Cleanup GpuMemoryBuffer

content/common/gpu/client/gpu_memory_buffer_impl_io_surface.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/common/gpu/client/gpu_memory_buffer_impl_io_surface.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "content/common/gpu/client/gpu_memory_buffer_factory_host.h"
 #include "ui/gl/gl_bindings.h"
 
 namespace content {
 namespace {
 
 base::StaticAtomicSequenceNumber g_next_buffer_id;
 
-void Noop() {
+void GpuMemoryBufferDeleted(const gfx::GpuMemoryBufferHandle& handle,
+                            uint32 sync_point) {
+  GpuMemoryBufferFactoryHost::GetInstance()->DestroyGpuMemoryBuffer(handle,
+                                                                    sync_point);
 }
 
 void GpuMemoryBufferCreated(
     const gfx::Size& size,
     gfx::GpuMemoryBuffer::Format format,
     const GpuMemoryBufferImpl::CreationCallback& callback,
     const gfx::GpuMemoryBufferHandle& handle) {
   DCHECK_EQ(gfx::IO_SURFACE_BUFFER, handle.type);
 
   callback.Run(GpuMemoryBufferImplIOSurface::CreateFromHandle(
-      handle, size, format, base::Bind(&Noop)));
+      handle, size, format, base::Bind(&GpuMemoryBufferDeleted, handle)));
 }
 
 void GpuMemoryBufferCreatedForChildProcess(
     const GpuMemoryBufferImpl::AllocationCallback& callback,
     const gfx::GpuMemoryBufferHandle& handle) {
   DCHECK_EQ(gfx::IO_SURFACE_BUFFER, handle.type);
 
   callback.Run(handle);
 }
 
@@ skipping 55 matching lines @@
 
   base::ScopedCFTypeRef<IOSurfaceRef> io_surface(
       IOSurfaceLookup(handle.io_surface_id));
   if (!io_surface)
     return scoped_ptr<GpuMemoryBufferImpl>();
 
   return make_scoped_ptr<GpuMemoryBufferImpl>(new GpuMemoryBufferImplIOSurface(
       size, format, callback, io_surface.get()));
 }
 
+void GpuMemoryBufferImplIOSurface::DeletedByChildProcess(
+    const gfx::GpuMemoryBufferId& id,
+    uint32_t sync_point) {
+  gfx::GpuMemoryBufferHandle handle;
+  handle.type = gfx::IO_SURFACE_BUFFER;
+  handle.global_id = id;
+

[reveman, 2014/11/04 00:16:12]

nit: make blank line usage consistent with Create/AllocateForChildProcess

+  GpuMemoryBufferFactoryHost::GetInstance()->DestroyGpuMemoryBuffer(handle,
+                                                                    sync_point);
+}
+
 // static
 bool GpuMemoryBufferImplIOSurface::IsFormatSupported(Format format) {
   switch (format) {
     case BGRA_8888:
       return true;
     case RGBA_8888:
     case RGBX_8888:
       return false;
   }
 
@@ skipping 53 matching lines @@
 }
 
 gfx::GpuMemoryBufferHandle GpuMemoryBufferImplIOSurface::GetHandle() const {
   gfx::GpuMemoryBufferHandle handle;
   handle.type = gfx::IO_SURFACE_BUFFER;
   handle.io_surface_id = IOSurfaceGetID(io_surface_);
   return handle;
 }
 
 }  // namespace content