Protector strings and bubble/SettingsChange code refactoring.

chrome/browser/protector/protector.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 "chrome/browser/protector/protector.h"
 
+#include "base/bind.h"
 #include "base/logging.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/protector/settings_change_global_error.h"
 #include "chrome/browser/protector/keys.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_source.h"
@@ skipping 15 matching lines @@
     LOG(WARNING) << "Don't have browser to show tab in.";
     return;
   }
   error_->browser()->ShowSingletonTab(url);
 }
 
 TemplateURLService* Protector::GetTemplateURLService() {
   return TemplateURLServiceFactory::GetForProfile(profile_);
 }
 
-void Protector::ShowChange(SettingChange* change) {
+void Protector::ShowChange(BaseSettingChange* change) {
   DCHECK(change);
-  SettingChangeVector changes(1, change);
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&Protector::InitAndShowChange,
+                 base::Unretained(this), change));
+}
 
-  error_.reset(new SettingsChangeGlobalError(changes, this));
+void Protector::InitAndShowChange(BaseSettingChange* change) {
+  VLOG(1) << "Init change";
+  if (!change->Init(this)) {
+    VLOG(1) << "Error while initializing, removing ourselves";
+    delete change;
+    OnRemovedFromProfile();
+    return;
+  }
+  error_.reset(new SettingsChangeGlobalError(change, this));
   error_->ShowForProfile(profile_);
 }
 
-void Protector::OnApplyChanges() {
-  OnChangesAction(&SettingChange::Accept);
+void Protector::OnApplyChange() {
+  VLOG(1) << "Apply change";
+  error_->mutable_change()->Apply(this);
 }
 
-void Protector::OnDiscardChanges() {
-  OnChangesAction(&SettingChange::Revert);
+void Protector::OnDiscardChange() {
+  VLOG(1) << "Discard change";
+  error_->mutable_change()->Discard(this);
 }
 
 void Protector::OnDecisionTimeout() {
-  OnChangesAction(&SettingChange::DoDefault);
+  // TODO(ivankr): Add histogram.
+  VLOG(1) << "Timeout";
 }
 
 void Protector::OnRemovedFromProfile() {
   BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE, this);
 }
 
-void Protector::OnChangesAction(SettingChangeAction action) {
-  DCHECK(error_.get());
-  SettingChangeVector* changes = error_->mutable_changes();
-  for (SettingChangeVector::iterator it = changes->begin();
-       it != changes->end(); ++it)
-    ((*it)->*action)(this);
-}
-
 
 std::string SignSetting(const std::string& value) {
   crypto::HMAC hmac(crypto::HMAC::SHA256);
   if (!hmac.Init(kProtectorSigningKey)) {
     LOG(WARNING) << "Failed to initialize HMAC algorithm for signing";
     return std::string();
   }
 
   std::vector<unsigned char> digest(hmac.DigestLength());
   if (!hmac.Sign(value, &digest[0], digest.size())) {
     LOG(WARNING) << "Failed to sign setting";
     return std::string();
   }
 
   return std::string(&digest[0], &digest[0] + digest.size());
 }
 
 bool IsSettingValid(const std::string& value, const std::string& signature) {
   crypto::HMAC hmac(crypto::HMAC::SHA256);
   if (!hmac.Init(kProtectorSigningKey)) {
     LOG(WARNING) << "Failed to initialize HMAC algorithm for verification.";
     return false;
   }
   return hmac.Verify(value, signature);
 }
 
 }  // namespace protector