cc: Implement shared worker contexts. (v1)

content/browser/android/in_process/context_provider_in_process.cc

 // Copyright (c) 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/context_provider_in_process.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/strings/stringprintf.h"
 #include "cc/output/managed_memory_policy.h"
@@ skipping 40 matching lines @@
     const std::string& debug_name)
     : context3d_(context3d.Pass()),
       destroyed_(false),
       debug_name_(debug_name) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   DCHECK(context3d_);
   context_thread_checker_.DetachFromThread();
 }
 
 ContextProviderInProcess::~ContextProviderInProcess() {
-  DCHECK(main_thread_checker_.CalledOnValidThread() ||
-         context_thread_checker_.CalledOnValidThread());
 }
 
 blink::WebGraphicsContext3D* ContextProviderInProcess::WebContext3D() {
   DCHECK(lost_context_callback_proxy_);  // Is bound to thread.
   DCHECK(context_thread_checker_.CalledOnValidThread());
 
   return context3d_.get();
 }
 
 bool ContextProviderInProcess::BindToCurrentThread() {
@@ skipping 128 matching lines @@
   DCHECK(lost_context_callback_.is_null() ||
          lost_context_callback.is_null());
   lost_context_callback_ = lost_context_callback;
 }
 
 void ContextProviderInProcess::SetMemoryPolicyChangedCallback(
     const MemoryPolicyChangedCallback& memory_policy_changed_callback) {
   // There's no memory manager for the in-process implementation.
 }
 
+bool ContextProviderInProcess::HasBeenDestroyed() {
+  DCHECK(context_thread_checker_.CalledOnValidThread());
+  return destroyed_;

[piman, 2015/09/04 22:19:13]

I think you need to take destroyed_lock_.

+}
+
 }  // namespace content