Make UMA_HISTOGRAM_ENUMERATION work with scoped enums.

chrome/browser/extensions/installed_loader.cc

Index: chrome/browser/extensions/installed_loader.cc
diff --git a/chrome/browser/extensions/installed_loader.cc b/chrome/browser/extensions/installed_loader.cc
index 85ce9632c137ab648b01bcbd1ed6236fa32b7bc5..46c9b6570cef100900fbc037f84bad849699e206 100644
--- a/chrome/browser/extensions/installed_loader.cc
+++ b/chrome/browser/extensions/installed_loader.cc
@@ -132,8 +132,8 @@ void RecordCreationFlags(const Extension* extension) {
   for (int i = 0; i < Extension::kInitFromValueFlagBits; ++i) {
     int flag = 1 << i;
     if (extension->creation_flags() & flag) {
-      UMA_HISTOGRAM_ENUMERATION(
-          "Extensions.LoadCreationFlags", i, Extension::kInitFromValueFlagBits);
+      UMA_HISTOGRAM_EXACT_LINEAR("Extensions.LoadCreationFlags", i,
+                                 Extension::kInitFromValueFlagBits);
     }
   }
 }