Componentize renderer side of DNS prefetching.

components/dns_prefetch/renderer/predictor_queue.cc

Index: components/dns_prefetch/renderer/predictor_queue.cc
diff --git a/chrome/renderer/net/predictor_queue.cc b/components/dns_prefetch/renderer/predictor_queue.cc
similarity index 97%
rename from chrome/renderer/net/predictor_queue.cc
rename to components/dns_prefetch/renderer/predictor_queue.cc
index 35023efb4cbb2f63d8d89cc6891a2f188a1f9c78..16911081d761fce841c4ac44567c37f94d850ed0 100644
--- a/chrome/renderer/net/predictor_queue.cc
+++ b/components/dns_prefetch/renderer/predictor_queue.cc
@@ -4,11 +4,13 @@
 
 // See header file for description of DnsQueue class
 
-#include "chrome/renderer/net/predictor_queue.h"
+#include "components/dns_prefetch/renderer/predictor_queue.h"
 
 #include "base/logging.h"
 #include "base/metrics/stats_counters.h"
 
+namespace dns_prefetch {
+
 DnsQueue::DnsQueue(BufferSize size)
     : buffer_(new char[size + 2]),
       buffer_size_(size + 1),
@@ -150,3 +152,5 @@ bool DnsQueue::Validate() {
           '\0' == buffer_[buffer_sentinel_] &&
           ((0 == size_) == (readable_ == writeable_));
 }
+
+}  // namespace dns_prefetch