Replace most uses of ViewManagerInitService with client lib ViewManager::Embed() to offer the same …

mojo/services/public/cpp/view_manager/lib/view_manager_client_impl.cc

 // Copyright 2014 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 "mojo/services/public/cpp/view_manager/lib/view_manager_client_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
+#include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/application/connect.h"
 #include "mojo/public/cpp/application/service_provider_impl.h"
 #include "mojo/public/interfaces/application/service_provider.mojom.h"
 #include "mojo/public/interfaces/application/shell.mojom.h"
 #include "mojo/services/public/cpp/view_manager/lib/view_private.h"
 #include "mojo/services/public/cpp/view_manager/util.h"
 #include "mojo/services/public/cpp/view_manager/view_manager_delegate.h"
 #include "mojo/services/public/cpp/view_manager/view_observer.h"
 #include "mojo/services/public/cpp/view_manager/window_manager_delegate.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ skipping 328 matching lines @@
     FOR_EACH_OBSERVER(ViewObserver,
                       *ViewPrivate(view).observers(),
                       OnViewInputEvent(view, event));
   }
   ack_callback.Run();
 }
 
 void ViewManagerClientImpl::Embed(
     const String& url,
     InterfaceRequest<ServiceProvider> service_provider) {
-  window_manager_delegate_->Embed(url, service_provider.Pass());
+  if (window_manager_delegate_)
+    window_manager_delegate_->Embed(url, service_provider.Pass());
 }
 
 void ViewManagerClientImpl::DispatchOnViewInputEvent(EventPtr event) {
   if (window_manager_delegate_)
     window_manager_delegate_->DispatchEvent(event.Pass());
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // ViewManagerClientImpl, WindowManagerClient implementation:
 
@@ skipping 45 matching lines @@
                     base::Unretained(this));
 }
 
 base::Callback<void(ErrorCode)>
     ViewManagerClientImpl::ActionCompletedCallbackWithErrorCode() {
   return base::Bind(&ViewManagerClientImpl::OnActionCompletedWithErrorCode,
                     base::Unretained(this));
 }
 
 }  // namespace mojo