Cleanup GpuMemoryBuffer

content/common/gpu/client/gpu_memory_buffer_impl_mac.cc

Index: content/common/gpu/client/gpu_memory_buffer_impl_mac.cc
diff --git a/content/common/gpu/client/gpu_memory_buffer_impl_mac.cc b/content/common/gpu/client/gpu_memory_buffer_impl_mac.cc
index e0fe58da0e9ff250f638ef491408b9da9b1598df..d29ae5e6654c678607f2446e3b6b2f605f553a25 100644
--- a/content/common/gpu/client/gpu_memory_buffer_impl_mac.cc
+++ b/content/common/gpu/client/gpu_memory_buffer_impl_mac.cc
@@ -57,7 +57,23 @@ void GpuMemoryBufferImpl::AllocateForChildProcess(
 void GpuMemoryBufferImpl::DeletedByChildProcess(
     gfx::GpuMemoryBufferType type,
     const gfx::GpuMemoryBufferId& id,
-    base::ProcessHandle child_process) {
+    base::ProcessHandle child_process,
+    int child_client_id,
+    uint32 sync_point) {
+  switch (type) {
+    case gfx::SHARED_MEMORY_BUFFER:
+      break;
+    case gfx::IO_SURFACE_BUFFER:
+      if (id.secondary_id != child_client_id) {
+        LOG(ERROR)
+            << "Child attempting to delete GpuMemoryBuffer it does not own";
+      } else {
+        GpuMemoryBufferImplIOSurface::DeletedByChildProcess(id, sync_point);
+      }
+      break;
+    default:
+      LOG(ERROR) << "Unexpected GpuMemoryBufferType";
+  }
 }
 
 // static