exo: Recreate Surface resources on context lost.

content/browser/compositor/gpu_process_transport_factory.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 "content/browser/compositor/gpu_process_transport_factory.h"
 
 #include <string>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 571 matching lines @@
     // Destroying the GLHelper may cause some async actions to be cancelled,
     // causing things to request a new GLHelper. Due to crbug.com/176091 the
     // GLHelper created in this case would be lost/leaked if we just reset()
     // on the |gl_helper_| variable directly. So instead we call reset() on a
     // local std::unique_ptr.
     std::unique_ptr<display_compositor::GLHelper> helper =
         std::move(gl_helper_);
 
     // If there are any observer left at this point, make sure they clean up
     // before we destroy the GLHelper.
-    FOR_EACH_OBSERVER(
-        ImageTransportFactoryObserver, observer_list_, OnLostResources());
+    FOR_EACH_OBSERVER(ui::ContextFactoryObserver, observer_list_,
+                      OnLostResources());
 
     helper.reset();
     DCHECK(!gl_helper_) << "Destroying the GLHelper should not cause a new "
                            "GLHelper to be created.";
   }
 #if defined(OS_WIN)
   gfx::RenderingWindowManager::GetInstance()->UnregisterParent(
       compositor->widget());
 #endif
 }
@@ skipping 75 matching lines @@
   if (!gl_helper_ && !per_compositor_data_.empty()) {
     scoped_refptr<cc::ContextProvider> provider =
         SharedMainThreadContextProvider();
     if (provider.get())
       gl_helper_.reset(new display_compositor::GLHelper(
           provider->ContextGL(), provider->ContextSupport()));
   }
   return gl_helper_.get();
 }
 
-void GpuProcessTransportFactory::AddObserver(
-    ImageTransportFactoryObserver* observer) {
-  observer_list_.AddObserver(observer);
-}
-
-void GpuProcessTransportFactory::RemoveObserver(
-    ImageTransportFactoryObserver* observer) {
-  observer_list_.RemoveObserver(observer);
-}
-
 #if defined(OS_MACOSX)
 void GpuProcessTransportFactory::SetCompositorSuspendedForRecycle(
     ui::Compositor* compositor,
     bool suspended) {
   PerCompositorDataMap::iterator it = per_compositor_data_.find(compositor);
   if (it == per_compositor_data_.end())
     return;
   PerCompositorData* data = it->second;
   DCHECK(data);
   if (data->display_output_surface)
@@ skipping 72 matching lines @@
   // new resources are created if needed.
   // Kill shared contexts for both threads in tandem so they are always in
   // the same share group.
   scoped_refptr<cc::ContextProvider> lost_shared_main_thread_contexts =
       shared_main_thread_contexts_;
   shared_main_thread_contexts_  = NULL;
 
   std::unique_ptr<display_compositor::GLHelper> lost_gl_helper =
       std::move(gl_helper_);
 
-  FOR_EACH_OBSERVER(ImageTransportFactoryObserver,
-                    observer_list_,
+  FOR_EACH_OBSERVER(ui::ContextFactoryObserver, observer_list_,
                     OnLostResources());
 
   // Kill things that use the shared context before killing the shared context.
   lost_gl_helper.reset();
   lost_shared_main_thread_contexts  = NULL;
 }
 
 scoped_refptr<cc::VulkanInProcessContextProvider>
 GpuProcessTransportFactory::SharedVulkanContextProvider() {
   if (!shared_vulkan_context_provider_initialized_) {
     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
             switches::kEnableVulkan)) {
       shared_vulkan_context_provider_ =
           cc::VulkanInProcessContextProvider::Create();
     }
 
     shared_vulkan_context_provider_initialized_ = true;
   }
   return shared_vulkan_context_provider_;
 }
 
 }  // namespace content