Add accessibility stats counter

content/browser/renderer_host/render_widget_host.cc

 // Copyright (c) 2011 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 "content/browser/renderer_host/render_widget_host.h"
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/i18n/rtl.h"
 #include "base/message_loop.h"
 #include "base/metrics/histogram.h"
+#include "base/metrics/stats_counters.h"
 #include "base/utf_string_conversions.h"
 #include "content/browser/accessibility/browser_accessibility_state.h"
 #include "content/browser/gpu/gpu_process_host.h"
 #include "content/browser/renderer_host/backing_store.h"
 #include "content/browser/renderer_host/backing_store_manager.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_widget_helper.h"
 #include "content/browser/renderer_host/render_widget_host_view.h"
 #include "content/browser/user_metrics.h"
 #include "content/common/content_switches.h"
@@ skipping 1204 matching lines @@
 
 void RenderWidgetHost::EnableRendererAccessibility() {
   if (renderer_accessible_)
     return;
 
   if (CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kDisableRendererAccessibility)) {
     return;
   }
 
+  SIMPLE_STATS_COUNTER("Accessibility.SessionCount");
   renderer_accessible_ = true;
 
   if (process_->HasConnection()) {
     // Renderer accessibility wasn't enabled on process launch. Enable it now.
     Send(new ViewMsg_EnableAccessibility(routing_id()));
   }
 }
 
 void RenderWidgetHost::ProcessKeyboardEventAck(int type, bool processed) {
   if (key_queue_.empty()) {
@@ skipping 120 matching lines @@
 
 void RenderWidgetHost::Delete() {
   Send(new ViewMsg_Delete(routing_id()));
   UserMetrics::RecordAction(UserMetricsAction("DeleteSelection"));
 }
 
 void RenderWidgetHost::SelectAll() {
   Send(new ViewMsg_SelectAll(routing_id()));
   UserMetrics::RecordAction(UserMetricsAction("SelectAll"));
 }
-