Remove Windows support from the EDK.

mojo/edk/system/test_utils.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.
 
 #include "mojo/edk/system/test_utils.h"
 
 #include <stdint.h>
 #include <stdlib.h>
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/test/test_timeouts.h"
 #include "base/threading/platform_thread.h"  // For |Sleep()|.
 #include "build/build_config.h"
 
 namespace mojo {
 namespace system {
 namespace test {
 
 MojoDeadline DeadlineFromMilliseconds(unsigned milliseconds) {
   return static_cast<MojoDeadline>(milliseconds) * 1000;
 }
 
 MojoDeadline EpsilonDeadline() {
-// Originally, our epsilon timeout was 10 ms, which was mostly fine but flaky on
-// some Windows bots. I don't recall ever seeing flakes on other bots. At 30 ms
-// tests seem reliable on Windows bots, but not at 25 ms. We'd like this timeout
-// to be as small as possible (see the description in the .h file).
-//
 // Currently, |tiny_timeout()| is usually 100 ms (possibly scaled under ASAN,
-// etc.). Based on this, set it to (usually be) 30 ms on Windows and 20 ms
-// elsewhere.
-#if defined(OS_WIN) || defined(OS_ANDROID)
+// etc.). Based on this, set it to (usually be) 30 ms on Android and 20 ms
+// elsewhere. (We'd like this to be as small as possible, without making things
+// flaky)
+#if defined(OS_ANDROID)
   return (TinyDeadline() * 3) / 10;
 #else
   return (TinyDeadline() * 2) / 10;
 #endif
 }
 
 MojoDeadline TinyDeadline() {
   return static_cast<MojoDeadline>(
       TestTimeouts::tiny_timeout().InMicroseconds());
 }
@@ skipping 40 matching lines @@
 MojoDeadline Stopwatch::Elapsed() {
   int64_t result = platform_support_.GetTimeTicksNow() - start_time_;
   // |DCHECK_GE|, not |CHECK_GE|, since this may be performance-important.
   DCHECK_GE(result, 0);
   return static_cast<MojoDeadline>(result);
 }
 
 }  // namespace test
 }  // namespace system
 }  // namespace mojo