exo: Directly create GpuMemoryBufferImpl when a handle is available.

components/exo/shared_memory.cc

Index: components/exo/shared_memory.cc
diff --git a/components/exo/shared_memory.cc b/components/exo/shared_memory.cc
index d0b2176c36b2503f7cb1f3af6695c24eb5fdc33b..4b6f6806c7598dca0aeb56be88f0011328cad2f6 100644
--- a/components/exo/shared_memory.cc
+++ b/components/exo/shared_memory.cc
@@ -13,9 +13,8 @@
 #include "base/memory/ptr_util.h"
 #include "base/trace_event/trace_event.h"
 #include "components/exo/buffer.h"
-#include "gpu/command_buffer/client/gpu_memory_buffer_manager.h"
+#include "gpu/ipc/client/gpu_memory_buffer_impl_shared_memory.h"
 #include "third_party/khronos/GLES2/gl2.h"
-#include "ui/aura/env.h"
 #include "ui/compositor/compositor.h"
 #include "ui/gfx/buffer_format_util.h"
 #include "ui/gfx/geometry/size.h"
@@ -70,10 +69,9 @@ std::unique_ptr<Buffer> SharedMemory::CreateBuffer(const gfx::Size& size,
   handle.stride = stride;
 
   std::unique_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer =
-      aura::Env::GetInstance()
-          ->context_factory()
-          ->GetGpuMemoryBufferManager()
-          ->CreateGpuMemoryBufferFromHandle(handle, size, format);
+      gpu::GpuMemoryBufferImplSharedMemory::CreateFromHandle(
+          handle, size, format, gfx::BufferUsage::GPU_READ,
+          gpu::GpuMemoryBufferImpl::DestructionCallback());
   if (!gpu_memory_buffer) {
     LOG(ERROR) << "Failed to create GpuMemoryBuffer from handle";
     return nullptr;