Revert of Convert network hints to Mojo

chrome/browser/renderer_host/chrome_render_message_filter.cc

Index: chrome/browser/renderer_host/chrome_render_message_filter.cc
diff --git a/chrome/browser/renderer_host/chrome_render_message_filter.cc b/chrome/browser/renderer_host/chrome_render_message_filter.cc
index d8952d9ac7e514fb4b3038b689748338757b557c..1a48364b54c7839d39063d124d3d35240d9f2a58 100644
--- a/chrome/browser/renderer_host/chrome_render_message_filter.cc
+++ b/chrome/browser/renderer_host/chrome_render_message_filter.cc
@@ -25,6 +25,7 @@
 #include "components/content_settings/content/common/content_settings_messages.h"
 #include "components/content_settings/core/browser/cookie_settings.h"
 #include "components/network_hints/common/network_hints_common.h"
+#include "components/network_hints/common/network_hints_messages.h"
 #include "components/rappor/rappor_service.h"
 #include "components/rappor/rappor_utils.h"
 #include "components/web_cache/browser/web_cache_manager.h"
@@ -41,8 +42,9 @@
 
 namespace {
 
-const uint32_t kFilteredMessageClasses[] = {ChromeMsgStart,
-                                            ContentSettingsMsgStart};
+const uint32_t kFilteredMessageClasses[] = {
+    ChromeMsgStart, ContentSettingsMsgStart, NetworkHintsMsgStart,
+};
 
 }  // namespace
 
@@ -62,6 +64,8 @@
 bool ChromeRenderMessageFilter::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ChromeRenderMessageFilter, message)
+    IPC_MESSAGE_HANDLER(NetworkHintsMsg_DNSPrefetch, OnDnsPrefetch)
+    IPC_MESSAGE_HANDLER(NetworkHintsMsg_Preconnect, OnPreconnect)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_UpdatedCacheStats,
                         OnUpdatedCacheStats)
     IPC_MESSAGE_HANDLER(ChromeViewHostMsg_AllowDatabase, OnAllowDatabase)
@@ -102,17 +106,17 @@
   }
 }
 
-void ChromeRenderMessageFilter::DNSPrefetch(
+void ChromeRenderMessageFilter::OnDnsPrefetch(
     const network_hints::LookupRequest& request) {
   if (predictor_)
     predictor_->DnsPrefetchList(request.hostname_list);
 }
 
-void ChromeRenderMessageFilter::Preconnect(const GURL& url,
-                                           bool allow_credentials,
-                                           int count) {
+void ChromeRenderMessageFilter::OnPreconnect(const GURL& url,
+                                             bool allow_credentials,
+                                             int count) {
   if (count < 1) {
-    LOG(WARNING) << "NetworkHints::Preconnect IPC with invalid count: "
+    LOG(WARNING) << "NetworkHintsMsg_Preconnect IPC with invalid count: "
                  << count;
     return;
   }
@@ -122,11 +126,6 @@
                               chrome_browser_net::UrlInfo::EARLY_LOAD_MOTIVATED,
                               allow_credentials, count);
   }
-}
-
-void ChromeRenderMessageFilter::BindNetworkHints(
-    network_hints::mojom::NetworkHintsRequest request) {
-  bindings_.AddBinding(this, std::move(request));
 }
 
 void ChromeRenderMessageFilter::OnUpdatedCacheStats(