Add enableReferrers and enableHyperlinkAuditing to contentSettings.misc API.

chrome/browser/prefs/pref_member.cc

Index: chrome/browser/prefs/pref_member.cc
diff --git a/chrome/browser/prefs/pref_member.cc b/chrome/browser/prefs/pref_member.cc
index 405aab63d850747d491fdfc6d5cc779a1373195c..52067e972fbe12ffea543659ec2f5544532faa46 100644
--- a/chrome/browser/prefs/pref_member.cc
+++ b/chrome/browser/prefs/pref_member.cc
@@ -7,6 +7,7 @@
 #include "base/logging.h"
 #include "base/value_conversions.h"
 #include "chrome/browser/prefs/pref_service.h"
+#include "content/common/notification_source.h"
 #include "content/common/notification_type.h"
 
 namespace subtle {
@@ -18,8 +19,7 @@ PrefMemberBase::PrefMemberBase()
 }
 
 PrefMemberBase::~PrefMemberBase() {
-  if (prefs_ && !pref_name_.empty())
-    prefs_->RemovePrefObserver(pref_name_.c_str(), this);
+  Destroy();
 }
 
 
@@ -37,8 +37,15 @@ void PrefMemberBase::Init(const char* pref_name, PrefService* prefs,
   prefs_->AddPrefObserver(pref_name, this);
 }
 
+void PrefMemberBase::ObserveProfileDestruction(Profile* profile) {
+  DCHECK(registrar_.IsEmpty());
+  registrar_.Add(this,
+                 NotificationType::PROFILE_DESTROYED,
+                 Source<Profile>(profile));
+}
+
 void PrefMemberBase::Destroy() {
-  if (prefs_) {
+  if (prefs_ && !pref_name_.empty()) {
     prefs_->RemovePrefObserver(pref_name_.c_str(), this);
     prefs_ = NULL;
   }
@@ -55,11 +62,23 @@ void PrefMemberBase::MoveToThread(BrowserThread::ID thread_id) {
 void PrefMemberBase::Observe(NotificationType type,
                              const NotificationSource& source,
                              const NotificationDetails& details) {
-  VerifyValuePrefName();
-  DCHECK(NotificationType::PREF_CHANGED == type);
-  UpdateValueFromPref();
-  if (!setting_value_ && observer_)
-    observer_->Observe(type, source, details);
+  switch (type.value) {
+    case NotificationType::PREF_CHANGED: {
+      VerifyValuePrefName();
+      UpdateValueFromPref();
+      if (!setting_value_ && observer_)
+        observer_->Observe(type, source, details);
+      break;
+    }
+    case NotificationType::PROFILE_DESTROYED: {
+      Destroy();
+      registrar_.RemoveAll();
+      break;
+    }
+    default: {
+      NOTREACHED();
+    }
+  }
 }
 
 void PrefMemberBase::VerifyValuePrefName() const {