Convert ChromeViewHostMsg_UpdatedCacheStats to use mojo.

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 5660e22e33c06e1a74443f9dd1cb6165df0ea80d..51d512598d4fc4c8b3b806d3a7d3904853d4bfb7 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -39,6 +39,7 @@
 #include "chrome/browser/browsing_data/browsing_data_remover.h"
 #include "chrome/browser/browsing_data/browsing_data_remover_factory.h"
 #include "chrome/browser/budget_service/budget_service_impl.h"
+#include "chrome/browser/cache_stats_recorder.h"
 #include "chrome/browser/chrome_content_browser_client_parts.h"
 #include "chrome/browser/chrome_quota_permission_context.h"
 #include "chrome/browser/content_settings/cookie_settings_factory.h"
@@ -2949,6 +2950,9 @@ void ChromeContentBrowserClient::ExposeInterfacesToRenderer(
       base::Bind(&BudgetServiceImpl::Create, render_process_host->GetID()),
       ui_task_runner);
   registry->AddInterface(
+      base::Bind(&CacheStatsRecorder::Create, render_process_host->GetID()),
+      ui_task_runner);
+  registry->AddInterface(
       base::Bind(&FieldTrialRecorder::Create),
       ui_task_runner);
   registry->AddInterface(