Disable all the tests that are flaking more than 5% on Windows builders.

mojo/system/message_pipe_dispatcher_unittest.cc

 // Copyright 2013 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.
 
 // NOTE(vtl): Some of these tests are inherently flaky (e.g., if run on a
 // heavily-loaded system). Sorry. |test::EpsilonTimeout()| may be increased to
 // increase tolerance and reduce observed flakiness (though doing so reduces the
 // meaningfulness of the test).
 
 #include "mojo/system/message_pipe_dispatcher.h"
@@ skipping 240 matching lines @@
     buffer[0] = 345678901;
     EXPECT_EQ(MOJO_RESULT_FAILED_PRECONDITION,
               d0->WriteMessage(buffer, kBufferSize,
                                NULL,
                                MOJO_WRITE_MESSAGE_FLAG_NONE));
 
     EXPECT_EQ(MOJO_RESULT_OK, d0->Close());
   }
 }
 
-TEST(MessagePipeDispatcherTest, BasicThreaded) {
+#if defined(OS_WIN)
+// http://crbug.com/396386
+#define MAYBE_BasicThreaded DISABLED_BasicThreaded
+#else
+#define MAYBE_BasicThreaded BasicThreaded
+#endif
+TEST(MessagePipeDispatcherTest, MAYBE_BasicThreaded) {
   test::Stopwatch stopwatch;
   int32_t buffer[1];
   const uint32_t kBufferSize = static_cast<uint32_t>(sizeof(buffer));
   uint32_t buffer_size;
   base::TimeDelta elapsed;
   bool did_wait;
   MojoResult result;
   uint32_t context;
 
   // Run this test both with |d0| as port 0, |d1| as port 1 and vice versa.
@@ skipping 317 matching lines @@
   EXPECT_EQ(total_messages_written, total_messages_read);
   EXPECT_EQ(total_bytes_written, total_bytes_read);
 
   EXPECT_EQ(MOJO_RESULT_OK, d_write->Close());
   EXPECT_EQ(MOJO_RESULT_OK, d_read->Close());
 }
 
 }  // namespace
 }  // namespace system
 }  // namespace mojo