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 31 matching lines @@
     scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
     const std::string& debug_name) {
   if (!context3d)
     return NULL;
   return new ContextProviderInProcess(context3d.Pass(), debug_name);
 }
 
 ContextProviderInProcess::ContextProviderInProcess(
     scoped_ptr<WebGraphicsContext3DInProcessCommandBufferImpl> context3d,
     const std::string& debug_name)
-    : context3d_(context3d.Pass()),
-      destroyed_(false),
-      debug_name_(debug_name) {
+    : context3d_(context3d.Pass()), lost_(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 97 matching lines @@
 void ContextProviderInProcess::DeleteCachedResources() {
   DCHECK(context_thread_checker_.CalledOnValidThread());
 
   if (gr_context_)
     gr_context_->FreeGpuResources();
 }
 
 void ContextProviderInProcess::OnLostContext() {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   {
-    base::AutoLock lock(destroyed_lock_);
-    if (destroyed_)
+    base::AutoLock lock(lost_lock_);
+    if (lost_)
       return;
-    destroyed_ = true;
+    lost_ = true;
   }
   if (!lost_context_callback_.is_null())
     base::ResetAndReturn(&lost_context_callback_).Run();
   if (gr_context_)
     gr_context_->OnLostContext();
 }
 
-bool ContextProviderInProcess::DestroyedOnMainThread() {
+bool ContextProviderInProcess::HasBeenLostOnMainThread() {
   DCHECK(main_thread_checker_.CalledOnValidThread());
 
-  base::AutoLock lock(destroyed_lock_);
-  return destroyed_;
+  base::AutoLock lock(lost_lock_);
+  return lost_;
 }
 
 void ContextProviderInProcess::SetLostContextCallback(
     const LostContextCallback& lost_context_callback) {
   DCHECK(context_thread_checker_.CalledOnValidThread());
   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 false;
+}
+
 }  // namespace content