Convert uses of int ms to TimeDelta in content/browser, ipc, and webkit/plugins.

ipc/ipc_channel_posix_unittest.cc

Index: ipc/ipc_channel_posix_unittest.cc
diff --git a/ipc/ipc_channel_posix_unittest.cc b/ipc/ipc_channel_posix_unittest.cc
index e8856a911c2fad5f0c9ed04994148b1686606119..48f4bee1bb0e8e6f3f32d2553ea165a2fde2b22e 100644
--- a/ipc/ipc_channel_posix_unittest.cc
+++ b/ipc/ipc_channel_posix_unittest.cc
@@ -177,7 +177,10 @@ void IPCChannelPosixTest::SpinRunLoop(int milliseconds) {
   // in the case of a bad test. Usually, the run loop will quit sooner than
   // that because all tests use a IPCChannelPosixTestListener which quits the
   // current run loop on any channel activity.
-  loop->PostDelayedTask(FROM_HERE, MessageLoop::QuitClosure(), milliseconds);
+  loop->PostDelayedTask(
+      FROM_HERE,
+      MessageLoop::QuitClosure(),
+      base::TimeDelta::FromMilliseconds(milliseconds));
   loop->Run();
 }