Android: SetCreateContextCallback

content/browser/android/in_process/synchronous_compositor_impl.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 "content/browser/android/in_process/synchronous_compositor_impl.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/lazy_instance.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 27 matching lines @@
   it.Advance();
   DCHECK(it.IsAtEnd());  // Not multiprocess compatible.
   return id;
 }
 
 base::LazyInstance<SynchronousCompositorFactoryImpl>::Leaky g_factory =
     LAZY_INSTANCE_INITIALIZER;
 
 }  // namespace
 
+SynchronousCompositor::ContextHolder::ContextHolder() : context(nullptr) {
+}
+
+SynchronousCompositor::ContextHolder::~ContextHolder() {
+}
+
 DEFINE_WEB_CONTENTS_USER_DATA_KEY(SynchronousCompositorImpl);
 
 // static
 SynchronousCompositorImpl* SynchronousCompositorImpl::FromID(int process_id,
                                                              int routing_id) {
   if (g_factory == NULL)
     return NULL;
   RenderViewHost* rvh = RenderViewHost::FromID(process_id, routing_id);
   if (!rvh)
     return NULL;
@@ skipping 310 matching lines @@
     g_factory.Get();  // Ensure it's initialized.
     SynchronousCompositorImpl::CreateForWebContents(contents);
   }
   SynchronousCompositorImpl* instance =
       SynchronousCompositorImpl::FromWebContents(contents);
   DCHECK(instance);
   instance->SetClient(client);
 }
 
 }  // namespace content