[Sync] Have SyncableService's take ownership of their SyncChangeProcessor.

tools/valgrind/drmemory/suppressions_full.txt

 # This file contains suppressions for the Dr.Memory tool, see
 # http://dev.chromium.org/developers/how-tos/using-drmemory
 #
 # This file should contain suppressions only for the reports happening
 # in the 'full' mode (drmemory_full).
 # For the reports that can happen in the light mode (a.k.a. drmemory_light),
 # please use suppressions.txt instead.
 
 ###############################################################
 # Known reports on the third party we have no control over.
@@ skipping 1210 matching lines @@
 *!notifier::ProxyResolvingClientSocket::ProcessProxyResolveDone
 *!base::internal::RunnableAdapter<void (__thiscall notifier::ProxyResolvingClientSocket::*)(int)>::Run
 
 LEAK
 name=http://crbug.com/100608
 *!generic_cpp_alloc
 *!operator new
 *!SQLitePersistentCookieStore::Backend::LoadCookiesForDomains
 
 LEAK
-name=http://crbug.com/117538 a
-...
-*!ProfileSyncComponentsFactoryMock::CreateGenericChangeProcessor
-*!browser_sync::UIDataTypeController::Associate
-*!browser_sync::UIDataTypeController::Start
-*!browser_sync::DataTypeManagerImpl::StartNextType
-*!browser_sync::DataTypeManagerImpl::DownloadReady
-
-LEAK
-name=http://crbug.com/117538 b
-...
-*!ProfileSyncComponentsFactoryMock::CreateSharedChangeProcessor
-*!browser_sync::NewNonFrontendDataTypeController::Start
-*!browser_sync::DataTypeManagerImpl::StartNextType
-*!browser_sync::DataTypeManagerImpl::DownloadReady
-
-LEAK
-name=http://crbug.com/117538 c
-...
-*!ProfileSyncComponentsFactoryMock::CreateDataTypeManager
-*!ProfileSyncService::ConfigureDataTypeManager
-*!ProfileSyncService::OnBackendInitialized
-*!TestProfileSyncService::OnBackendInitialized
-
-LEAK
 name=http://crbug.com/117539
 *!generic_cpp_alloc
 *!operator new
 *!std::_Allocate<net::SSLConfigService::Observer *>
 *!std::allocator<net::SSLConfigService::Observer *>::allocate
 *!std::vector<net::SSLConfigService::Observer *,std::allocator<net::SSLConfigService::Observer *> >::_Insert_n
 *!std::vector<net::SSLConfigService::Observer *,std::allocator<net::SSLConfigService::Observer *> >::insert
 *!std::vector<net::SSLConfigService::Observer *,std::allocator<net::SSLConfigService::Observer *> >::push_back
 *!ObserverListBase<net::SSLConfigService::Observer>::AddObserver
 ...
 *!net::HttpNetworkSession::HttpNetworkSession
 *!notifier::ProxyResolvingClientSocket::ProxyResolvingClientSocket
 *!notifier::XmppClientSocketFactory::CreateTransportClientSocket
 *!notifier::ChromeAsyncSocket::Connect
 *!buzz::XmppClient::ProcessStartXmppLogin
 *!buzz::XmppClient::Process
 *!talk_base::Task::Step
 *!talk_base::TaskRunner::InternalRunTasks
 *!talk_base::TaskRunner::RunTasks
 *!notifier::TaskPump::CheckAndRunTasks
 *!base::internal::RunnableAdapter<void (__thiscall notifier::TaskPump::*)(void)>::Run