Set minimum Windows wait time to 1 ms in MessagePumpDefault::Run

base/message_loop/message_pump_default.cc

Index: base/message_loop/message_pump_default.cc
diff --git a/base/message_loop/message_pump_default.cc b/base/message_loop/message_pump_default.cc
index bb9d8ce9ffc657e53d3104049fcd951cb4406321..62efa4e22bdf8109d1b6e2f0060c097f02104d5b 100644
--- a/base/message_loop/message_pump_default.cc
+++ b/base/message_loop/message_pump_default.cc
@@ -52,8 +52,15 @@ void MessagePumpDefault::Run(Delegate* delegate) {
       event_.Wait();
     } else {
       TimeDelta delay = delayed_work_time_ - TimeTicks::Now();
-      // If the delay is under 1 ms we need to execute the task right away.
-      if (delay.InMilliseconds() >= 1) {
+#if defined(OS_WIN)
+      // If the delay is greater than zero and under 1 ms we need to round up to
+      // 1 ms or else we will end up spinning until it counts down to zero
+      // because sub-ms waits aren't supported on Windows.
+      if (delay > TimeDelta()) {

[cpu_(ooo_6.6-7.5), 2015/05/22 22:57:54]

don't use the braces in single if() statement

lgtm

+        delay = std::max(delay, TimeDelta::FromMilliseconds(1));
+      }
+#endif
+      if (delay > TimeDelta()) {
         event_.TimedWait(delay);
       } else {
         // It looks like delayed_work_time_ indicates a time in the past, so we