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..e6e9978c5325dfe511c91f82719d5d0326bbb442 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.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"
@@ -31,6 +30,8 @@ bool IsSupportedFormat(gfx::BufferFormat format) {
          format == gfx::BufferFormat::BGRA_8888;
 }
 
+void DoNothing(const gpu::SyncToken& sync) {}
+
 }  // namespace
 
 ////////////////////////////////////////////////////////////////////////////////
@@ -69,11 +70,8 @@ std::unique_ptr<Buffer> SharedMemory::CreateBuffer(const gfx::Size& size,
   handle.offset = offset;
   handle.stride = stride;
 
-  std::unique_ptr<gfx::GpuMemoryBuffer> gpu_memory_buffer =
-      aura::Env::GetInstance()
-          ->context_factory()
-          ->GetGpuMemoryBufferManager()
-          ->CreateGpuMemoryBufferFromHandle(handle, size, format);
+  auto gpu_memory_buffer = gpu::GpuMemoryBufferImpl::CreateFromHandle(

[reveman, 2016/12/13 21:30:53]

ditto. avoid auto and use gpu::GpuMemoryBufferImplSharedMemory directly

[sadrul, 2016/12/14 01:41:30]

Done.

+      handle, size, format, gfx::BufferUsage::GPU_READ, base::Bind(&DoNothing));
   if (!gpu_memory_buffer) {
     LOG(ERROR) << "Failed to create GpuMemoryBuffer from handle";
     return nullptr;