[GCM] Add heartbeat manager and reconnection logic due to heartbeat failure

google_apis/gcm/engine/connection_handler_impl_unittest.cc

 // Copyright 2013 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 "google_apis/gcm/engine/connection_handler_impl.h"
 
 #include "base/bind.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 181 matching lines @@
       TestTimeouts::tiny_timeout(),
           base::Bind(&GCMConnectionHandlerImplTest::ReadContinuation,
                      base::Unretained(this),
                      dst_proto),
           base::Bind(&GCMConnectionHandlerImplTest::WriteContinuation,
                      base::Unretained(this)),
           base::Bind(&GCMConnectionHandlerImplTest::ConnectionContinuation,
                      base::Unretained(this))));
   EXPECT_FALSE(connection_handler()->CanSendMessage());
   connection_handler_->Init(*BuildLoginRequest(kAuthId, kAuthToken),
-                            socket_.Pass());
+                            socket_.get());
 }
 
 void GCMConnectionHandlerImplTest::ReadContinuation(
     ScopedMessage* dst_proto,
     ScopedMessage new_proto) {
   *dst_proto = new_proto.Pass();
   run_loop_->Quit();
 }
 
 void GCMConnectionHandlerImplTest::WaitForMessage() {
@@ skipping 406 matching lines @@
   data_message.set_category(kDataMsgCategory);
   connection_handler()->SendMessage(data_message);
   EXPECT_FALSE(connection_handler()->CanSendMessage());
   WaitForMessage();  // The message send. Should result in an error
   EXPECT_FALSE(connection_handler()->CanSendMessage());
   EXPECT_EQ(net::ERR_CONNECTION_CLOSED, last_error());
 }
 
 }  // namespace
 }  // namespace gcm