components: Move user_prefs into user_prefs namespace.

components/autofill/browser/autofill_download.cc

Index: components/autofill/browser/autofill_download.cc
diff --git a/components/autofill/browser/autofill_download.cc b/components/autofill/browser/autofill_download.cc
index 409d586a8c9f30e02e814c6bfc043763584a9a77..cbb84e2481d5a0047d5f04b3b15b8363acff8298 100644
--- a/components/autofill/browser/autofill_download.cc
+++ b/components/autofill/browser/autofill_download.cc
@@ -80,7 +80,7 @@ AutofillDownloadManager::AutofillDownloadManager(BrowserContext* context,
       negative_upload_rate_(0),
       fetcher_id_for_unittest_(0) {
   DCHECK(observer_);
-  PrefService* preferences = components::UserPrefs::Get(browser_context_);
+  PrefService* preferences = user_prefs::UserPrefs::Get(browser_context_);
   positive_upload_rate_ =
       preferences->GetDouble(prefs::kAutofillPositiveUploadRate);
   negative_upload_rate_ =
@@ -170,7 +170,7 @@ void AutofillDownloadManager::SetPositiveUploadRate(double rate) {
   positive_upload_rate_ = rate;
   DCHECK_GE(rate, 0.0);
   DCHECK_LE(rate, 1.0);
-  PrefService* preferences = components::UserPrefs::Get(browser_context_);
+  PrefService* preferences = user_prefs::UserPrefs::Get(browser_context_);
   preferences->SetDouble(prefs::kAutofillPositiveUploadRate, rate);
 }
 
@@ -180,7 +180,7 @@ void AutofillDownloadManager::SetNegativeUploadRate(double rate) {
   negative_upload_rate_ = rate;
   DCHECK_GE(rate, 0.0);
   DCHECK_LE(rate, 1.0);
-  PrefService* preferences = components::UserPrefs::Get(browser_context_);
+  PrefService* preferences = user_prefs::UserPrefs::Get(browser_context_);
   preferences->SetDouble(prefs::kAutofillNegativeUploadRate, rate);
 }