[GCM] Remove GCMDriver::Purge and GCMClient::CheckOut

components/gcm_driver/fake_gcm_client.cc

Index: components/gcm_driver/fake_gcm_client.cc
diff --git a/components/gcm_driver/fake_gcm_client.cc b/components/gcm_driver/fake_gcm_client.cc
index ea45c23388767775034b80d70c8f0ca9dd1e8dc3..4e1444cc8af5a62cca4f46153ff4d289410264da 100644
--- a/components/gcm_driver/fake_gcm_client.cc
+++ b/components/gcm_driver/fake_gcm_client.cc
@@ -24,7 +24,7 @@ FakeGCMClient::FakeGCMClient(
     const scoped_refptr<base::SequencedTaskRunner>& io_thread)
     : delegate_(NULL),
       sequence_id_(0),
-      status_(UNINITIALIZED),
+      started_(false),
       start_mode_(start_mode),
       ui_thread_(ui_thread),
       io_thread_(io_thread),
@@ -47,7 +47,7 @@ void FakeGCMClient::Initialize(
 
 void FakeGCMClient::Start() {
   DCHECK(io_thread_->RunsTasksOnCurrentThread());
-  DCHECK_NE(STARTED, status_);
+  DCHECK(!started_);
 
   if (start_mode_ == DELAY_START)
     return;
@@ -55,7 +55,7 @@ void FakeGCMClient::Start() {
 }
 
 void FakeGCMClient::DoLoading() {
-  status_ = STARTED;
+  started_ = true;
   base::MessageLoop::current()->PostTask(
       FROM_HERE,
       base::Bind(&FakeGCMClient::CheckinFinished,
@@ -64,16 +64,10 @@ void FakeGCMClient::DoLoading() {
 
 void FakeGCMClient::Stop() {
   DCHECK(io_thread_->RunsTasksOnCurrentThread());
-  status_ = STOPPED;
+  started_ = false;
   delegate_->OnDisconnected();
 }
 
-void FakeGCMClient::CheckOut() {
-  DCHECK(io_thread_->RunsTasksOnCurrentThread());
-  status_ = CHECKED_OUT;
-  sequence_id_++;
-}
-
 void FakeGCMClient::Register(const std::string& app_id,
                              const std::vector<std::string>& sender_ids) {
   DCHECK(io_thread_->RunsTasksOnCurrentThread());