ozone: ClientPixmapManager passes VGEM fd from browser to renderer.

content/child/child_gpu_memory_buffer_manager.cc

Index: content/child/child_gpu_memory_buffer_manager.cc
diff --git a/content/child/child_gpu_memory_buffer_manager.cc b/content/child/child_gpu_memory_buffer_manager.cc
index 5513e5904becf6a58e3ac99ae04a169acbb6c5b5..7a7ab10a84d23be26e913416936362b5f800618b 100644
--- a/content/child/child_gpu_memory_buffer_manager.cc
+++ b/content/child/child_gpu_memory_buffer_manager.cc
@@ -7,6 +7,10 @@
 #include "content/common/child_process_messages.h"
 #include "content/common/gpu/client/gpu_memory_buffer_impl.h"
 
+#if defined(USE_OZONE)
+#include "content/child/child_native_pixmap_manager_ozone.h"
+#endif
+
 namespace content {
 namespace {
 
@@ -40,6 +44,10 @@ ChildGpuMemoryBufferManager::AllocateGpuMemoryBuffer(
                "height",
                size.height());
 
+#if defined(USE_OZONE)
+  ChildNativePixmapManager::CreateSingleton(sender_.get());
+#endif
+
   gfx::GpuMemoryBufferHandle handle;
   IPC::Message* message = new ChildProcessHostMsg_SyncAllocateGpuMemoryBuffer(
       size.width(), size.height(), format, usage, &handle);