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 9f99262d1107d5279a117484abf56333be0263a1..5beaa2571fbe97967167593a39ef66c0a825dde4 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -38,7 +38,6 @@
 #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"
@@ -308,7 +308,7 @@ 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.