Componentize renderer side of DNS prefetching.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index bd99fa21ef3c0521747655578e39c4a616f8bc52..e8bc6a0aaa60022d08f856faf54b27a09155b872 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -37,7 +37,6 @@
 #include "chrome/renderer/media/chrome_key_systems.h"
 #include "chrome/renderer/net/net_error_helper.h"
 #include "chrome/renderer/net/prescient_networking_dispatcher.h"
-#include "chrome/renderer/net/renderer_net_predictor.h"
 #include "chrome/renderer/net_benchmarking_extension.h"
 #include "chrome/renderer/page_load_histograms.h"
 #include "chrome/renderer/pepper/pepper_helper.h"
@@ -63,6 +62,7 @@
 #include "components/autofill/content/renderer/password_autofill_agent.h"
 #include "components/autofill/content/renderer/password_generation_agent.h"
 #include "components/content_settings/core/common/content_settings_pattern.h"
+#include "components/dns_prefetch/renderer/renderer_net_predictor.h"
 #include "components/dom_distiller/core/url_constants.h"
 #include "components/nacl/renderer/ppb_nacl_private_impl.h"
 #include "components/password_manager/content/renderer/credential_manager_client.h"
@@ -310,7 +310,7 @@ void ChromeContentRendererClient::RenderThreadStarted() {
 #endif
 
   prescient_networking_dispatcher_.reset(new PrescientNetworkingDispatcher());
-  net_predictor_.reset(new RendererNetPredictor());
+  net_predictor_.reset(new dns_prefetch::RendererNetPredictor());
 #if defined(ENABLE_SPELLCHECK)
   // ChromeRenderViewTest::SetUp() creates a Spellcheck and injects it using
   // SetSpellcheck(). Don't overwrite it.