Record extension function call histograms for synchronous functions too.

extensions/browser/extension_function.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "extensions/browser/extension_function.h"
 
 #include "base/logging.h"
-#include "base/metrics/sparse_histogram.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_frame_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "extensions/browser/extension_function_dispatcher.h"
 #include "extensions/browser/extension_message_filter.h"
 #include "extensions/common/extension_api.h"
 #include "extensions/common/extension_messages.h"
@@ skipping 100 matching lines @@
 
 const std::string ExtensionFunction::GetError() {
   return error_;
 }
 
 void ExtensionFunction::SetError(const std::string& error) {
   error_ = error;
 }
 
 void ExtensionFunction::Run() {
-  UMA_HISTOGRAM_SPARSE_SLOWLY("Extensions.FunctionCalls", histogram_value());
-
   if (!RunImpl())
     SendResponse(false);
 }
 
 bool ExtensionFunction::ShouldSkipQuotaLimiting() const {
   return false;
 }
 
 bool ExtensionFunction::HasOptionalArgument(size_t index) {
   base::Value* value;
@@ skipping 120 matching lines @@
 
 SyncIOThreadExtensionFunction::SyncIOThreadExtensionFunction() {
 }
 
 SyncIOThreadExtensionFunction::~SyncIOThreadExtensionFunction() {
 }
 
 void SyncIOThreadExtensionFunction::Run() {
   SendResponse(RunImpl());
 }