Make UMA_HISTOGRAM_ENUMERATION work with scoped enums.

chrome/browser/ui/page_info/page_info.cc

Index: chrome/browser/ui/page_info/page_info.cc
diff --git a/chrome/browser/ui/page_info/page_info.cc b/chrome/browser/ui/page_info/page_info.cc
index 0d5c53970a9e34c5b7c989ca774222a0a234287a..63002bac6fb22c26dad497eca9ccf8b68dac2b46 100644
--- a/chrome/browser/ui/page_info/page_info.cc
+++ b/chrome/browser/ui/page_info/page_info.cc
@@ -315,11 +315,11 @@ void PageInfo::OnSitePermissionChanged(ContentSettingsType type,
   // the Page Info UI.
   size_t num_values;
   int histogram_value = ContentSettingTypeToHistogramValue(type, &num_values);
-  UMA_HISTOGRAM_ENUMERATION("WebsiteSettings.OriginInfo.PermissionChanged",
-                            histogram_value, num_values);
+  UMA_HISTOGRAM_EXACT_LINEAR("WebsiteSettings.OriginInfo.PermissionChanged",
+                             histogram_value, num_values);
 
   if (setting == ContentSetting::CONTENT_SETTING_ALLOW) {
-    UMA_HISTOGRAM_ENUMERATION(
+    UMA_HISTOGRAM_EXACT_LINEAR(
         "WebsiteSettings.OriginInfo.PermissionChanged.Allowed", histogram_value,
         num_values);
 
@@ -329,7 +329,7 @@ void PageInfo::OnSitePermissionChanged(ContentSettingsType type,
           "ContentSettings.Plugins.AddedAllowException", site_url_);
     }
   } else if (setting == ContentSetting::CONTENT_SETTING_BLOCK) {
-    UMA_HISTOGRAM_ENUMERATION(
+    UMA_HISTOGRAM_EXACT_LINEAR(
         "WebsiteSettings.OriginInfo.PermissionChanged.Blocked", histogram_value,
         num_values);
   }