Sync: move v2 classes in chrome/internal_api to syncer_v2 namespace.

This changes namespace of some of internal API Bismarck classes from
syncer to syncer_v2 to make it easier to distinguish the new code from the
current Sync implementation. The change includes a bit of dependency
cleanup. This is a fairly trivial change, but a good way to see most of
Bismarck classes and how they are integrated in the rest of the code.
There are two more separate issues to make a similar namespace change
in sync/engine and components/sync_driver directories.
sync/engine

BUG=516414

Review URL: https://codereview.chromium.org/1266113004

Cr-Commit-Position: refs/heads/master@{#341862}

1 files changed, 5 insertions, 4 deletions

diff --git a/sync/internal_api/sync_manager_impl.cc b/sync/internal_api/sync_manager_impl.cc
index 67dd78f..15d2d85 100644
--- a/sync/internal_api/sync_manager_impl.cc
+++ b/sync/internal_api/sync_manager_impl.cc
@@ -313,11 +313,12 @@ void SyncManagerImpl::Init(InitArgs* args) {
 
   // Bind the SyncContext WeakPtr to this thread.  This helps us crash earlier
   // if the pointer is misused in debug mode.
-  base::WeakPtr<SyncContext> weak_core = model_type_registry_->AsWeakPtr();
+  base::WeakPtr<syncer_v2::SyncContext> weak_core =
+      model_type_registry_->AsWeakPtr();
   weak_core.get();
 
-  sync_context_proxy_.reset(
-      new SyncContextProxyImpl(base::ThreadTaskRunnerHandle::Get(), weak_core));
+  sync_context_proxy_.reset(new syncer_v2::SyncContextProxyImpl(
+      base::ThreadTaskRunnerHandle::Get(), weak_core));
 
   // Build a SyncSessionContext and store the worker in it.
   DVLOG(1) << "Sync is bringing up SyncSessionContext.";
@@ -940,7 +941,7 @@ UserShare* SyncManagerImpl::GetUserShare() {
   return &share_;
 }
 
-syncer::SyncContextProxy* SyncManagerImpl::GetSyncContextProxy() {
+syncer_v2::SyncContextProxy* SyncManagerImpl::GetSyncContextProxy() {
   DCHECK(initialized_);
   return sync_context_proxy_.get();
 }