Reland 201932: Add API function chrome.notifications.getAll

This function returns an object whose keys are the notification
IDs of all notifications created by that extension.

BUG=240924

TBR=miket@chromium.org

Review URL: https://chromiumcodereview.appspot.com/15715008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@203001 0039d316-1c4b-4281-b951-d872f2087c98

16 files changed, 265 insertions, 18 deletions

diff --git a/chrome/browser/extensions/api/notifications/notifications_api.cc b/chrome/browser/extensions/api/notifications/notifications_api.cc
index 9865aff..597cc8a 100644
--- a/chrome/browser/extensions/api/notifications/notifications_api.cc
+++ b/chrome/browser/extensions/api/notifications/notifications_api.cc
@@ -29,6 +29,23 @@ namespace {
 
 const char kResultKey[] = "result";
 
+// Given an extension id and another id, returns an id that is unique
+// relative to other extensions.
+std::string CreateScopedIdentifier(const std::string& extension_id,
+                                   const std::string& id) {
+  return extension_id + "-" + id;
+}
+
+// Removes the unique internal identifier to send the ID as the
+// extension expects it.
+std::string StripScopeFromIdentifier(const std::string& extension_id,
+                                     const std::string& id) {
+  size_t index_of_separator = extension_id.length() + 1;
+  DCHECK_LT(index_of_separator, id.length());
+
+  return id.substr(index_of_separator);
+}
+
 class NotificationsApiDelegate : public NotificationDelegate {
  public:
   NotificationsApiDelegate(ApiFunction* api_function,
@@ -46,13 +63,6 @@ class NotificationsApiDelegate : public NotificationDelegate {
       process_id_ = api_function->render_view_host()->GetProcess()->GetID();
   }
 
-  // Given an extension id and another id, returns an id that is unique
-  // relative to other extensions.
-  static std::string CreateScopedIdentifier(const std::string& extension_id,
-                                            const std::string& id) {
-    return extension_id + "-" + id;
-  }
-
   virtual void Display() OVERRIDE { }
 
   virtual void Error() OVERRIDE {
@@ -135,10 +145,7 @@ bool NotificationsApiFunction::IsNotificationsApiAvailable() {
   // We need to check this explicitly rather than letting
   // _permission_features.json enforce it, because we're sharing the
   // chrome.notifications permissions namespace with WebKit notifications.
-  if (!(GetExtension()->is_platform_app() || GetExtension()->is_extension()))
-    return false;
-
-  return true;
+  return GetExtension()->is_platform_app() || GetExtension()->is_extension();
 }
 
 NotificationsApiFunction::NotificationsApiFunction() {
@@ -333,9 +340,8 @@ bool NotificationsUpdateFunction::RunNotificationsApi() {
   params_ = api::notifications::Update::Params::Create(*args_);
   EXTENSION_FUNCTION_VALIDATE(params_.get());
 
-  if (g_browser_process->notification_ui_manager()->
-      DoesIdExist(NotificationsApiDelegate::CreateScopedIdentifier(
-          extension_->id(), params_->notification_id))) {
+  if (g_browser_process->notification_ui_manager()->DoesIdExist(
+          CreateScopedIdentifier(extension_->id(), params_->notification_id))) {
     CreateNotification(params_->notification_id, &params_->options);
     SetResult(Value::CreateBooleanValue(true));
   } else {
@@ -357,9 +363,8 @@ bool NotificationsClearFunction::RunNotificationsApi() {
   params_ = api::notifications::Clear::Params::Create(*args_);
   EXTENSION_FUNCTION_VALIDATE(params_.get());
 
-  bool cancel_result = g_browser_process->notification_ui_manager()->
-      CancelById(NotificationsApiDelegate::CreateScopedIdentifier(
-          extension_->id(), params_->notification_id));
+  bool cancel_result = g_browser_process->notification_ui_manager()->CancelById(
+      CreateScopedIdentifier(extension_->id(), params_->notification_id));
 
   SetResult(Value::CreateBooleanValue(cancel_result));
   SendResponse(true);
@@ -367,4 +372,29 @@ bool NotificationsClearFunction::RunNotificationsApi() {
   return true;
 }
 
+NotificationsGetAllFunction::NotificationsGetAllFunction() {}
+
+NotificationsGetAllFunction::~NotificationsGetAllFunction() {}
+
+bool NotificationsGetAllFunction::RunNotificationsApi() {
+  NotificationUIManager* notification_ui_manager =
+      g_browser_process->notification_ui_manager();
+  std::set<std::string> notification_ids =
+      notification_ui_manager->GetAllIdsByProfileAndSourceOrigin(
+          profile_, extension_->url());
+
+  scoped_ptr<DictionaryValue> result(new DictionaryValue());
+
+  for (std::set<std::string>::iterator iter = notification_ids.begin();
+       iter != notification_ids.end(); iter++) {
+    result->SetBooleanWithoutPathExpansion(
+        StripScopeFromIdentifier(extension_->id(), *iter), true);
+  }
+
+  SetResult(result.release());
+  SendResponse(true);
+
+  return true;
+}
+
 }  // namespace extensions
diff --git a/chrome/browser/extensions/api/notifications/notifications_api.h b/chrome/browser/extensions/api/notifications/notifications_api.h
index 8635a39..447d0bf 100644
--- a/chrome/browser/extensions/api/notifications/notifications_api.h
+++ b/chrome/browser/extensions/api/notifications/notifications_api.h
@@ -89,6 +89,20 @@ class NotificationsClearFunction : public NotificationsApiFunction {
   DECLARE_EXTENSION_FUNCTION("notifications.clear", NOTIFICATIONS_CLEAR)
 };
 
+class NotificationsGetAllFunction : public NotificationsApiFunction {
+ public:
+  NotificationsGetAllFunction();
+
+  // UIThreadExtensionFunction:
+  virtual bool RunNotificationsApi() OVERRIDE;
+
+ protected:
+  virtual ~NotificationsGetAllFunction();
+
+ private:
+  DECLARE_EXTENSION_FUNCTION("notifications.getAll", NOTIFICATIONS_GET_ALL)
+};
+
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_NOTIFICATIONS_NOTIFICATIONS_API_H_
diff --git a/chrome/browser/extensions/api/notifications/notifications_apitest.cc b/chrome/browser/extensions/api/notifications/notifications_apitest.cc
index 59a48ac..bf145fc 100644
--- a/chrome/browser/extensions/api/notifications/notifications_apitest.cc
+++ b/chrome/browser/extensions/api/notifications/notifications_apitest.cc
@@ -2,6 +2,7 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "base/stringprintf.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/extensions/api/notifications/notifications_api.h"
 #include "chrome/browser/extensions/extension_apitest.h"
@@ -12,6 +13,7 @@
 #include "content/public/browser/notification_service.h"
 #include "content/public/test/test_utils.h"
 #include "ui/message_center/message_center.h"
+#include "ui/message_center/message_center_switches.h"
 #include "ui/message_center/message_center_util.h"
 
 // TODO(kbr): remove: http://crbug.com/222296
@@ -260,6 +262,78 @@ IN_PROC_BROWSER_TEST_F(NotificationsApiTest, TestMultipleItemNotification) {
   ASSERT_TRUE(notification_id.length() > 0);
 }
 
+#if defined(OS_LINUX)
+#define MAYBE_TestGetAll DISABLED_TestGetAll
+#else
+#define MAYBE_TestGetAll TestGetAll
+#endif
+
+IN_PROC_BROWSER_TEST_F(NotificationsApiTest, MAYBE_TestGetAll) {
+  scoped_refptr<Extension> empty_extension(utils::CreateEmptyExtension());
+
+  {
+    scoped_refptr<extensions::NotificationsGetAllFunction>
+        notification_get_all_function(
+            new extensions::NotificationsGetAllFunction());
+    notification_get_all_function->set_extension(empty_extension.get());
+    notification_get_all_function->set_has_callback(true);
+    scoped_ptr<base::Value> result(utils::RunFunctionAndReturnSingleResult(
+        notification_get_all_function, "[]", browser(), utils::NONE));
+
+    base::DictionaryValue* return_value;
+    ASSERT_EQ(base::Value::TYPE_DICTIONARY, result->GetType());
+    ASSERT_TRUE(result->GetAsDictionary(&return_value));
+    ASSERT_TRUE(return_value->size() == 0);
+  }
+
+  const unsigned int kNotificationsToCreate = 4;
+
+  for (unsigned int i = 0; i < kNotificationsToCreate; i++) {
+    scoped_refptr<extensions::NotificationsCreateFunction>
+        notification_create_function(
+            new extensions::NotificationsCreateFunction());
+
+    notification_create_function->set_extension(empty_extension.get());
+    notification_create_function->set_has_callback(true);
+
+    scoped_ptr<base::Value> result(utils::RunFunctionAndReturnSingleResult(
+        notification_create_function,
+        base::StringPrintf("[\"identifier-%u\", "
+                           "{"
+                           "\"type\": \"basic\","
+                           "\"iconUrl\": \"an/image/that/does/not/exist.png\","
+                           "\"title\": \"Title\","
+                           "\"message\": \"Message.\","
+                           "\"priority\": 1,"
+                           "\"eventTime\": 1361488019.9999999"
+                           "}]",
+                           i),
+        browser(),
+        utils::NONE));
+  }
+
+  {
+    scoped_refptr<extensions::NotificationsGetAllFunction>
+        notification_get_all_function(
+            new extensions::NotificationsGetAllFunction());
+    notification_get_all_function->set_extension(empty_extension.get());
+    notification_get_all_function->set_has_callback(true);
+    scoped_ptr<base::Value> result(utils::RunFunctionAndReturnSingleResult(
+        notification_get_all_function, "[]", browser(), utils::NONE));
+
+    base::DictionaryValue* return_value;
+    ASSERT_EQ(base::Value::TYPE_DICTIONARY, result->GetType());
+    ASSERT_TRUE(result->GetAsDictionary(&return_value));
+    ASSERT_EQ(return_value->size(), kNotificationsToCreate);
+    bool dictionary_bool = false;
+    for (unsigned int i = 0; i < kNotificationsToCreate; i++) {
+      std::string id = base::StringPrintf("identifier-%u", i);
+      ASSERT_TRUE(return_value->GetBoolean(id, &dictionary_bool));
+      ASSERT_TRUE(dictionary_bool);
+    }
+  }
+}
+
 IN_PROC_BROWSER_TEST_F(NotificationsApiTest, TestEvents) {
 #if defined(OS_MACOSX)
   // TODO(kbr): re-enable: http://crbug.com/222296
diff --git a/chrome/browser/notifications/balloon_notification_ui_manager.cc b/chrome/browser/notifications/balloon_notification_ui_manager.cc
index 6388397..7c942d8 100644
--- a/chrome/browser/notifications/balloon_notification_ui_manager.cc
+++ b/chrome/browser/notifications/balloon_notification_ui_manager.cc
@@ -13,6 +13,7 @@
 #include "chrome/browser/idle.h"
 #include "chrome/browser/notifications/balloon_collection.h"
 #include "chrome/browser/notifications/notification.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/notification_service.h"
@@ -59,6 +60,26 @@ bool BalloonNotificationUIManager::CancelById(const std::string& id) {
   return balloon_collection_->RemoveById(id);
 }
 
+std::set<std::string>
+BalloonNotificationUIManager::GetAllIdsByProfileAndSourceOrigin(
+    Profile* profile,
+    const GURL& source) {
+  std::set<std::string> notification_ids =
+      NotificationUIManagerImpl::GetAllIdsByProfileAndSourceOrigin(profile,
+                                                                   source);
+
+  const BalloonCollection::Balloons& balloons =
+      balloon_collection_->GetActiveBalloons();
+  for (BalloonCollection::Balloons::const_iterator iter = balloons.begin();
+       iter != balloons.end(); ++iter) {
+    if (profile->IsSameProfile((*iter)->profile()) &&
+        source == (*iter)->notification().origin_url()) {
+      notification_ids.insert((*iter)->notification().notification_id());
+    }
+  }
+  return notification_ids;
+}
+
 bool BalloonNotificationUIManager::CancelAllBySourceOrigin(const GURL& source) {
   // Same pattern as CancelById, but more complicated than the above
   // because there may be multiple notifications from the same source.
diff --git a/chrome/browser/notifications/balloon_notification_ui_manager.h b/chrome/browser/notifications/balloon_notification_ui_manager.h
index 12bb78e..953891e 100644
--- a/chrome/browser/notifications/balloon_notification_ui_manager.h
+++ b/chrome/browser/notifications/balloon_notification_ui_manager.h
@@ -36,6 +36,9 @@ class BalloonNotificationUIManager
   // NotificationUIManager:
   virtual bool DoesIdExist(const std::string& notification_id) OVERRIDE;
   virtual bool CancelById(const std::string& notification_id) OVERRIDE;
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) OVERRIDE;
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE;
   virtual bool CancelAllByProfile(Profile* profile) OVERRIDE;
   virtual void CancelAll() OVERRIDE;
diff --git a/chrome/browser/notifications/message_center_notification_manager.cc b/chrome/browser/notifications/message_center_notification_manager.cc
index 0d37a90..d2cc43f 100644
--- a/chrome/browser/notifications/message_center_notification_manager.cc
+++ b/chrome/browser/notifications/message_center_notification_manager.cc
@@ -70,6 +70,25 @@ bool MessageCenterNotificationManager::CancelById(const std::string& id) {
   return true;
 }
 
+std::set<std::string>
+MessageCenterNotificationManager::GetAllIdsByProfileAndSourceOrigin(
+    Profile* profile,
+    const GURL& source) {
+
+  std::set<std::string> notification_ids =
+      NotificationUIManagerImpl::GetAllIdsByProfileAndSourceOrigin(profile,
+                                                                   source);
+
+  for (NotificationMap::iterator iter = profile_notifications_.begin();
+       iter != profile_notifications_.end(); iter++) {
+    if ((*iter).second->notification().origin_url() == source &&
+        profile->IsSameProfile((*iter).second->profile())) {
+      notification_ids.insert(iter->first);
+    }
+  }
+  return notification_ids;
+}
+
 bool MessageCenterNotificationManager::CancelAllBySourceOrigin(
     const GURL& source) {
   // Same pattern as CancelById, but more complicated than the above
@@ -94,7 +113,7 @@ bool MessageCenterNotificationManager::CancelAllByProfile(Profile* profile) {
   for (NotificationMap::iterator loopiter = profile_notifications_.begin();
        loopiter != profile_notifications_.end(); ) {
     NotificationMap::iterator curiter = loopiter++;
-    if ((*curiter).second->profile() == profile) {
+    if (profile->IsSameProfile((*curiter).second->profile())) {
       message_center_->RemoveNotification(curiter->first, /* by_user */ false);
       removed = true;
     }
diff --git a/chrome/browser/notifications/message_center_notification_manager.h b/chrome/browser/notifications/message_center_notification_manager.h
index 12f8900..0d08189 100644
--- a/chrome/browser/notifications/message_center_notification_manager.h
+++ b/chrome/browser/notifications/message_center_notification_manager.h
@@ -34,6 +34,9 @@ class MessageCenterNotificationManager
   // NotificationUIManager
   virtual bool DoesIdExist(const std::string& notification_id) OVERRIDE;
   virtual bool CancelById(const std::string& notification_id) OVERRIDE;
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) OVERRIDE;
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE;
   virtual bool CancelAllByProfile(Profile* profile) OVERRIDE;
   virtual void CancelAll() OVERRIDE;
diff --git a/chrome/browser/notifications/notification_ui_manager.cc b/chrome/browser/notifications/notification_ui_manager.cc
index 1b1d62dc..2c73a9e 100644
--- a/chrome/browser/notifications/notification_ui_manager.cc
+++ b/chrome/browser/notifications/notification_ui_manager.cc
@@ -7,6 +7,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/notifications/balloon_notification_ui_manager.h"
 #include "chrome/browser/notifications/message_center_notification_manager.h"
+#include "chrome/browser/profiles/profile.h"
 #include "ui/message_center/message_center_util.h"
 
 // static
diff --git a/chrome/browser/notifications/notification_ui_manager.h b/chrome/browser/notifications/notification_ui_manager.h
index 92dfe6e..6257939 100644
--- a/chrome/browser/notifications/notification_ui_manager.h
+++ b/chrome/browser/notifications/notification_ui_manager.h
@@ -5,6 +5,7 @@
 #ifndef CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_UI_MANAGER_H_
 #define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_UI_MANAGER_H_
 
+#include <set>
 #include <string>
 #include <vector>
 
@@ -36,6 +37,12 @@ class NotificationUIManager {
   // displayed or in the queue.  Returns true if anything was removed.
   virtual bool CancelById(const std::string& notification_id) = 0;
 
+  // Adds the notification_id for each outstanding notification to the set
+  // |notification_ids| (must not be NULL).
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) = 0;
+
   // Removes notifications matching the |source_origin| (which could be an
   // extension ID). Returns true if anything was removed.
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) = 0;
diff --git a/chrome/browser/notifications/notification_ui_manager_impl.cc b/chrome/browser/notifications/notification_ui_manager_impl.cc
index 0bda94d..e7fc422 100644
--- a/chrome/browser/notifications/notification_ui_manager_impl.cc
+++ b/chrome/browser/notifications/notification_ui_manager_impl.cc
@@ -95,6 +95,21 @@ bool NotificationUIManagerImpl::CancelById(const std::string& id) {
   return false;
 }
 
+std::set<std::string>
+NotificationUIManagerImpl::GetAllIdsByProfileAndSourceOrigin(
+    Profile* profile,
+    const GURL& source) {
+  std::set<std::string> notification_ids;
+  for (NotificationDeque::iterator iter = show_queue_.begin();
+       iter != show_queue_.end(); iter++) {
+    if ((*iter)->notification().origin_url() == source &&
+        profile->IsSameProfile((*iter)->profile())) {
+      notification_ids.insert((*iter)->notification().notification_id());
+    }
+  }
+  return notification_ids;
+}
+
 bool NotificationUIManagerImpl::CancelAllBySourceOrigin(const GURL& source) {
   // Same pattern as CancelById, but more complicated than the above
   // because there may be multiple notifications from the same source.
diff --git a/chrome/browser/notifications/notification_ui_manager_impl.h b/chrome/browser/notifications/notification_ui_manager_impl.h
index 7e56336..273beea 100644
--- a/chrome/browser/notifications/notification_ui_manager_impl.h
+++ b/chrome/browser/notifications/notification_ui_manager_impl.h
@@ -36,6 +36,9 @@ class NotificationUIManagerImpl
                    Profile* profile) OVERRIDE;
   virtual bool DoesIdExist(const std::string& notification_id) OVERRIDE;
   virtual bool CancelById(const std::string& notification_id) OVERRIDE;
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) OVERRIDE;
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE;
   virtual bool CancelAllByProfile(Profile* profile) OVERRIDE;
   virtual void CancelAll() OVERRIDE;
diff --git a/chrome/browser/notifications/notification_ui_manager_mac.h b/chrome/browser/notifications/notification_ui_manager_mac.h
index 6b95ee2..9286768 100644
--- a/chrome/browser/notifications/notification_ui_manager_mac.h
+++ b/chrome/browser/notifications/notification_ui_manager_mac.h
@@ -8,6 +8,7 @@
 #import <AppKit/AppKit.h>
 
 #include <map>
+#include <set>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_nsobject.h"
@@ -33,6 +34,8 @@ class NotificationUIManagerMac : public BalloonNotificationUIManager {
   // NotificationUIManager:
   virtual void Add(const Notification& notification,
                    Profile* profile) OVERRIDE;
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile, const GURL& source_origin) OVERRIDE;
   virtual bool CancelById(const std::string& notification_id) OVERRIDE;
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE;
   virtual bool CancelAllByProfile(Profile* profile) OVERRIDE;
diff --git a/chrome/browser/notifications/notification_ui_manager_mac.mm b/chrome/browser/notifications/notification_ui_manager_mac.mm
index 59339ed..0f0322b 100644
--- a/chrome/browser/notifications/notification_ui_manager_mac.mm
+++ b/chrome/browser/notifications/notification_ui_manager_mac.mm
@@ -11,6 +11,7 @@
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/balloon_notification_ui_manager.h"
 #include "chrome/browser/notifications/message_center_notification_manager.h"
+#include "chrome/browser/profiles/profile.h"
 #include "ui/message_center/message_center_util.h"
 
 @class NSUserNotificationCenter;
@@ -161,6 +162,25 @@ void NotificationUIManagerMac::Add(const Notification& notification,
   }
 }
 
+std::set<std::string>
+NotificationUIManagerMac::GetAllIdsByProfileAndSourceOrigin(
+    Profile* profile, const GURL& source_origin) {
+  std::set<std::string> notification_ids =
+      BalloonNotificationUIManager::GetAllIdsByProfileAndSourceOrigin(
+          profile, source_origin);
+
+  for (NotificationMap::iterator it = notification_map_.begin();
+       it != notification_map_.end(); ++it) {
+    ControllerNotification* controller_notification = it->second;
+    Notification* model = controller_notification->model;
+    if (model->origin_url() == source_origin &&
+        profile->IsSameProfile(controller_notification->profile)) {
+      notification_ids.insert(model->notification_id());
+    }
+  }
+  return notification_ids;
+}
+
 bool NotificationUIManagerMac::CancelById(const std::string& notification_id) {
   NotificationMap::iterator it = notification_map_.find(notification_id);
   if (it == notification_map_.end())
diff --git a/chrome/browser/notifications/sync_notifier/chrome_notifier_service_unittest.cc b/chrome/browser/notifications/sync_notifier/chrome_notifier_service_unittest.cc
index 0fee623..2fc4db7 100644
--- a/chrome/browser/notifications/sync_notifier/chrome_notifier_service_unittest.cc
+++ b/chrome/browser/notifications/sync_notifier/chrome_notifier_service_unittest.cc
@@ -11,6 +11,7 @@
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/notifications/sync_notifier/chrome_notifier_service.h"
 #include "chrome/browser/notifications/sync_notifier/synced_notification.h"
+#include "chrome/browser/profiles/profile.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_change_processor.h"
 #include "sync/api/sync_error_factory.h"
@@ -122,6 +123,7 @@ class StubNotificationUIManager : public NotificationUIManager {
       OVERRIDE {
     // Make a deep copy of the notification that we can inspect.
     notification_ = notification;
+    profile_ = profile;
   }
 
   // Returns true if any notifications match the supplied ID, either currently
@@ -136,6 +138,18 @@ class StubNotificationUIManager : public NotificationUIManager {
     return false;
   }
 
+  // Adds the notification_id for each outstanding notification to the set
+  // |notification_ids| (must not be NULL).
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) OVERRIDE {
+    std::set<std::string> notification_ids;
+    if (source == notification_.origin_url() &&
+        profile->IsSameProfile(profile_))
+      notification_ids.insert(notification_.notification_id());
+    return notification_ids;
+  }
+
   // Removes notifications matching the |source_origin| (which could be an
   // extension ID). Returns true if anything was removed.
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE {
@@ -157,6 +171,7 @@ class StubNotificationUIManager : public NotificationUIManager {
  private:
   DISALLOW_COPY_AND_ASSIGN(StubNotificationUIManager);
   Notification notification_;
+  Profile* profile_;
 };
 
 // Dummy SyncChangeProcessor used to help review what SyncChanges are pushed
diff --git a/chrome/browser/notifications/sync_notifier/synced_notification_unittest.cc b/chrome/browser/notifications/sync_notifier/synced_notification_unittest.cc
index 87810cc..6d7061d 100644
--- a/chrome/browser/notifications/sync_notifier/synced_notification_unittest.cc
+++ b/chrome/browser/notifications/sync_notifier/synced_notification_unittest.cc
@@ -9,6 +9,7 @@
 #include "chrome/browser/notifications/notification.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
 #include "chrome/browser/notifications/sync_notifier/synced_notification.h"
+#include "chrome/browser/profiles/profile.h"
 #include "sync/api/sync_data.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/protocol/synced_notification_specifics.pb.h"
@@ -87,6 +88,7 @@ class StubNotificationUIManager : public NotificationUIManager {
       OVERRIDE {
     // Make a deep copy of the notification that we can inspect.
     notification_ = notification;
+    profile_ = profile;
   }
 
   // Returns true if any notifications match the supplied ID, either currently
@@ -101,6 +103,16 @@ class StubNotificationUIManager : public NotificationUIManager {
     return false;
   }
 
+  virtual std::set<std::string> GetAllIdsByProfileAndSourceOrigin(
+      Profile* profile,
+      const GURL& source) OVERRIDE {
+    std::set<std::string> notification_ids;
+    if (source == notification_.origin_url() &&
+        profile->IsSameProfile(profile_))
+      notification_ids.insert(notification_.notification_id());
+    return notification_ids;
+  }
+
   // Removes notifications matching the |source_origin| (which could be an
   // extension ID). Returns true if anything was removed.
   virtual bool CancelAllBySourceOrigin(const GURL& source_origin) OVERRIDE {
@@ -122,6 +134,7 @@ class StubNotificationUIManager : public NotificationUIManager {
  private:
   DISALLOW_COPY_AND_ASSIGN(StubNotificationUIManager);
   Notification notification_;
+  Profile* profile_;
 };
 
 class SyncedNotificationTest : public testing::Test {
diff --git a/chrome/common/extensions/api/notifications.idl b/chrome/common/extensions/api/notifications.idl
index 1b339e6..059febf 100644
--- a/chrome/common/extensions/api/notifications.idl
+++ b/chrome/common/extensions/api/notifications.idl
@@ -67,6 +67,8 @@ namespace notifications {
 
   callback ClearCallback = void (boolean wasCleared);
 
+  callback GetAllCallback = void (object notifications);
+
   interface Functions {
     // Creates and displays a notification having the contents in |options|,
     // identified by the id |notificationId|. If |notificationId| is empty,
@@ -89,6 +91,10 @@ namespace notifications {
     // corresponding notification. |callback| indicates whether a matching
     // notification existed.
     static void clear(DOMString notificationId, ClearCallback callback);
+
+    // |callback| is executed with the set of notification_ids currently in
+    // the system.
+    static void getAll(GetAllCallback callback);
   };
 
   interface Events {