Reorganize GUIDs for GPU memory buffers

media/video/gpu_memory_buffer_video_frame_pool.cc

Index: media/video/gpu_memory_buffer_video_frame_pool.cc
diff --git a/media/video/gpu_memory_buffer_video_frame_pool.cc b/media/video/gpu_memory_buffer_video_frame_pool.cc
index d75f7aaa690b4b5a2442be1d1797cb642a86eb92..8743d434f594fe496146f20ba0dd5a67742c6d3c 100644
--- a/media/video/gpu_memory_buffer_video_frame_pool.cc
+++ b/media/video/gpu_memory_buffer_video_frame_pool.cc
@@ -472,9 +472,9 @@ bool GpuMemoryBufferVideoFramePool::PoolImpl::OnMemoryDump(
         dump->AddScalar("free_size",
                         base::trace_event::MemoryAllocatorDump::kUnitsBytes,
                         frame_resources->IsInUse() ? 0 : buffer_size_in_bytes);
-        base::trace_event::MemoryAllocatorDumpGuid shared_buffer_guid =
-            gfx::GetGpuMemoryBufferGUIDForTracing(tracing_process_id,
-                                                  buffer_id);
+        const auto& shared_buffer_guid =

[DaleCurtis, 2017/04/14 18:27:32]

is const& really what you want here?

[hajimehoshi, 2017/04/17 06:18:07]

Actually not. Done.

+            plane_resource.gpu_memory_buffer->GetHandle().GetGUIDForTracing(
+                tracing_process_id);
         pmd->CreateSharedGlobalAllocatorDump(shared_buffer_guid);
         pmd->AddOwnershipEdge(dump->guid(), shared_buffer_guid, kImportance);
       }