Mark OutOfProcessPPAPITest.Instance unit test as DISABLED.

chrome/test/ui/ppapi_uitest.cc

 // Copyright (c) 2011 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 "base/file_util.h"
 #include "base/path_service.h"
 #include "base/test/test_timeouts.h"
 #include "build/build_config.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/test/automation/tab_proxy.h"
@@ skipping 141 matching lines @@
 TEST_PPAPI_IN_PROCESS(Broker)
 TEST_PPAPI_OUT_OF_PROCESS(Broker)
 
 TEST_PPAPI_IN_PROCESS(Core)
 TEST_PPAPI_OUT_OF_PROCESS(Core)
 
 TEST_PPAPI_IN_PROCESS(CursorControl)
 TEST_PPAPI_OUT_OF_PROCESS(CursorControl)
 
 TEST_PPAPI_IN_PROCESS(Instance)
-TEST_PPAPI_OUT_OF_PROCESS(Instance)
+// http://crbug.com/91729
+TEST_PPAPI_OUT_OF_PROCESS(DISABLED_Instance)
 
 TEST_PPAPI_IN_PROCESS(Graphics2D)
 // Disabled because it times out: http://crbug.com/89961
 //TEST_PPAPI_OUT_OF_PROCESS(Graphics2D)
 
 TEST_PPAPI_IN_PROCESS(ImageData)
 TEST_PPAPI_OUT_OF_PROCESS(ImageData)
 
 TEST_PPAPI_IN_PROCESS(Buffer)
 TEST_PPAPI_OUT_OF_PROCESS(Buffer)
@@ skipping 87 matching lines @@
 TEST_F(OutOfProcessPPAPITest, FAILS_Transport) {
   RunTestViaHTTP("Transport");
 }
 #endif // ENABLE_P2P_APIS
 
 TEST_PPAPI_IN_PROCESS(UMA)
 // There is no proxy.
 TEST_F(OutOfProcessPPAPITest, FAILS_UMA) {
   RunTest("UMA");
 }