Command to mark surface inactive, so gpu process can release resources.

content/common/gpu/image_transport_surface.cc

 // Copyright (c) 2011 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.
 
 #if defined(ENABLE_GPU)
 
 #include "content/common/gpu/image_transport_surface.h"
 
 #include "base/callback.h"
 #include "content/common/gpu/gpu_channel.h"
@@ skipping 24 matching lines @@
 
 bool ImageTransportHelper::Initialize() {
   gpu::gles2::GLES2Decoder* decoder = Decoder();
 
   if (!decoder)
     return false;
 
   decoder->SetResizeCallback(
        NewCallback(this, &ImageTransportHelper::Resize));
 
+  decoder->SetSurfaceVisibleCallback(
+       NewCallback(this, &ImageTransportHelper::SurfaceVisible));
+
   return true;
 }
 
 void ImageTransportHelper::Destroy() {
 }
 
 bool ImageTransportHelper::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(ImageTransportHelper, message)
     IPC_MESSAGE_HANDLER(AcceleratedSurfaceMsg_BuffersSwappedACK,
@@ skipping 50 matching lines @@
 void ImageTransportHelper::OnNewSurfaceACK(
     uint64 surface_id,
     TransportDIB::Handle shm_handle) {
   surface_->OnNewSurfaceACK(surface_id, shm_handle);
 }
 
 void ImageTransportHelper::Resize(gfx::Size size) {
   surface_->OnResize(size);
 }
 
+void ImageTransportHelper::SurfaceVisible(bool visible) {
+  surface_->OnSurfaceVisible(visible);
+}
+
 bool ImageTransportHelper::MakeCurrent() {
   gpu::gles2::GLES2Decoder* decoder = Decoder();
   if (!decoder)
     return false;
   return decoder->MakeCurrent();
 }
 
 gpu::GpuScheduler* ImageTransportHelper::Scheduler() {
   GpuChannel* channel = manager_->LookupChannel(renderer_id_);
   if (!channel)
@@ skipping 14 matching lines @@
 
   GpuCommandBufferStub* stub =
       channel->LookupCommandBuffer(command_buffer_id_);
   if (!stub)
     return NULL;
 
   return stub->decoder();
 }
 
 #endif  // defined(ENABLE_GPU)