Add UMA for the new generic permisison class

chrome/browser/content_settings/content_settings_default_provider.cc

 // Copyright (c) 2012 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 "chrome/browser/content_settings/content_settings_default_provider.h"
 
 #include <string>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 151 matching lines @@
   UMA_HISTOGRAM_ENUMERATION(
       "ContentSettings.DefaultMediaStreamSetting",
       ValueToContentSetting(
           default_settings_[CONTENT_SETTINGS_TYPE_MEDIASTREAM].get()),
       CONTENT_SETTING_NUM_SETTINGS);
   UMA_HISTOGRAM_ENUMERATION(
       "ContentSettings.DefaultMIDISysExSetting",
       ValueToContentSetting(
           default_settings_[CONTENT_SETTINGS_TYPE_MIDI_SYSEX].get()),
       CONTENT_SETTING_NUM_SETTINGS);
-
-  // TODO(miguelg): Add UMA for Push messaging here
+  UMA_HISTOGRAM_ENUMERATION(
+      "ContentSettings.DefaultPushMessagingSetting",
+      ValueToContentSetting(
+          default_settings_[CONTENT_SETTINGS_TYPE_PUSH_MESSAGING].get()),
+      CONTENT_SETTING_NUM_SETTINGS);
 
   pref_change_registrar_.Init(prefs_);
   PrefChangeRegistrar::NamedChangeCallback callback = base::Bind(
       &DefaultProvider::OnPreferenceChanged, base::Unretained(this));
   pref_change_registrar_.Add(prefs::kDefaultContentSettings, callback);
 }
 
 DefaultProvider::~DefaultProvider() {
 }
 
@@ skipping 152 matching lines @@
   // Migrate obsolete cookie prompt mode.
   if (ValueToContentSetting(
           default_settings_[CONTENT_SETTINGS_TYPE_COOKIES].get()) ==
               CONTENT_SETTING_ASK) {
     default_settings_[CONTENT_SETTINGS_TYPE_COOKIES].reset(
         base::Value::CreateIntegerValue(CONTENT_SETTING_BLOCK));
   }
 }
 
 }  // namespace content_settings