Move IdentityProvider usage from GCMDriverDesktop to GCMProfileService

components/gcm_driver/gcm_driver_desktop.cc

Index: components/gcm_driver/gcm_driver_desktop.cc
diff --git a/components/gcm_driver/gcm_driver_desktop.cc b/components/gcm_driver/gcm_driver_desktop.cc
index 9f6a7c2c24b7996428458929cd64b6f2869ad4ba..2e294197249844cb883bdc785f065e09e5cf570e 100644
--- a/components/gcm_driver/gcm_driver_desktop.cc
+++ b/components/gcm_driver/gcm_driver_desktop.cc
@@ -16,7 +16,6 @@
 #include "components/gcm_driver/gcm_app_handler.h"
 #include "components/gcm_driver/gcm_client_factory.h"
 #include "components/gcm_driver/system_encryptor.h"
-#include "google_apis/gaia/oauth2_token_service.h"
 #include "net/url_request/url_request_context_getter.h"
 
 namespace gcm {
@@ -109,7 +108,6 @@ class GCMDriverDesktop::IOWorker : public GCMClient::Delegate {
       scoped_ptr<GCMClientFactory> gcm_client_factory,
       const GCMClient::ChromeBuildInfo& chrome_build_info,
       const base::FilePath& store_path,
-      const std::vector<std::string>& account_ids,
       const scoped_refptr<net::URLRequestContextGetter>& request_context,
       const scoped_refptr<base::SequencedTaskRunner> blocking_task_runner);
   void Start(const base::WeakPtr<GCMDriverDesktop>& service);
@@ -154,7 +152,6 @@ void GCMDriverDesktop::IOWorker::Initialize(
     scoped_ptr<GCMClientFactory> gcm_client_factory,
     const GCMClient::ChromeBuildInfo& chrome_build_info,
     const base::FilePath& store_path,
-    const std::vector<std::string>& account_ids,
     const scoped_refptr<net::URLRequestContextGetter>& request_context,
     const scoped_refptr<base::SequencedTaskRunner> blocking_task_runner) {
   DCHECK(io_thread_->RunsTasksOnCurrentThread());
@@ -163,7 +160,6 @@ void GCMDriverDesktop::IOWorker::Initialize(
 
   gcm_client_->Initialize(chrome_build_info,
                           store_path,
-                          account_ids,
                           blocking_task_runner,
                           request_context,
                           make_scoped_ptr<Encryptor>(new SystemEncryptor),
@@ -328,23 +324,19 @@ void GCMDriverDesktop::IOWorker::SetGCMRecording(bool recording) {
 
 GCMDriverDesktop::GCMDriverDesktop(
     scoped_ptr<GCMClientFactory> gcm_client_factory,
-    scoped_ptr<IdentityProvider> identity_provider,
     const GCMClient::ChromeBuildInfo& chrome_build_info,
     const base::FilePath& store_path,
     const scoped_refptr<net::URLRequestContextGetter>& request_context,
     const scoped_refptr<base::SequencedTaskRunner>& ui_thread,
     const scoped_refptr<base::SequencedTaskRunner>& io_thread,
     const scoped_refptr<base::SequencedTaskRunner>& blocking_task_runner)
-    : gcm_enabled_(true),
+    : signed_in_(false),
+      gcm_started_(false),
+      gcm_enabled_(true),
       gcm_client_ready_(false),
-      identity_provider_(identity_provider.Pass()),
       ui_thread_(ui_thread),
       io_thread_(io_thread),
       weak_ptr_factory_(this) {
-  // Get the list of available accounts.
-  std::vector<std::string> account_ids;
-  account_ids = identity_provider_->GetTokenService()->GetAccounts();
-
   // Create and initialize the GCMClient. Note that this does not initiate the
   // GCM check-in.
   io_worker_.reset(new IOWorker(ui_thread, io_thread));
@@ -355,29 +347,36 @@ GCMDriverDesktop::GCMDriverDesktop(
                  base::Passed(&gcm_client_factory),
                  chrome_build_info,
                  store_path,
-                 account_ids,
                  request_context,
                  blocking_task_runner));
-
-  identity_provider_->AddObserver(this);
 }
 
 GCMDriverDesktop::~GCMDriverDesktop() {
 }
 
-void GCMDriverDesktop::OnActiveAccountLogin() {
-  EnsureStarted();
+void GCMDriverDesktop::Shutdown() {
+  DCHECK(ui_thread_->RunsTasksOnCurrentThread());
+  GCMDriver::Shutdown();
+  io_thread_->DeleteSoon(FROM_HERE, io_worker_.release());
 }
 
-void GCMDriverDesktop::OnActiveAccountLogout() {
-  CheckOut();
+void GCMDriverDesktop::SignIn() {
+  signed_in_ = true;
+  EnsureStarted();
 }
 
-void GCMDriverDesktop::Shutdown() {
+void GCMDriverDesktop::Purge() {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
-  identity_provider_->RemoveObserver(this);
-  GCMDriver::Shutdown();
-  io_thread_->DeleteSoon(FROM_HERE, io_worker_.release());
+
+  // We still proceed with the check-out logic even if the check-in is not
+  // initiated in the current session. This will make sure that all the
+  // persisted data written previously will get purged.
+  signed_in_ = false;
+  RemoveCachedData();
+
+  io_thread_->PostTask(FROM_HERE,
+                       base::Bind(&GCMDriverDesktop::IOWorker::CheckOut,
+                       base::Unretained(io_worker_.get())));
 }
 
 void GCMDriverDesktop::AddAppHandler(const std::string& app_id,
@@ -422,7 +421,7 @@ void GCMDriverDesktop::Stop() {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
   // No need to stop GCM service if not started yet.
-  if (account_id_.empty())
+  if (!gcm_started_)
     return;
 
   RemoveCachedData();
@@ -526,7 +525,7 @@ GCMClient* GCMDriverDesktop::GetGCMClientForTesting() const {
 
 bool GCMDriverDesktop::IsStarted() const {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
-  return !account_id_.empty();
+  return gcm_started_;
 }
 
 bool GCMDriverDesktop::IsGCMClientReady() const {
@@ -563,6 +562,9 @@ void GCMDriverDesktop::SetGCMRecording(const GetGCMStatisticsCallback& callback,
 GCMClient::Result GCMDriverDesktop::EnsureStarted() {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
+  if (gcm_started_)
+    return GCMClient::SUCCESS;
+
   if (!gcm_enabled_)
     return GCMClient::GCM_DISABLED;
 
@@ -570,18 +572,10 @@ GCMClient::Result GCMDriverDesktop::EnsureStarted() {
   if (app_handlers().empty())
     return GCMClient::UNKNOWN_ERROR;
 
-  // Is the user signed in?
-  const std::string account_id = identity_provider_->GetActiveAccountId();
-  if (account_id.empty())
+  // TODO(jianli): To be removed when sign-in enforcement is dropped.
+  if (!signed_in_)
     return GCMClient::NOT_SIGNED_IN;
 
-  // CheckIn could be called more than once when:
-  // 1) The password changes.
-  // 2) Register/send function calls it to ensure CheckIn is done.
-  if (account_id_ == account_id)
-    return GCMClient::SUCCESS;
-  account_id_ = account_id;
-
   DCHECK(!delayed_task_controller_);
   delayed_task_controller_.reset(new DelayedTaskController);
 
@@ -593,6 +587,7 @@ GCMClient::Result GCMDriverDesktop::EnsureStarted() {
                  base::Unretained(io_worker_.get()),
                  weak_ptr_factory_.GetWeakPtr()));
 
+  gcm_started_ = true;
   return GCMClient::SUCCESS;
 }
 
@@ -602,34 +597,19 @@ void GCMDriverDesktop::RemoveCachedData() {
   // GCM service is stopped.
   weak_ptr_factory_.InvalidateWeakPtrs();
 
-  account_id_.clear();
+  gcm_started_ = false;
   gcm_client_ready_ = false;
   delayed_task_controller_.reset();
   ClearCallbacks();
 }
 
-void GCMDriverDesktop::CheckOut() {
-  DCHECK(ui_thread_->RunsTasksOnCurrentThread());
-
-  // We still proceed with the check-out logic even if the check-in is not
-  // initiated in the current session. This will make sure that all the
-  // persisted data written previously will get purged.
-
-  RemoveCachedData();
-
-  io_thread_->PostTask(
-      FROM_HERE,
-      base::Bind(&GCMDriverDesktop::IOWorker::CheckOut,
-                 base::Unretained(io_worker_.get())));
-}
-
 void GCMDriverDesktop::MessageReceived(
     const std::string& app_id,
     const GCMClient::IncomingMessage& message) {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
-  // Drop the event if signed out.
-  if (account_id_.empty())
+  // Drop the event if the service has been stopped.
+  if (!gcm_started_)
     return;
 
   GetAppHandler(app_id)->OnMessage(app_id, message);
@@ -638,8 +618,8 @@ void GCMDriverDesktop::MessageReceived(
 void GCMDriverDesktop::MessagesDeleted(const std::string& app_id) {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
-  // Drop the event if signed out.
-  if (account_id_.empty())
+  // Drop the event if the service has been stopped.
+  if (!gcm_started_)
     return;
 
   GetAppHandler(app_id)->OnMessagesDeleted(app_id);
@@ -650,8 +630,8 @@ void GCMDriverDesktop::MessageSendError(
     const GCMClient::SendErrorDetails& send_error_details) {
   DCHECK(ui_thread_->RunsTasksOnCurrentThread());
 
-  // Drop the event if signed out.
-  if (account_id_.empty())
+  // Drop the event if the service has been stopped.
+  if (!gcm_started_)
     return;
 
   GetAppHandler(app_id)->OnSendError(app_id, send_error_details);
@@ -678,10 +658,4 @@ void GCMDriverDesktop::GetGCMStatisticsFinished(
     LOG(WARNING) << "request_gcm_statistics_callback_ is NULL.";
 }
 
-std::string GCMDriverDesktop::SignedInUserName() const {
-  if (IsStarted())
-    return identity_provider_->GetActiveUsername();
-  return std::string();
-}
-
 }  // namespace gcm