Replace c/b/nss_context by a KeyedService.

chrome/browser/chromeos/platform_keys/platform_keys_nss.cc

Index: chrome/browser/chromeos/platform_keys/platform_keys_nss.cc
diff --git a/chrome/browser/chromeos/platform_keys/platform_keys_nss.cc b/chrome/browser/chromeos/platform_keys/platform_keys_nss.cc
index 2265f42b5e3465b69623c406c14796a177ad68e3..f57848f97c54ee8fe9efa8208a1c5fd1530ef9b8 100644
--- a/chrome/browser/chromeos/platform_keys/platform_keys_nss.cc
+++ b/chrome/browser/chromeos/platform_keys/platform_keys_nss.cc
@@ -17,7 +17,9 @@
 #include "base/thread_task_runner_handle.h"
 #include "base/threading/worker_pool.h"
 #include "chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.h"
-#include "chrome/browser/net/nss_context.h"
+#include "chrome/browser/net/cert_database_service_factory.h"
+#include "components/cert_database/public/cert_database_service.h"
+#include "components/cert_database/public/cert_database_service_io_part.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "crypto/rsa_private_key.h"
@@ -106,13 +108,19 @@ void DidGetCertDBOnIOThread(const std::string& token_id,
 // Retrieves the NSSCertDatabase from |context| and, if |token_id| is not empty,
 // the slot for |token_id|.
 // Must be called on the IO thread.
-void GetCertDatabaseOnIOThread(const std::string& token_id,
-                               const GetCertDBCallback& callback,
-                               content::ResourceContext* context,
-                               NSSOperationState* state) {
+void GetCertDatabaseOnIOThread(
+    const std::string& token_id,
+    const GetCertDBCallback& callback,
+    base::WeakPtr<CertDatabaseServiceIOPart> db_io_part,
+    NSSOperationState* state) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-  net::NSSCertDatabase* cert_db = GetNSSCertDatabaseForResourceContext(
-      context, base::Bind(&DidGetCertDBOnIOThread, token_id, callback, state));
+  if (!db_io_part) {
+    LOG(ERROR) << "CertDatabase shutdown.";
+    state->OnError(FROM_HERE, kErrorInternal);
+    return;
+  }
+  net::NSSCertDatabase* cert_db = db_io_part->GetNSSCertDatabase(
+      base::Bind(&DidGetCertDBOnIOThread, token_id, callback, state));
 
   if (cert_db)
     DidGetCertDBOnIOThread(token_id, callback, state, cert_db);
@@ -125,12 +133,14 @@ void GetCertDatabase(const std::string& token_id,
                      const GetCertDBCallback& callback,
                      BrowserContext* browser_context,
                      NSSOperationState* state) {
+  CertDatabaseService* cert_db_service =
+      CertDatabaseServiceFactory::GetForBrowserContext(browser_context);
   BrowserThread::PostTask(BrowserThread::IO,
                           FROM_HERE,
                           base::Bind(&GetCertDatabaseOnIOThread,
                                      token_id,
                                      callback,
-                                     browser_context->GetResourceContext(),
+                                     cert_db_service->GetIOPart(),
                                      state));
 }