Add UMA for the new generic permisison class

chrome/browser/content_settings/permission_context_base.cc

 // Copyright 2014 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/permission_context_base.h"
 
 #include "base/logging.h"
+#include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
 #include "chrome/browser/content_settings/permission_bubble_request_impl.h"
 #include "chrome/browser/content_settings/permission_queue_controller.h"
 #include "chrome/browser/content_settings/permission_request_id.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/web_contents.h"
 #include "grit/generated_resources.h"
 #include "grit/theme_resources.h"
 
+namespace {
+
+// Helper function for UMA tracking purposes.
+PermissionType SettingToPermission(ContentSettingsType permission) {
+  switch (permission) {
+    case CONTENT_SETTINGS_TYPE_MIDI_SYSEX:
+      return PERMISSION_MIDI_SYSEX;
+    case CONTENT_SETTINGS_TYPE_PUSH_MESSAGING:
+      return PERMISSION_PUSH_MESSAGING;
+    default:
+      NOTREACHED() << "PERMISSION " << permission << " not accounted for";
+  }
+  return PERMISSION_UNKNOWN;
+}
+
+} // namespace
 
 PermissionContextBase::PermissionContextBase(
     Profile* profile,
     const ContentSettingsType permission_type)
     : profile_(profile),
       permission_type_(permission_type),
       weak_factory_(this) {
   permission_queue_controller_.reset(
       new PermissionQueueController(profile_, permission_type_));
 }
 
 PermissionContextBase::~PermissionContextBase() {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 }
 
 void PermissionContextBase::RequestPermission(
     content::WebContents* web_contents,
     const PermissionRequestID& id,
     const GURL& requesting_frame,
     bool user_gesture,
     const BrowserPermissionCallback& callback) {
-  // TODO(miguelg): Add UMA instrumentation.
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   DecidePermission(web_contents,
                    id,
                    requesting_frame.GetOrigin(),
                    web_contents->GetLastCommittedURL().GetOrigin(),
                    user_gesture,
                    callback);
 }
 
 void PermissionContextBase::DecidePermission(
     content::WebContents* web_contents,
     const PermissionRequestID& id,
     const GURL& requesting_origin,
     const GURL& embedder_origin,
     bool user_gesture,
     const BrowserPermissionCallback& callback) {
   DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
 
   ContentSetting content_setting =
       profile_->GetHostContentSettingsMap()->GetContentSetting(
           requesting_origin, embedder_origin, permission_type_, std::string());
   switch (content_setting) {
     case CONTENT_SETTING_BLOCK:
-      PermissionDecided(
-          id, requesting_origin, embedder_origin, callback, false);
+      NotifyPermissionSet(id, requesting_origin, embedder_origin,
+                           callback, false /* persist */, false /* granted */);
       return;
     case CONTENT_SETTING_ALLOW:
-      PermissionDecided(id, requesting_origin, embedder_origin, callback, true);
+      NotifyPermissionSet(id, requesting_origin, embedder_origin,
+                           callback, false /* persist */, true /* granted */);
       return;
     default:
       break;
   }
 
+  UMA_HISTOGRAM_ENUMERATION("ContentSettings.PermissionRequested",
+                            SettingToPermission(permission_type_),
+                            PERMISSION_NUM);
+
   if (PermissionBubbleManager::Enabled()) {
     PermissionBubbleManager* bubble_manager =
         PermissionBubbleManager::FromWebContents(web_contents);
     DCHECK(bubble_manager);
     scoped_ptr<PermissionBubbleRequest> request_ptr(
         new PermissionBubbleRequestImpl(
             requesting_origin,
             user_gesture,
             permission_type_,
             profile_->GetPrefs()->GetString(prefs::kAcceptLanguages),
-            base::Bind(&PermissionContextBase::NotifyPermissionSet,
+            base::Bind(&PermissionContextBase::PermissionDecided,
                        weak_factory_.GetWeakPtr(),
                        id,
                        requesting_origin,
                        embedder_origin,
                        callback),
             base::Bind(&PermissionContextBase::CleanUpBubble,
                        weak_factory_.GetWeakPtr(), id)));
     PermissionBubbleRequest* request = request_ptr.get();
 
     bool inserted = pending_bubbles_.add(
         id.ToString(), request_ptr.Pass()).second;
     DCHECK(inserted) << "Duplicate id " << id.ToString();
     bubble_manager->AddRequest(request);
     return;
   }
 
   // TODO(gbillock): Delete this and the infobar delegate when
   // we're using only bubbles. crbug.com/337458
   GetQueueController()->CreateInfoBarRequest(
       id,
       requesting_origin,
       embedder_origin,
       std::string(),
-      base::Bind(&PermissionContextBase::NotifyPermissionSet,
+      base::Bind(&PermissionContextBase::PermissionDecided,
                  weak_factory_.GetWeakPtr(),
                  id,
                  requesting_origin,
                  embedder_origin,
                  callback,
                  // the queue controller takes care of persisting the
                  // permission
                  false));
 }
 
 void PermissionContextBase::PermissionDecided(
     const PermissionRequestID& id,
     const GURL& requesting_origin,
     const GURL& embedder_origin,
     const BrowserPermissionCallback& callback,
+    bool persist,
     bool allowed) {
-  DCHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
+  if (allowed) {
+    UMA_HISTOGRAM_ENUMERATION("ContentSettings.PermissionGranted",
+                              SettingToPermission(permission_type_),
+                              PERMISSION_NUM);
+  } else {
+    UMA_HISTOGRAM_ENUMERATION("ContentSettings.PermissionDenied",
+                              SettingToPermission(permission_type_),
+                              PERMISSION_NUM);
+  }
+
   NotifyPermissionSet(
-      id, requesting_origin, embedder_origin, callback, false, allowed);
+      id, requesting_origin, embedder_origin, callback, persist, allowed);
 }
 
 PermissionQueueController* PermissionContextBase::GetQueueController() {
   return permission_queue_controller_.get();
 }
 
 void PermissionContextBase::NotifyPermissionSet(
     const PermissionRequestID& id,
     const GURL& requesting_origin,
     const GURL& embedder_origin,
@@ skipping 21 matching lines @@
   DCHECK_EQ(embedder_origin, embedder_origin.GetOrigin());
   ContentSetting content_setting =
       allowed ? CONTENT_SETTING_ALLOW : CONTENT_SETTING_BLOCK;
   profile_->GetHostContentSettingsMap()->SetContentSetting(
       ContentSettingsPattern::FromURLNoWildcard(requesting_origin),
       ContentSettingsPattern::FromURLNoWildcard(embedder_origin),
       permission_type_,
       std::string(),
       content_setting);
 }