DevTools: introduce RecordEnumeratedHistogram method.

chrome/browser/devtools/devtools_ui_bindings.cc

Index: chrome/browser/devtools/devtools_ui_bindings.cc
diff --git a/chrome/browser/devtools/devtools_ui_bindings.cc b/chrome/browser/devtools/devtools_ui_bindings.cc
index 03c3c97ae391af45b3c3c767c4f90f82e9308181..6dd266f1da4cb4fcf0efb5443099714b1e9e2a74 100644
--- a/chrome/browser/devtools/devtools_ui_bindings.cc
+++ b/chrome/browser/devtools/devtools_ui_bindings.cc
@@ -749,6 +749,18 @@ void DevToolsUIBindings::RecordActionUMA(const std::string& name, int action) {
     UMA_HISTOGRAM_ENUMERATION(name, action, kDevToolsPanelShownBoundary);
 }
 
+void DevToolsUIBindings::RecordUMA(const std::string& name,
+                                   int action,
+                                   int bucket_size) {
+  bool valid_name = name == kDevToolsActionTakenHistogram ||
+      name == kDevToolsPanelShownHistogram;
+  if (bucket_size >= 0 && bucket_size < 100 &&
+      action >= 0 && action < bucket_size && valid_name)
+    UMA_HISTOGRAM_ENUMERATION(name, action, bucket_size);

[dgozman, 2015/04/06 10:07:04]

Please wrap in {}

[lushnikov, 2015/04/06 10:10:06]

Done.

+  else
+    frontend_host_->BadMessageRecieved();
+}
+
 void DevToolsUIBindings::SendJsonRequest(const DispatchCallback& callback,
                                          const std::string& browser_id,
                                          const std::string& url) {