Move base/thread.h to base/threading, fix up callers to use the new location.

TEST=it compiles
BUG=none
Review URL: http://codereview.chromium.org/6028009

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@70345 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/remoting/host/simple_host_process.cc b/remoting/host/simple_host_process.cc
index 9fc057c..56ad378b 100644
--- a/remoting/host/simple_host_process.cc
+++ b/remoting/host/simple_host_process.cc
@@ -26,7 +26,7 @@
 #include "base/mac/scoped_nsautorelease_pool.h"
 #include "base/nss_util.h"
 #include "base/path_service.h"
-#include "base/thread.h"
+#include "base/threading/thread.h"
 #include "media/base/media.h"
 #include "remoting/base/tracer.h"
 #include "remoting/host/capturer_fake.h"