST_PPAPI_NACL(Graphics2D_Humongous)
 TEST_PPAPI_NACL(Graphics2D_InitToZero)
 TEST_PPAPI_NACL(Graphics2D_Describe)
 TEST_PPAPI_NACL(Graphics2D_Paint)
 TEST_PPAPI_NACL(Graphics2D_Scroll)
 TEST_PPAPI_NACL(Graphics2D_Replace)
 TEST_PPAPI_NACL(Graphics2D_Flush)
-TEST_PPAPI_NACL(Graphics2D_FlushOffscreenUpdate)
+TEST_PPAPI_NACL(MAYBE_Graphics2D_FlushOffscreenUpdate)
 TEST_PPAPI_NACL(Graphics2D_BindNull)
 
 #if defined(OS_WIN)
 #if defined(USE_AURA)
 // These tests fail with the test compositor which is what's used by default for
 // browser tests on Windows Aura. Renable when the software compositor is
 // available.
 #define MAYBE_IN_Graphics3D DISABLED_Graphics3D
 #define MAYBE_OUT_Graphics3D DISABLED_Graphics3D
 #define MAYBE_NACL_Graphics3D DISABLED_Graphics3D
@@ skipping 1314 matching lines @@
           LIST_TEST(FlashDRM_GetHmonitor)
           LIST_TEST(FlashDRM_GetVoucherFile));
 }
 
 TEST_PPAPI_IN_PROCESS(TalkPrivate)
 TEST_PPAPI_OUT_OF_PROCESS(TalkPrivate)
 
 #if defined(OS_CHROMEOS)
 TEST_PPAPI_OUT_OF_PROCESS(OutputProtectionPrivate)
 #endif